Publications

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Conferences/Workshops

2024

QFusor: A UDF Optimizer Plugin for SQL Databases. K. Chasialis, T. Palaiologou, Y. Foufoulas, A. Simitsis, Y. Ioannidis. IEEE ICDE, 2024 Full text
HYPPO: Using Equivalences to Optimize Pipelines in Exploratory Machine Learning. A. Kontaxakis, D. Sacharidis, A. Simitsis, A. Abello, S. Nadal. IEEE ICDE, 2024 Full text
Performance Analysis of Distributed GPU-Accelerated Task-Based Workflows. Marcos N. L. Carvalho, Anna Queralt, Oscar Romero, Alkis Simitsis, Cristian Tatu, Rosa M. Badia. EDBT, 2024 Full text
MIP: Advanced Data Processing and Analytics for Science and Medicine. K. Filippopolitis, Y. Foufoulas, M. N. Garofalakis, A. Glenis, Y. E. Ioannidis, T.-M. Karampatsis, M.-O. Katsouli, E. Mailli, A. Papageorgiou-Mariglis, G. Papanikos, G. Pikramenos, J. Sakellariou, A. Simitsis, P. Ducouret, P. Ryvlin, M.-G. Spuhler. EDBT, 2024 Full text
A Study on Efficient Indexing for Table Search in Data Lakes. Ibraheem Taha, Matteo Lissandrini, Alkis Simitsis, Yannis E. Ioannidis. IEEE ICSC, 2024 Full text

2023

Forecasting Resource Demand for Dynamic Datacenter Sizing in Telco Infrastructures. Dimitra Paranou, Angelos Pentelas, Dimitris Katsiros, Konstantinos Maidatsis, George Giannopoulos, Evangelos Angelou, Nikos Anastopoulos, George Papastefanatos. 2023 IEEE International Conference on Big Data (BigData), 2023 Full text
Efficient Execution of User-Defined Functions in SQL Queries. Yannis Foufoulas, Alkis Simitsis. PVLDB, 2023 Full text
Adversarial Learning in Real-World Fraud Detection: Challenges and Perspectives. Daniele Lunghi, Alkis Simitsis, Olivier Caelen, Gianluca Bontempi. ACM Data Economy, SIGMOD, 2023 Full text
A Tool for Visual Exploration and Analysis of Solar Photovoltaic Module Data. Vassilis Stamatopoulos, Stavros Maroulis, Konstantinos Kozanis, Ioannis Psarros, George Papastefanatos, Giorgos Giannopoulos, Manolis Terrovitis. EDBT/ICDT Workshops 2023, 2023 Full text
Auditing for Spatial Fairness. Dimitris Sacharidis, Giorgos Giannopoulos, George Papastefanatos, Kostas Stefanidis. EDBT 2023, 2023 Full text
The History, Present, and Future of ETL Technology. Alkis Simitsis, Spiros Skiadopoulos, Panos Vassiliadis. DOLAP, 2023 Full text
Toulouse: Learning Join Order Optimization Policies for Rule-based Data Engines. Antonios Karvelas, Yannis Foufoulas, Alkis Simitsis, Yannis Ioannidis. DataPlat, 2023 Full text
User-Defined Functions in Modern Data Engines. Yannis Foufoulas, Alkis Simitsis. IEEE ICDE 2023, 2023 Full text

2022

Machine Learning Platform for Extreme Scale Computing on Compressed IoT Data. Seshu Tirupathi et al. IEEE International Conference on Big Data (Big Data 22), 2022 Full text
A preliminary assessment of the article deduplication algorithm used for the OpenAIRE Research Graph. Kleanthis Vichos, Michele De Bonis, Ilias Kanellos, Serafeim Chatzopoulos, Claudio Atzori, Natalia Manola, Paolo Manghi, Thanasis Vergoulis. IRCDL 2022, 2022 Full text
BIP! Scholar: A Service to Facilitate Fair Researcher Assessment. Thanasis Vergoulis, Serafeim Chatzopoulos, Kleanthis Vichos, Ilias Kanellos, Andrea Mannocci, Natalia Manola, Paolo Manghi. JCDL 2022, 2022 Full text
A Supervised Skyline-Based Algorithm for Spatial Entity Linkage. Suela Isaj, Vassilis Kaffes, Torben Bach Pedersen, Giorgos Giannopoulos. Published in Proceedings of the 25th International Conference on Extending Database Technology (EDBT), 29th March-1st April, 2022, ISBN 978-3-89318-085-7, 2022 Full text
VisualFacts: A Platform for In-Situ Visual Exploration and Real-Time Entity Resolution. George Papastefanatos, Giorgos Alexiou, Nikos Bikakis, Stavros Maroulis, Vassilis Stamatopoulos. EDBT'22 Workshops , 2022 Full text
YeSQL: You extend SQL with Rich and Highly Performant User-Defined Functions in Relational Databases. Yannis Foufoulas, Alkis Simitsis, Lefteris Stamatogiannakis, Yannis Ioannidis. PVLDB, 2022
YeSQL: Rich User-Defined Functions without the Overhead. Yannis Foufoulas, Alkis Simitsis, Yannis Ioannidis. PVLDB, 2022
SheerMP: Optimized Streaming Analytics-as-a-Service over Multi-site and Multi-platform Settings. George Stamatakis, Antonis Kontaxakis, Alkis Simitsis, Nikos Giatrakos, Antonios Deligiannakis. EDBT, 2022 Full text
Database Optimizers in the Era of Learning. Dimitris Tsesmelis, Alkis Simitsis. IEEE ICDE, 2022 Full text

2021

A Cloud-Native NGS Data Processing and Annotation Platform. Giannis Mouchakis, Babis Kostopoulos, Stasinos Konstantopoulos, Ilias Kanellos, Anargiros Tzerefos, Thanasis Vergoulis, Thodoris Dalamagas. Poly/DMAH@VLDB 2021: 121-132, 2021
Simplifying Impact Prediction for Scientific Articles. Thanasis Vergoulis, Ilias Kanellos, Giorgos Giannopoulos, Theodore Dalamagas. EDBT/ICDT Workshops 2021, 2021 Full text
Simplifying p-value calculation for the unbiased microRNAenrichment analysis, using ML-techniques. Konstantinos Zagganas, Maria Lioli, Thanasis Vergoulis, Theodore Dalamagas. EDBT/ICDT Workshops 2021, 2021 Full text
Ranking Papers by their Short-Term Scientific Impact. Ilias Kanellos, Thanasis Vergoulis, Dimitris Sacharidis, Theodore Dalamagas, Yannis Vassiliou. ICDE 2021: 1997-2002, 2021
VeTo-web: A Recommendation Tool for the Expansion of Sets of Scholars. Serafeim Chatzopoulos, Thanasis Vergoulis, Theodore Dalamagas, Christos Tryfonopoulos. JCDL 2021: 334-335, 2021
SCHeMa: Scheduling Scientific Containers on a Cluster of Heterogeneous Machines. Thanasis Vergoulis, Konstantinos Zagganas, Loukas Kavouras, Martin Reczko, Stelios Sartzetakis, Theodore Dalamagas. SSDBM 2021: 243-247, 2021 Full text
Visualising Scientific Topic Evolution. Panagiotis Deligiannis, Thanasis Vergoulis, Serafeim Chatzopoulos, Christos Tryfonopoulos. WWW (Companion Volume) 2021: 468-472, 2021
BIP! DB: A Dataset of Impact Measures for Scientific Publications. Thanasis Vergoulis, Ilias Kanellos, Claudio Atzori, Andrea Mannocci, Serafeim Chatzopoulos, Sandro La Bruzzo, Natalia Manola, Paolo Manghi. WWW (Companion Volume) 2021: 456-460, 2021 Full text
Model-Agnostic Counterfactual Explanations of Recommendations. Vassilis Kaffes, Dimitris Sacharidis, Giorgos Giannopoulos. Proceedings of the 29th ACM Conference on User Modeling, Adaptation and Personalization. June 2021. Pages 280–285, 2021 Full text
A Machine Learning Methodology for Next Day Wildfire Prediction. Stella Girtsou, Alexis Apostolakis, Giorgos Giannopoulos, Charalampos Kontoes. Published in: 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021 Full text
Modeling of Crisis Periods in Stock Markets. Apostolos Chalkis, Emmanouil Christoforou, Theodore Dalamagas, Ioannis Z. Emiris. LION: 55-65, 2021
Discovering Mixture-Based Best Regions of Arbitrary Shapes. Dimitrios Skoutas, Dimitris Sacharidis, Kostas Patroumpas. SIGSPATIAL: 468-479, 2021
Multi-Attribute Similarity Search for Interactive Data Exploration. Kostas Patroumpas, Alexandros Zeakis, Dimitrios Skoutas, Roberto Santoro. EDBT Workshops, 2021 Full text
BigDataVoyant: Automated Profiling of Large Geospatial Data. Pantelis Mitropoulos, Kostas Patroumpas, Dimitrios Skoutas, Thodoris Vakkas, Spiros Athanasiou. EDBT Workshops, 2021 Full text
SciNeM: A Scalable Data Science Tool for Heterogeneous Network Mining. Serafeim Chatzopoulos, Thanasis Vergoulis, Panagiotis Deligiannis, Dimitrios Skoutas, Theodore Dalamagas, Christos Tryfonopoulos. EDBT, 2021 Full text
Twin Subsequence Search in Time Series. Georgios Chatzigeorgakidis, Dimitrios Skoutas, Kostas Patroumpas, Themis Palpanas, Spiros Athanasiou, Spiros Skiadopoulos. EDBT, 2021 Full text
Adaptive Compression for Fast Scans on String Columns. Yannis Foufoulas, Lefteris Sidirourgos, Elefterios Stamatogiannakis, Yannis E. Ioannidis. SIGMOD Conference 2021: 554-562, 2021
RawVis: A System for Efficient In-situ Visual Analytics. Stavros Maroulis, Nikos Bikakis, George Papastefanatos, Panos Vassiliadis, Yannis Vassiliou. In SIGMOD 2021, Xi'an, Shaanxi, China, June 20 - 25, 2021 (Demo Paper), 2021 Full text
Adaptive Indexing for In-situ Visual Exploration and Analytics. Stavros Maroulis, Nikos Bikakis, George Papastefanatos, Panos Vassiliadis, Yannis Vassiliou. In Proceedings of the 23rd International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data co-located with EDBT/ICDT 2021 Joint Conference, DOLAP@EDBT/ICDT 2021, Nicosia, Cyprus, 2021 Full text
Assessing Staff's and Stroke Patients' Experiences in 8 Hospitals in Greece: Results from a Prospective Multi-Center Study. Petros Galanis et. al. 20th International Conference on Informatics, Management, and Technology in Healthcare (ICIMTH 2021): 392-396 , 2021 Full text
Interactivity, Fairness and Explanations in Recommendations. Giorgos Giannopoulos, George Papastefanatos, Dimitris Sacharidis, Kostas Stefanidis. In 6th International Workshop on Human Aspects in Adaptive and Personalized Interactive Environments (HAAPIE'21) in conjunction with ACM UMAP 2021, June 21-25, 2021, Utrecht, The Netherlands, 2021 Full text
Let the Database Talk Back: Natural Language Explanations for SQL. Stavroula Eleftherakis, Orest Gkini, Georgia Koutrika. SEA-Data@VLDB 2021: 14-19, 2021
Fairness-aware Methods in Rankings and Recommenders. Evaggelia Pitoura, Kostas Stefanidis, Georgia Koutrika. MDM 2021: 1-4, 2021
PyExplore: Query Recommendations for Data Exploration without Query Logs. Apostolos Glenis, Georgia Koutrika. SIGMOD Conference 2021: 2731-2735, 2021
Fairness in Rankings and Recommenders: Models, Methods and Research Directions. Evaggelia Pitoura, Kostas Stefanidis, Georgia Koutrika. ICDE 2021: 2358-2361, 2021
A Deep Dive into Deep Learning Approaches for Text-to-SQL Systems. George Katsogiannis-Meimarakis, Georgia Koutrika. SIGMOD Conference 2021: 2846-2851, 2021
Deep Learning Approaches for Text-to-SQL Systems. George Katsogiannis-Meimarakis, Georgia Koutrika. EDBT 2021: 710-713, 2021
An In-Depth Benchmarking of Text-to-SQL Systems. O. Gkini, T. Belmpas, G. Koutrika, Y. Ioannidis. Int’l ACM SIGMOD Conference, Beijing, China, pp. 632-644, June 2021, 2021
Towards creating a generalized complex event processing operator using FlinkCEP: architecture & benchmark. Eleni Kougioumtzi, Antonios Kontaxakis, Antonios Deligiannakis, Yannis Kotidis. DEBS, 2021
EasyFlinkCEP: Big Event Data Analytics for Everyone. Nikos Giatrakos, Eleni Kougioumtzi, Antonios Kontaxakis, Antonios Deligiannakis, Yannis Kotidis. ACM CIKM, 2021
Online Distributed Maritime Event Detection & Forecasting over Big Vessel Tracking Data. Marios Vodas, Konstantina Bereta, Dimitris Kladis, Dimitris Zissis, Elias Alevizos, Emmanouil Ntoulias, Alexander Artikis, Antonios Deligiannakis, Antonios Kontaxakis, Nikos Giatrakos, David Arnu, Edwin Yaqub, Fabian Temme, Mate Torok, Ralf Klinkenbe. IEEE BigData, 2021
Extreme-Scale Interactive Cross-Platform Streaming Analytics - The INFORE Approach. Antonios Deligiannakis, Nikos Giatrakos, Yannis Kotidis, Vasilis Samoladas, Alkis Simitsis. SEA-Data@VLDB, 2021 Full text
Assessing Visitor Activity in Urban Parks. Harry Nakos, Kostis Pristouris, and Yannis Stavrakas. Urban Complex Systems 2021 (Conference on Complex Systems workshop), Lyon, France, October 26, 2021, 2021
Evo-Path: Querying Data Evolution Through Complex Changes. Theodora Galani, Yannis Stavrakas, George Papastefanatos, and Yannis Vassiliou. 10th International Conference on Data Science, Technology and Applications (DATA 21): 353-361, July 6-8, 2021, 2021

2020

Databases and Information Systems in the AI Era: Contributions from ADBIS, TPDL and EDA 2020 Workshops and Doctoral Consortium. Ladjel Bellatreche, Fadila Bentayeb, Mária Bieliková, Omar Boussaid, Barbara Catania, Paolo Ceravolo, Elena Demidova, Mírian Halfeld Ferrari, María Teresa Gómez López, Carmem S. Hara, Slavica Kordic, Ivan Lukovic, Andrea Mannocci, Paolo Manghi, Franc. ADBIS/TPDL/EDA Workshops 2020: 3-20, 2020 Full text
Learning Advanced Similarities and Training Features for Toponym Interlinking. Giorgos Giannopoulos, Vassilis Kaffes, Georgios Kostoulas. ECIR 2020. Lecture Notes in Computer Science(), vol 12035., 2020 Full text
Boosting toponym interlinking by paying attention to both machine and deep learning. Konstantinos Alexis, Vassilis Kaffes, Giorgos Giannopoulos. Proceedings of the Sixth International ACM SIGMOD Workshop on Managing and Mining Enriched Geo-Spatial Data. June 2020. Article No.: 4. Pages 1–5, 2020 Full text
Determining the provenance of land parcel polygons via machine learning. Vassilis Kaffes, Giorgos Giannopoulos, Nontas Tsakonas, Spiros Skiadopoulos. 32nd International Conference on Scientific and Statistical Database Management. July 2020 Article No.: 21. Pages 1–4, 2020 Full text
Improving geocoding quality via learning to integrate multiple geocoders. Konstantinos Alexis, Vassilis Kaffes, Ilias Varkas, Andreas Syngros, Nontas Tsakonas, Giorgos Giannopoulos. 32nd International Conference on Scientific and Statistical Database Management. July 2020 Article No.: 20. Pages 1–4, 2020 Full text
Leveraging Double Simulation to Efficiently Evaluate Hybrid Patterns on Data Graphs. Xiaoying Wu, Dimitri Theodoratos, Dimitrios Skoutas, Michael Lan. WISE: 255-269, 2020
A Visual Explorer for Geolocated Time Series. Georgios Chatzigeorgakidis, Kostas Patroumpas, Dimitrios Skoutas, Spiros Athanasiou. SIGSPATIAL: 413-416, 2020
Link Prediction in Bibliographic Networks. Pantelis Chronis, Dimitrios Skoutas, Spiros Athanasiou, Spiros Skiadopoulos. ADBIS Workshops: 335-340, 2020
Exploring Citation Networks with Hybrid Tree Pattern Queries. Xiaoying Wu, Dimitri Theodoratos, Dimitrios Skoutas, Michael Lan. ADBIS Workshops: 311-322, 2020
Patients' Experiences Database After Hospital Discharge: Another Step in Improving Stroke Care. O.Konstantakopoulou et.al. In International Conference on Informatics, Management and Technology in Healthcare (ICIMTH 2020): 2020, 272:441-444,, 2020 Full text
Hierarchical Property Set Merging for SPARQL Query Optimization . Marios Meimaris, George Papastefanatos, P. Vassiliadis. In Proceedings of the 22nd International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data co-located with EDBT/ICDT 2020 Joint Conference, Copenhagen, Denmark, March 30, 2020 (Best Paper award), 2020 Full text
Open Science Observatory: Monitoring Open Science in Europe. George Papastefanatos, Elli Papadopoulou, Marios Meimaris, Antonis Lempesis, Stefania Martziou, Paolo Manghi, Natalia Manola. In ADBIS/TPDL/EDA Workshops 2020: 341-346, 2020 Full text
Sun4Patients Web Platform: Facilitating Long-Term Monitoring of Stroke Patients. George Papastefanatos, Stefanos Papastefanatos, Eleni Korompoki, Petros Galanis, Olympia Konstantakopoulou, Iliana Karagkouni, Parisis Gallos, George Ntaios, Kostas Vemmos, Olga Siskou. International Conference on Informatics, Management and Technology in Healthcare (ICIMTH 2020): 2020, 272:411-412, 2020 Full text
Big Data Visualization and Analytics: Future Research Challenges and Emerging Applications. G. L. Andrienko, N.V. Andrienko, S. Mark Drucker, J-D Fekete, D. Fisher, S. Idreos, T. Kraska, G. Li, K-L Ma, J.D. Mackinlay, A. Oulasvirta, T. Schreck, H. Schumann, M. Stonebraker, D. Auber, N. Bikakis, P. K. Chrysanthis, G. Papastefanatos, M.A. Sha. In 3rd International Workshop on Big Data Visual Exploration and Analytics (BigVis2020) co-located with EDBT/ICDT 2020 Joint Conference Copenhagen, Denmark, March 30, 2020, 2020 Full text
A Comparative Study of State-of-The-Art Linked Data Visualization Tools. Federico Desimoni, Nikos Bikakis, Laura Po, George Papastefanatos. In VOILA Workshop, jointly with ISWC 2020, 2020 Full text
Recommendations as Graph Explorations. M. Kyriakidi, G. Koutrika, Y. Ioannidis. 14th ACM Conference on Recommender Systems (RecSys), virtual, pp. 289-298, September 2020, 2020
Analysis of Database Search Systems with THOR. Theofilos Belmpas, Orest Gkini, Georgia Koutrika. SIGMOD Conference 2020: 2681-2684 , 2020
A Synopses Data Engine for Interactive Extreme-Scale Analytics. Antonis Kontaxakis, Nikos Giatrakos, Antonios Deligiannakis. ACM CIKM, 2020
INforE: Interactive Cross-platform Analytics for Everyone. Nikos Giatrakos, David Arnu, Theodoros Bitsakis, Antonios Deligiannakis, Minos N. Garofalakis, Ralf Klinkenberg, Aris Konidaris, Antonis Kontaxakis, Yannis Kotidis, Vasilis Samoladas, Alkis Simitsis, George Stamatakis, Fabian Temme, et al.. ACM CIKM, 2020 Full text
ArtSim: Improved estimation of current impact for recent articles. Serafeim Chatzopoulos, Thanasis Vergoulis, Ilias Kanellos, Theodore Dalamagas, Christos Tryfonopoulos. AIMinScience 2020, 2020 Full text
VeTo: Expert Set Expansion in Academia. Thanasis Vergoulis, Serafeim Chatzopoulos, Theodore Dalamagas, Christos Tryfonopoulos. TPDL 2020, 2020 Full text
Efficient Calculation of Empirical P-values for AssociationTesting of Binary Classifications. Kostis Zagganas, Thanasis Vergoulis, Spiros Skiadopoulos, Theodore Dalamagas. SSDBM 2020, 2020 Full text
Similarity search over enriched geospatial data. Kostas Patroumpas, Dimitrios Skoutas. Proceedings of the 6th International ACM SIGMOD Workshop on Managing and Mining Enriched Geo-Spatial Data (GeoRich 2020), 2020 Full text
Optimizing Vessel Trajectory Compression. Giannis Fikioris, Kostas Patroumpas, Alexander Artikis. 2nd Maritime Big Data Workshop (MBDW), 2020 Full text
A Parallel and Distributed Approach for Diversified Top-k Best Region Search . Hamid Shahrivari, Matthaios Olma, Odysseas Papapetrou, Dimitrios Skoutas, Anastasia Ailamaki. Proceedings of the 23rd International Conference on Extending Database Technology (EDBT 2020), 2020 Full text
JedAI3: beyond batch, blocking-based Entity Resolution . George Papadakis, Leonidas Tsekouras, Emmanouil Thanos, Nikiforos Pittaras, Giovanni Simonini, Dimitrios Skoutas, Paul Isaris, George Giannakopoulos, Themis Palpanas, Manolis Koubarakis. Proceedings of the 23rd International Conference on Extending Database Technology (EDBT 2020), 2020 Full text
Introducing EBRAINS: European infrastructure for brain research . Wouter Klijn, Sandra Diaz, Sebastian Spreizer, Thomas Lippert, Spiros Athanasiou, Yannis Ioannidis, Abigail Morrison, Evdokia Mailli, Katrin Amunts, Jan G. Bjaalie. Organization for Computational Neuroscienses Conference (CNS 2020), 2020 Full text

2019

Learning domain specific models for toponym interlinking. Vassilis Kaffes, Giorgos Giannopoulos, Nikos Karagiannakis, Nontas Tsakonas. Proceedings of the 27th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems. November 2019. Pages 504–507, 2019 Full text
LGM-PC: A tool for POI classification on QGIS. Giorgos Eftaxias, Nontas Tsakonas, Giorgos Giannopoulos, Nikos Kostagiolas, Andreas Syngros, Dimitrios Skoutas. SSTD: 182-185, 2019
Classifying points of interest with minimum metadata. Giorgos Giannopoulos, Konstantinos Alexis, Nikos Kostagiolas, Dimitrios Skoutas. LocalRec@SIGSPATIAL: 1:1-1:4, 2019
Mv-Index: An Efficient Index for Graph-Query Containment. Theofilos Mailis, Yannis Kotidis, Vaggelis Nikolopoulos, Evgeny Kharlamov, Ian Horrocks, Yannis E. Ioannidis. ISWC (Satellites): 193-196, 2019
An Efficient Index for RDF Query Containment. Theofilos Mailis, Yannis Kotidis, Vaggelis Nikolopoulos, Evgeny Kharlamov, Ian Horrocks, Yannis E. Ioannidis. SIGMOD Conference: 1499-1516, 2019
Learning Domain Driven and Semantically Enriched Embeddings for POI Classification. Giorgos Giannopoulos, Marios Meimaris. In SSTD 2019, 2019 Full text
Visualizing Implicit RDF Schema with the Help of Embeddings. Marios Meimaris. In EDBT/ICDT Workshops, 2019 Full text
Figuring out the User in a Few Steps: Bayesian Multifidelity Active Search with Cokriging. Nikita Klyuchnikov, Davide Mottin, Georgia Koutrika, Emmanuel Müller, Panagiotis Karras. KDD 2019: 686-695, 2019
Merging RDF Characteristic Sets to Optimize SPARQL Queries. Marios Meimaris, George Papastefanatos. 17th Hellenic Data Management Symposium (HDMS’19), 2019
Merging RDF Characteristic Sets to Optimize SPARQL Queries (Extended Abstract). Marios Meimaris, George Papastefanatos. 13th International Workshop on Information Search, Integration, and Personalization, 9-10 May, 2019, Heraklion, 2019 Full text
RawVis: Visual Exploration over Raw Data. Nikos Bikakis, Stavros Maroulis, George Papastefanatos, Panos Vassiliadis. 17th Hellenic Data Management Symposium (HDMS’19), 2019
The Geospatial Database of the VR-Park System for Promoting and Touring Urban Parks. K. Pontikakos, Myrto S. Barda, Konstantinos I. Kotsopoulos, Yannis Stavrakas, Konstantinos P. Ferentinos. 3rd Conference on Geographical Information Systems and Spatial Analytics in Agriculture and Environment, Agricultural University of Athens, 2019
Automatic Ground Truth Dataset Creation for Fake News Detection in Social Media. Danae Pla Karidi, Harry Nakos, and Yannis Stavrakas. 20th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2019), Manchester, 14-16 November 2019, 2019
BIP! Finder: Facilitating scientific literature search by exploiting impact-based ranking. Thanasis Vergoulis, Serafeim Chatzopoulos, Ilias Kanellos, Panagiotis Deligiannis, Christos Tryfonopoulos, Theodore Dalamagas. CIKM 2019, 2019 Full text
A study on the readability of scientific publications. Thanasis Vergoulis, Ilias Kanellos, Anargiros Tzerefos, Serafeim Chatzopoulos, Theodore Dalamagas, Spiros Skiadopoulos. TPDL 2019, 2019 Full text
SciTo trends: visualising scientific topic trends. Serafeim Chatzopoulos, Panagiotis Deligiannis, Thanasis Vergoulis, Ilias Kanellos, Christos Tryfonopoulos, Theodore Dalamagas. TPDL 2019, 2019 Full text
ARGO: A Big Data Framework for Online Trajectory Prediction. Petros Petrou, Panagiotis Nikitopoulos, Panagiotis Tampakis, Apostolos Glenis, Nikolaos Koutroumanis, Georgios M. Santipantakis, Kostas Patroumpas, Akrivi Vlachou, Harris V. Georgiou, Eva Chondrodima, Christos Doulkeridis, Nikos Pelekis, Gennady L. A. Proceedings of the 16th International Symposium on Spatial and Temporal Databases (SSTD 2019), 2019 Full text
Efficiently Computing Homomorphic Matches of Hybrid Pattern Queries on Large Graphs . Xiaoying Wu, Dimitri Theodoratos, Dimitrios Skoutas, Michael Lan. 21st International Conference on Big Data Analytics and Knowledge Discovery (DaWaK 2019), 2019 Full text
Local Pair and Bundle Discovery over Co-Evolving Time Series . Georgios Chatzigeorgakidis, Dimitrios Skoutas, Kostas Patroumpas, Themis Palpanas, Spiros Athanasiou, Spiros Skiadopoulos. Proceedings of the 16th International Symposium on Spatial and Temporal Databases (SSTD 2019), 2019 Full text
Near-Neighbor Preserving Dimension Reduction for Doubling Subsets of l1. . I.Z. Emiris, Vasilis Margonis, Ioannis Psarros. APPROX-RANDOM 2019: 47:1-47:13, 2019 Full text
Voronoi Diagram of Orthogonal Polyhedra in Two and Three Dimensions. I.Z. Emiris, Christina Katsamaki. SEA² 2019: 1-20 , 2019 Full text
Automatic Clustering by Detecting Significant Density Dips in Multiple Dimensions. Pantelis Chronis, Spiros Athanasiou, Spiros Skiadopoulos. 19th IEEE International Conference on Data Mining (ICDM 2019), 2019 Full text
Local Similarity Search on Geolocated Time Series Using Hybrid Indexing. Georgios Chatzigeorgakidis, Dimitrios Skoutas, Kostas Patroumpas, Themis Palpanas, Spiros Athanasiou, Spiros Skiadopoulos. 26th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL 2019), 2019, 2019 Full text
Exposing Points of Interest as Linked Geospatial Data. Kostas Patroumpas, Dimitrios Skoutas, Georgios Mandilaras, Giorgos Giannopoulos, Spiros Athanasiou. Symposium on Spatial and Temporal Databases (SSTD 2019), 2019 Full text
Trajectory-aware Load Adaption for Continuous Traffic Analytics. Kostas Patroumpas, Serafeim Papadias. Symposium on Spatial and Temporal Databases (SSTD 2019), 2019 Full text
HEAL-Link and HELIX open collaboration to facilitate and promote scholarly communication through Open Access and engage Research Infrastructures in Open Science. Leonidas Pispiringas, Spiros Athanasiou, Zisis Simaioforidis, Dimitrios Skoutas . 85th IFLA General Conference and Assembly, World Library and Information Congress (IFLA WLIC 2019), 2019 Full text
Evaluating Mixed Patterns on Large Data Graphs Using Bitmap Views. Xiaoying Wu, Dimitri Theodoratos, Dimitrios Skoutas, Michael Lan . 24th International Conference on Database Systems for Advanced Applications (DASFAA) 2019: 553-570, 2019 Full text
Big POI data integration with Linked Data technologies. Spiros Athanasiou, Giorgos Giannopoulos, Damien Graux, Nikos Karagiannakis, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Kostas Patroumpas, Mohamed Ahmed Sherif, Dimitrios Skoutas . 22nd International Conference on Extending Database Technology (EDBT) 2019: 477-488, 2019 Full text
SLIPO: Large-Scale Data Integration for Points of Interest. Spiros Athanasiou, Michail Alexakis, Giorgos Giannopoulos, Nikos Karagiannakis, Yannis Kouvaras, Pantelis Mitropoulos, Kostas Patroumpas, Dimitrios Skoutas . 22nd International Conference on Extending Database Technology (EDBT) 2019: 574-577, 2019 Full text
Query driven Entity Resolution in Data Lakes. Giorgos Alexiou, G. Papastefanatos. 13th International Workshop on Information Search, Integration, and Personalization, 9-10 May, 2019, Heraklion, 2019 Full text
Interactive text analysis and information extraction. Tasos Giannakopoulos, Yannis Foufoulas, Harry Dimitropoulos and Natalia Manola. In Italian Research Conference on Digital Libraries (pp. 340-350). Springer, Cham, 2019 Full text
Neural networks for cryptocurrency evaluation and price fluctuation forecasting. E. Christoforou, I.Z. Emiris, and A. Florakis. In Proc. MARBLE: Intern. Conf. Math. Research for Blockchain Economy, LNCS. Springer, 2019, 2019

2018

Modeling and Exploiting Goal and Action Associations for Recommendations. Dimitra Papadimitriou, Yannis Velegrakis, Georgia Koutrika. EDBT 2018: 409-420, 2018
Finding Related Forum Posts through Content Similarity over Intention-Based Segmentation . Dimitra Papadimitriou, Georgia Koutrika, Yannis Velegrakis, John Mylopoulos. ICDE 2018: 1805-1806 , 2018
Products of euclidean metrics and applications to proximity questions among curves. I.Z. Emiris and I. Psarros. Annual Symp. on Computational Geometry (SoCG), pages 37:1–37:13, 2018 Full text
RawVis: Visual Exploration over Raw Data. N. Bikakis, S. Maroulis, G. Papastefanatos, P. Vassiliadis. In 22nd European Conference on Advances in Databases and Information Systems (ADBIS 2018), September 2-5, Budapest, Hungary, 2018 Full text
On the Maximal Number of Real Embeddings of Spatial Minimally Rigid Graphs. Evangelos Bartzos, Ioannis Z. Emiris, Jan Legerský, Elias Tsigaridas. In Proceedings of the 2018 ACM International Symposium on Symbolic and Algebraic Computation (ISSAC '18), Carlos Arreche (Ed.). ACM, New York, NY, USA, 55-62, 2018 Full text
Finding shortest keyword covering routes in road networks. Vassilis Kaffes, Alexandros Belesiotis, Dimitrios Skoutas, Spiros Skiadopoulos. 30th International Conference on Scientific and Statistical Database Management (SSDBM 2018), 2018 Full text
Selecting representative and diverse spatio-textual posts over sliding windows. Dimitris Sacharidis, Paras Mehta, Dimitrios Skoutas, Kostas Patroumpas, Agnès Voisard. 30th International Conference on Scientific and Statistical Database Management (SSDBM 2018), 2018 Full text
On-the-fly Mobility Event Detection over Aircraft Trajectories. Kostas Patroumpas, Nikos Pelekis, Yannis Theodoridis. 26th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL 2018), 2018 Full text
Scalable Hybrid Similarity Join over Geolocated Time Series . Giorgos Chatzigeorgakidis, Kostas Patroumpas, Dimitrios Skoutas, Spiros Athanasiou, and Spiros Skiadopoulos. 26th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL 2018), 2018 Full text
Efficient Progressive and Diversified Top-k Best Region Search. Dimitrios Skoutas, Dimitris Sacharidis, Kostas Patroumpas. 26th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL 2018), 2018 Full text
Unsupervised Disaggregation of Low Granularity Resource Consumption Time Series. Pantelis Chronis, Giorgos Giannopoulos, Spiros Athanasiou, and Spiros Skiadopoulos. The 22nd Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD 2018), 2018 Full text
Map-Based Visual Exploration of Geolocated Time Series . Giorgos Chatzigeorgakidis, Dimitrios Skoutas, Kostas Patroumpas, Spiros Athanasiou, and Spiros Skiadopoulos. BigVis EDBT/ICDT 2018, 2018 Full text

2017

Matrix Representations by Means of Interpolation. I.Z. Emiris, Christos Konaxis, I.S. Kotsireas, Clément Laroche. ACM ISSAC 2017: 149-156 , 2017 Full text
Content Recommendation for Viral Social Influence. Konstantinos Theocharidis , Manolis Terrovitis , Panagiotis Karras. SIGIR 2017: 565-574, 2017 Full text
Extraction of Embedded Queries via Static Analysis of Host Code. P. Manousis, A. Zarras, P. Vassiliadis, G. Papastefanatos. In 29th International Conference on Advanced Information Systems Engineering (CAiSE'17), 12-16 June 2017, Essen, Germany, 2017 Full text
Continuous Summarization of Streaming Spatio-Textual Posts. Dimitris Sacharidis, Paras Mehta, Dimitrios Skoutas, Kostas Patroumpas, Agnès Voisard. 25th ACM International Conference on Advances in Geographic Information Systems (SIGSPATIAL 2017), 2017 Full text
Probabilistic k-Nearest Neighbor Monitoring of Moving Gaussians. Kostas Patroumpas, Christos Koutras. 29th International Conference on Scientific and Statistical Database Management (SSDBM 2017), 2017 Full text
K-clique-graphs for Dense Subgraph Discovery. Giannis Nikolentzos, Polykarpos Meladianos, Yannis Stavrakas, and Michalis Vazirgiannis. The European Conference on Machine Learning & Principles and Practice of Knowledge Discovery in Databases (ECML-PKDD 2017), Skopje, 18-22 September, 2017
Shortest-Path Graph Kernels for Document Similarity. Giannis Nikolentzos, Polykarpos Meladianos, Francois Rousseau, Yannis Stavrakas, and Michalis Vazirgiannis. SIGDAT Conference on Empirical Methods in Natural Language Processing (EMNLP 2017), Copenhagen-Denmark, September 9-11, 2017
CitySense: Retrieving, Visualizing and Combining Datasets on Urban Areas. Danae Pla Karidi, Harry Nakos, Alexandros Efentakis, and Yannis Stavrakas. The Ninth International Conference on Advances in Databases, Knowledge, and Data Applications (DBKDA 2017), Barcelona-Spain, May 21-25, 2017
Multivariate Gaussian Document Representation from Word Embeddings for Text Categorization. Giannis Nikolentzos, Polykarpos Meladianos, Francois Rousseau, Yannis Stavrakas, and Michalis Vazirgiannis. 15th European Chapter of the Association for Computational Linguistics Conference (EACL 2017), Valencia-Spain, April 3-7, 2017
μTOP: Spatio-Temporal Detection and Summarization of Locally Trending Topics in Microblog Posts. Paras Mehta, Manuel Kotlarski, Dimitrios Skoutas, Dimitris Sacharidis, Kostas Patroumpas, Agnès Voisard. Proceedings of the 20th International Conference on Extending Database Technology (EDBT) 2017: 558-561, 2017 Full text
Finding Socio-Textual Associations Among Locations. Paras Mehta, Dimitris Sacharidis, Dimitrios Skoutas, Agnès Voisard. Proceedings of the 20th International Conference on Extending Database Technology (EDBT) 2017: 120-131, 2017 Full text
Indexing Geolocated Time Series Data. Georgios Chatzigeorgakidis, Dimitrios Skoutas, Kostas Patroumpas, Spiros Athanasiou, Spiros Skiadopoulos. 25th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL 2017), 2017 Full text
Effects of real-time shower feedback on showering behaviour and psychological determinants – a pilot study. Katharina Eckartz, Anja Peters, Spiros Athanasiou, Aaron Burton, Ignacio Casals del Busto, Alejandro Garcia Monteagudo. International Conference on Human Dimension of Environmental Risks, 2017 Full text
Introducing Solon: A Semantic Platform for Managing Legal Sources. Marios Koniaris, George Papastefanatos, Marios Meimaris, Giorgos Alexiou. International Conference on Theory and Practice of Digital Libraries (TPDL 2017) (pp. 603-607). Springer, Cham., 2017 Full text
Extended Characteristic Sets: Graph Indexing for SPARQL Query Optimization. Marios Meimaris, George Papastefanatos, Nikos Mamoulis, Ioannis Anagnostopoulos. Data Engineering (ICDE), 2017 IEEE 33rd International Conference on, pp. 497-508. IEEE, 2017, 2017 Full text
Distance-Based Triple Reordering for SPARQL Query Optimization. Marios Meimaris, George Papastefanatos. Data Engineering (ICDE), 2017 IEEE 33rd International Conference on, pp. 1559-1562. IEEE, 2017, 2017 Full text

2016

Towards Automatic Structuring and Semantic Indexing of Legal Documents. M. Koniaris, G. Papastefanatos, Y. Vassiliou. In 20th Panhellenic Conference on Informatics (PCI’16), Patras Greece, 10 – 12 November 2016, 2016 Full text
graphVizdb: A Scalable Platform for Interactive Large Graph Visualization. N. Bikakis, J. Liagouris, M. Krommyda, G. Papastefanatos, T.Sellis. In 32nd IEEE International Conference on Data Engineering(ICDE 2016) - Demo, Helsinki, Finland, May 2016, 2016 Full text
A Flexible Framework for Understanding the Dynamics of Evolving RDF Datasets. Yannis Roussakis, Ioannis Chrysakis, Kostas Stefanidis, Giorgos Flouris and Yannis Stavrakas. The 14th Hellenic Data Management Symposium (HDMS 2016), Athens-Greece, July 28-29, 2016
Intelligence Analysis of Tay Twitter Bot. Vinayak Mathur, Yannis Stavrakas, and Sanjay Singh. IEEE 2nd International Conference on Contemporary Computing and Informatics (IC3I 2016), Noida-India, 14-17 December, 2016
Coverage and diversity aware top-k query for spatio-temporal posts. Paras Mehta, Dimitrios Skoutas, Dimitris Sacharidis, Agnès Voisard. Proceedings of the 24th ACM International Conference on Advances in Geographic Information Systems (SIGSPATIAL) 2016: 37:1-37:10, 2016 Full text
Open Issues and Challenges on Time Series Forecasting for Water Consumption. Pantelis Chronis, Giorgos Giannopoulos, Spiros Athanasiou. EDBT/ICDT Workshops 2016, 2016 Full text
Learning to Classify Spatiotextual Entities in Maps. Giorgos Giannopoulos, Nikos Karagiannakis, Dimitrios Skoutas, Spiros Athanasiou. Extending Semantic Web Conference 2016 (ESWC 2016), 2016 Full text
Keyword-based retrieval of frequent location sets in geotagged photo trails. Paras Mehta, Dimitris Sacharidis, Dimitrios Skoutas, Agnès Voisard. 8th International Conference on Web Science (WebSci 2016), 2016 Full text
Similarity Search on Spatio-Textual Point Sets. Christodoulos Efstathiades, Alexandros Belesiotis, Dimitrios Skoutas, Dieter Pfoser. 19th International Conference on Extending Database Technology (EDBT 2016), 2016 Full text
Identifying and Describing Streets of Interest. Dimitrios Skoutas, Dimitris Sacharidis, Kostas Stamatoukos. 19th International Conference on Extending Database Technology (EDBT 2016), 2016 Full text
OpenAIRE LOD services: Scholarly Communication Data as Linked Data. Giorgos Alexiou, Sahar Vahdati, Christoph Lange, George Papastefanatos, Steffen Lohmann. Semantics, Analytics, Visualisation: Enhancing Scholarly Data Workshop (SAVE-SD 2016) co-located with the 25th International World Wide Web Conference (WWW 2016) April 11, 2016 - Montreal, Canada, 2016 Full text
“Just the facts” with PALOMAR: Detecting protest events in media outlets and Twitter. Konstantina Papanikolaou, Haris Papageorgiou, Nikos Papasarantopoulos, Theoni Stathopoulou, George Papastefanatos. First “Social Media in the Newsroom” workshop (SMnews2016), co-located with the International Conference on Web and Social Media (ICWSM 2016), Cologne, Germany, 17th May, 2016., 2016 Full text
The EvoGen Benchmark Suite for Evolving RDF Data. Marios Meimaris, George Papastefanatos. 2nd Workshop on Managing the Evolution and Preservation of the Data Web (MEPDaW 2016) co-located with 13th European Semantic Web Conference (ESWC 2016), Heraklion, Crete, Greece, May 30th, 2016, 2016 Full text
Enabling persistent identification of groups of duplicates in data aggregators. Giorgos Alexiou, Marios Meimaris, George Papastefanatos. 7th International Workshop on Data Engineering meets the Semantic Web (hosted by 32nd International Conference on Data Engineering), May 16-20, 2016, Helsinki, Finland , 2016 Full text
Scaling Entity Resolution to Large, Heterogeneous Data with Enhanced Meta-blocking. George Papadakis, George Papastefanatos, Themis Palpanas, Manolis Koubarakis. 19th International Conference on Extending Database Technology, EDBT 2016, Bordeaux, France, March 15-16, 2016 Full text
A Personalized Tweet Recommendation Approach Based on Concept Graphs. Danae Pla Karidi, Yannis Stavrakas, Yannis Vassiliou. The 13th IEEE International Conference on Ubiquitous Intelligence and Computing (UIC 2016). Toulouse, France, July 2016., 2016
From User Graph to Topics Graph. Danae Pla Karidi. Data Engineering Workshops (ICDEW), 32nd IEEE International Conference on Data Engineering – ICDE 2016, 2016
Exploration and Visualization in the Web of Big Linked Data: A Survey of the State of the Art. Nikos Bikakis and Timos Sellis. 6th International Workshop on Linked Web Data Management (LWDM), 2016 Full text
Double Chain-Star: an RDF indexing scheme for fast processing of SPARQL joins. Marios Meimaris, George Papastefanatos. 19th International Conference on Extending Database Technology, EDBT 2016, Bordeaux, France, March 15-16, 2016 Full text
Efficient Computation of Containment and Complementarity in RDF Data Cubes. Marios Meimaris, George Papastefanatos, Panos Vassiliadis, Ioannis Anagnostopoulos. 19th International Conference on Extending Database Technology, EDBT 2016, Bordeaux, France, March 15-16, 2016 Full text
EvoGen: a Generator for Synthetic Versioned RDF. Marios Meimaris . In DIACHRON 2016 (collocated with EDBT 2016), 2016 Full text
A Language for Defining and Detecting Interrelated Complex Changes on RDF(S) Knowledge Bases. Theodora Galani, George Papastefanatos, Yannis Stavrakas. In 18th International Conference on Enterprise Information Systems (ICEIS 2016), 25-28 April 2016, 2016
Scalable Public Transportation Queries on the Database. Alexandros Efentakis. 19th International Conference on Extending DatabaseTechnology, (EDBT 2016), 2016 Full text

2015

MoDisSENSE: A Distributed Spatio-Temporal and Textual Processing Platform for Social Networking Services. Ioannis Mytilinis, Ioannis Giannakopoulos, Ioannis Konstantinou, Katerina Doka, Dimitrios Tsitsigkos, Manolis Terrovitis, Lampros Giampouras, Nectarios Koziris. SIGMOD Conference 2015: 895-900, 2015 Full text
Parallel meta-blocking: Realizing scalable entity resolution over large, heterogeneous data. Vasilis Efthymiou, George Papadakis, George Papastefanatos, Kostas Stefanidis, Themis Palpanas. IEEE International Conference on Big Data (IEEE BigData 2015), Oct 29 - Nov 01, 2015 @ Santa Clara, CA, USA, 2015 Full text
RDF Keyword Search based on Keywords-To-SPARQL Translation. Katerina Gkirtzou, George Papastefanatos, Theodore Dalamagas. 1st International Workshop on Novel Web Search Interfaces and Systems, NWSearch 2015 (with CIKM15), Melbourne, Australia, October 23, 2015. , 2015 Full text
An Archiving System for Managing Evolution in the Data Web. Marios Meimaris, George Papastefanatos, Christos Pateritsas. MEPDaW First Diachron Workshop (hosted by ESWC 2015), June 2015 , 2015 Full text
MirPub v2: Towards Ranking and Refining miRNA Publication Search Results. Ilias Kanellos, Vasiliki Vlachokyriakou, Thanasis Vergoulis, Georgios Georgakilas, Yannis Vassiliou, Artemis K. Hatzigeorgiou, Theodore Dalamagas. TPDL 15, 2015 Full text
TarMiner: automatic extraction of miRNA targets from literature. Rodothea-Myrsini Tsoupidi, Ilias Kanellos, Thanasis Vergoulis, Ioannis S Vlachos, Artemis G Hatzigeorgiou, Theodore Dalamagas. SSDBM 2015, article No 12, 2015 Full text
Towards Scalable Visual Exploration of Very Large RDF Graphs. Nikos Bikakis, John Liagouris, Maria Kromida, George Papastefanatos, and Timos Sellis. 12th Extended Semantic Web Conference (ESWC 2015), 2015 Full text
RDF Resource Search and Exploration with LinkZoo. Marios Meimaris, George Alexiou, Katerina Gkirtzou, George Papastefanatos, Theodore Dalamagas. In DATA 2015 pp. 232-239, 2015 Full text
TwitterViz: Visualizing and Exploring the Twittersphere. Christodoulos Efstathiades, Helias Antoniou, Dimitrios Skoutas, Yannis Vassiliou. Symposium on Spatial and Temporal Databases (SSTD) 2015 (Demo track), 2015 Full text
FAGI-gis: A Tool for Fusing Geospatial RDF Data. Giorgos Giannopoulos, Nick Vitsas, Nikos Karagiannakis, Dimitrios Skoutas, Spiros Athanasiou. The 12th Extended Semantic Web Conference, Demo Track, 2015, 2015 Full text
OSMRec tool for automatic recommendation of categories on spatial entities in OpenStreetMap. Giorgos Giannopoulos, Nikos Karagiannakis, Dimitrios Skoutas, Spiros Athanasiou. 9th ACM Conference on Recommender Systems, Demo and Posters Track, 2015 (RecSys 2015), 2015 Full text
Automatic Recommendations of Categories for Geospatial Entities. Giorgos Giannopoulos, Nikos Karagiannakis, Dimitrios Skoutas, Spiros Athanasiou. ACM RecSys Workshop on Location-Aware Recommendations (LocalRec 2015), 2015 Full text
A MapReduce Based k-NN Joins Probabilistic Classifier. Georgios Chatzigeorgakidis, Sophia Karagiorgou, Spiros Athanasiou, and Spiros Skiadopoulos. 2105 IEEE International Conference on Big Data (IEEE BigData 2015), 2015 Full text
Spatio-Temporal Keyword Queries for Moving Objects. Paras Mehta, Dimitrios Skoutas, Agnès Voisard. ACM SIGSPATIAL 2015, 2015 Full text
COLD. Revisiting Hub Labels on the Database for Large-Scale Graphs. Alexandros Efentakis, Christodoulos Efstathiades, Dieter Pfoser. 14th International Symposium on Spatial and Temporal Databases (SSTD 2015), 2015 Full text
A Flexible Framework for Understanding the Dynamics of Evolving RDF Datasets. Yannis Roussakis, Ioannis Chrysakis, Kostas Stefanidis, Giorgos Flouris and Yannis Stavrakas. The 14th International Semantic Web Conference (ISWC 2015), October 11-15, 2015, 2015
Degeneracy-based Real-Time Sub-Event Detection in Twitter Stream. Polykarpos Meladianos, Giannis Nikolentzos, Francois Rousseau, Yannis Stavrakas, and Michalis Vazirgiannis. The 9TH International AAAI Conference on Web and Social Media (ICWSM-15), May 2015, 2015 Full text
Supporting Complex Changes in RDF(S) Knowledge Bases. Theodora Galani, Yannis Stavrakas, George Papastefanatos, and Giorgos Flouris. MEPDaW First Diachron Workshop (hosted by ESWC 2015), June 2015, 2015 Full text
Keywords-To-SPARQL translation for RDF data search and exploration. Katerina Gkirtzou, Kostis Karozos, Vassilis Vassalos and Theodore Dalamagas. TPDL 2015, 2015
SALT. A Unified Framework for All Shortest-Path Query Variants on Road Networks. Alexandros Efentakis, Dieter Pfoser, Yannis Vassiliou . 14th International Symposium on Experimental Algorithms (SEA 2015), 2015 Full text
Towards Open Big Geospatial Data for geodata.gov.gr. Angelos Tzotsos, Michail Alexakis and Spiros Athanasiou. FOSS4G-Europe 2015, 2015 Full text
Spatio-temporal Big Data: the rasdaman approach in the context of the PublicaMundi project. Mircea Alexandru Dumitru, Vlad Merticariu, Angelos Tzotsos, Michail Alexakis and Spiros Athanasiou. FOSS4G-Europe 2015, 2015 Full text
Exposing INSPIRE on the Semantic Web. Kostas Patroumpas, Spiros Athanasiou. INSPIRE-Geospatial World Forum 2015 , 2015 Full text
PublicaMundi, an FP7 project aiming to make open geospatial data easier to publish, view, and reuse. Thodoris Vakkas, Georgia Papadaki, Alexandros Theleritis, Spiros Athanasiou,. INSPIRE-Geospatial World Forum 2015 , 2015 Full text
TripleGeo-CSW: A Middleware for Exposing Geospatial Catalogue Services on the Semantic Web. Spiros Athanasiou, Nikos Georgomanolis, Kostas Patroumpas, Michail Alexakis, and Thodoris Stratiotis. 5th International Workshop on Linked Web Data Management (LWDM), Brussels, 2015, 2015 Full text
Leveraging Web 2.0 for Informed Real-Estate Services. Papantoniou Katerina, Athanasiadis Marios-Lazaros, Fundulaki Irini, Georgis Christos, Stavrakas Yannis, Troullinos Michalis, Tsitsanis Anastasios. 15th International Conference on Knowledge Extraction and Management (EGC 2015), Luxembourg, 27-30 January, 2015 Full text

2014

Continuous monitoring of nearest trajectories. Dimitris Sacharidis, Dimitrios Skoutas, Georgios Skoumas. 22nd ACM International Conference on Advances in Geographic Information Systems (SIGSPATIAL 2014), 2014 Full text
Airport Context Analytics. Eli Katsiri, George Papastefanatos, Manolis Terrovitis, Timos Sellis. In 8th International Conference on Web Reasoning and Rule Systems, (RR2014), September 2014, Athens, Greece., 2014 Full text
Towards a methodology for publishing Linked Open Statistical Data. Irene Petrou, Marios Meimaris, George Papastefanatos. Samos 2014 Summit on ICT-enabled Governance, June 30 – July 5, 2014, Samos, Greece. , 2014 Full text
A Study on External Memory Scan-based Skyline Algorithms. Nikos Bikakis, Dimitris Sacharidis, Timos Sellis. 25th International Conference on Database and Expert Systems Applications (DEXA '14), 2014 Full text
Regionally Influential Users in Location-Aware Social Networks. Panagiotis Bouros, Dimitris Sacharidis, Nikos Bikakis. 22nd ACM International Conference on Advances in Geographic Information Systems (ACM GIS SIGSPATIAL'14), 2014 Full text
Supporting SPARQL Update Queries in RDF-XML Integration. Bikakis Nikos, Tsinaraki Chrisa, Stavrakantonakis Ioannis, Christodoulakis Stavros. 13th International Semantic Web Conference (ISWC '14), 2014 Full text
Geosemantic Network-of-Interest Construction Using Social Media Data. Sophia Karagiorgou, Dieter Pfoser, Dimitrios Skoutas. Geographic Information Science, 2014 Full text
Extraction, integration and exploration of crowdsourced geospatial content from multiple web sources. George Lamprianidis, Dimitrios Skoutas, George Papatheodorou, Dieter Pfoser. 22nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (Demo track), 2014 Full text
Extraction, integration and analysis of crowdsourced points of interest from multiple web sources. George Lamprianidis, Dimitrios Skoutas, George Papatheodorou, Dieter Pfoser. 3rd ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information, GeoCrowd 2014, 2014 Full text
Diversifying Microblog Posts. Marios Koniaris, Giorgos Giannopoulos, Timos Sellis, Yiannis Vasileiou. The 15th International Conference on Web Information Systems Engineering, 2014, 2014 Full text
Greek Geospatial Linked Data: geodata.gov.gr/sparql. Kostas Patroumpas, Nikos Georgomanolis, Thodoris Stratiotis, Michail Alexakis, Spiros Athanasiou. 8th Greek HellasGIs Conference, Athens, Greece, December, 2014, 2014 Full text
The GeoKnow Generator: Managing Geospatial Data in the Linked Data Web. Jon Jay Le Grange, Jens Lehmann, Spiros Athanasiou, Alejandra Garcia Rojas, Giorgos Giannopoulos, Daniel Hladky, Robert Isele, Axel-Cyrille Ngonga Ngomo, Mohamed Sherif, Claus Stadler. Linking Geospatial Data Workshop, 2014, 2014 Full text
Publishing Diachronic Life Science Linked Data. Katerina Gkirtzou, Thanasis Vergoulis, Artemis Hatzigeorgiou, Timos Sellis, Theodore Dalamagas. SWAT4LS 2014, 2014 Full text
Using Context Information for Providing Innovative Real-Estate Services. Stavrakas Yannis, Fundulaki Irini, Tsitsanis Anastasios, Avdelas Pavlos. 8th Greek HellasGIs Conference, Athens, Greece, December, 2014
FAGI-tr: A tool for aligning geospatial RDF vocabularies. Giorgos Giannopoulos, Thomas Maroulis, Dimitrios Skoutas, Nikos Karagiannakis, Spiros Athanasiou. The 11th Extended Semantic Web Conference, Demo Track, 2014 (ESWC 2014), 2014 Full text
TripleGeo: an ETL Tool for Transforming Geospatial Data into RDF Triples. Kostas Patroumpas, Michalis Alexakis, Giorgos Giannopoulos, Spiros Athanasiou. EDBT/ICDT Workshops 2014: 275-278, 2014 Full text
FAGI: A framework for fusing geospatial RDF data. Giorgos Giannopoulos, Dimitrios Skoutas, Thomas Maroulis, Nikos Karagiannakis, Spiros Athanasiou. The 13th International Conference on Ontologies, DataBases, and Applications of Semantics, 2014 (ODBASE 2014), 2014 Full text
Towards GeoSpatial Semantic Data Management: Strengths, Weaknesses, and Challenges Ahead. Kostas Patroumpas, Giorgos Giannopoulos, Spiros Athanasiou. ACM SIGSPATIAL 2014, 2014 Full text
PublicaMundi: Scalable and Reusable Open Geospatial Data. Spiros Athanasiou. FOSS4G-Europe 2014, 2014 Full text
Online Analysis of Remote Sensing Data for Agricultural Applications. Athanasios Karmas, Konstantinos Karantzalos, Spiros Athanasiou. FOSS4G-Europe 2014, 2014 Full text
DAIAD: from droplets of participation to streams of knowledge. Spiros Athanasiou, Thorsten Staake, Thomas Stiefmeier, Christian Sartorius, Jacob Tompkins, Efthymios Lytras. Intelligent Distribution for Efficient and Affordable Supplies, Water IDEAS 2014, 2014 Full text
DAIAD: Open Water Monitoring. Spiros Athanasiou, Thorsten Staake, Thomas Stiefmeier, Christian Sartorius, Jacob Tompkins, Efthymios Lytras. 16th Conference on Water Distribution System Analysis, WDSA2014, 2014 Full text
rdf:SynopsViz: A Framework for Hierarchical Linked Data Visual Exploration and Analysis. Nikos Bikakis, Melina Skourla, George Papastefanatos. 11th Extended Semantic Web Conference (ESWC2014) – Demo Track, Anissaras, Crete, Greece, May 2014, 2014 Full text
LinkZoo: A linked data platform for collaborative management of heterogeneous resources. Marios Meimaris, George Alexiou, George Papastefanatos. 11th Extended Semantic Web Conference (ESWC2014) – Demo Track, Anissaras, Crete, Greece, May 2014, 2014 Full text
Αυτοματοποίηση της Προσαρμογής Εξελισσόμενων Οικοσυστημάτων Δεδομένων. P. Manousis, P.Vassiliadis, G. Papastefanatos. 12ο Ελληνικό Συμπόσιο Διαχείρισης Δεδομένων (ΕΣΔΔ’14), Αθήνα, Ιούλιος 2014., 2014
GRASP. Extending Graph Separators for the Single-Source Shortest-Path Problem. Alexandros Efentakis, Dieter Pfoser. 22nd Annual European Symposium on Algorithms (ESA 2014), 2014 Full text
Crowdsourcing turning restrictions for OpenStreetMap. Alexandros Efentakis, Sotiris Brakatsoulas, Nikos Grivas, Dieter Pfoser. Mining Urban Data Workshop, 2014 Full text
Towards a Framework for Managing Evolving Information Resources on the Data Web. Marios Meimaris, George Papastefanatos, Christos Pateritsas, Theodora Galani, Yannis Stavrakas. 1st International Workshop on Dataset PROFIling & fEderated Search for Linked Data (PROFILES) 2014, collocated with ESWC 2014, electronic proceedings in CEUR-WS vol. 1151, 2014 Full text
Containment and Complementarity Relationships in Multidimensional Linked Open Data. Marios Meimaris, George Papastefanatos. In Semantic Statistics (SEMSTATS) 2014, collocated with ISWC 2014, electronic proceedings in CEUR-WS.org, 2014 Full text
Insights in Global Public Spending. Michalis Vafopoulos, Marios Meimaris, Jose Maria Alvarez Rodriguez, Ioannis Xidias, Michalis Klonaras, Giorgos Vafeiadis. In I-SEMANTICS 2013 Proceedings of the 9th International Conference on Semantic Systems, pp. 135-139, 2014 Full text
MR-microT: A MapReduce-based MicroRNA Target Prediction Method. Ilias Kanellos, Thanasis Vergoulis, Dimitris Sacharidis, Theodore Dalamagas, Artemis Hatzigeorgiou, Stelios Sartzetakis, Timos Sellis. SSDBM ’14, Article No. 47, 2014 Full text
Reconciling Multiple Categorical Preferences with Double Pareto-based Aggregation. Nikos Bikakis, Karim Benouaret, Dimitris Sacharidis. 19th International Conference on Database Systems for Advanced Applications (DASFAA '14), 2014 Full text

2013

MXML Path-based Storage and Ordered-based Context Manipulation. Nikolaos Fousteris, Manolis Gergatsoulis, and Yannis Stavrakas. 24th International Conference on Database and Expert Systems Applications (DEXA 2013), Prague, Czech Republic, August 26-29, 2013. Proceedings, Part II, Lecture Notes in Computer Science, Vol. 8056, pp. 203-212, Springer-Verlag, 2013 Full text
Personalizing keyword search on RDF data. Giorgos Giannopoulos, Evmorfia Biliri and Timos Sellis. TPDL 2013: 272-278, 2013 Full text
Privacy against Aggregate Knowledge Attacks. Olga Gkountouna, Katerina Lepenioti, Manolis Terrovitis. PrivDB 2013 (ICDE 2013 WorkShop), 2013 Full text
Location Recommendation in Location-Based Social Networks Using User Check-in Data. Hao Wang, Manolis Terrovitis and Nikos Mamoulis. ACM SIGSPATIAL 2013, 2013 Full text
Storing Metadata as QR Codes in Multimedia Streams. Zigomitros Athanasios and Patsakis Constantinos. Metadata and Semantics Research. Springer International Publishing, 2013. 152-162, 2013 Full text
On Quantifying Qualitative Geospatial Data: A Probabilistic Approach. Georgios Skoumas , Dieter Pfoser , Anastasios Kyrillidis. Proceeding GEOCROWD '13 Proceedings of the Second ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information Pages 71-78 , 2013 Full text
Efficient identification and approximation of k-nearest moving neighbors. Georgios Skoumas, Dimitrios Skoutas, Alexandra Vlachaki. ACM SIGSPATIAL GIS 2013, November 5-8, 2013 Orlando, Florida, USA, 2013, 2013
Optimizing Landmark-Based Routing and Preprocessing. Alexandros Efentakis, Dieter Pfoser. Sixth ACM SIGSPATIAL International Workshop on Computational Transportation Science (IWCTS '13), 2013 Full text
Towards a Flexible and Scalable Fleet Management Service. Alexandros Efentakis, Sotiris Brakatsoulas, Nikos Grivas, George Lamprianidis, Kostas Patroumpas, Dieter Pfoser. Sixth ACM SIGSPATIAL International Workshop on Computational Transportation Science (IWCTS '13), 2013 Full text
Isochrones, Traffic and DEMOgraphics. Alexandros Efentakis, Nikos Grivas, George Lamprianidis, Georg Magenschab, Dieter Pfoser. ACM SIGSPATIAL GIS 2013, November 5-8, 2013 Orlando, Florida, USA, 2013 Full text
Automating the Adaptation of Evolving Data-Intensive Ecosystems. Petros Manousis, Panos Vassiliadis, George Papastefanatos. 32nd International ER International Conference on Conceptual Modeling (ER 2013), Hong Kong, 11-13, November, 2013. , 2013
Challenges and Opportunities in the Evolving Data web. George Papastefanatos. 1st International Workshop on Modeling and Management of Big Data (MoBiD ), November 13, 2013, Hong Kong, 2013
Segmentation-Based Road Network Construction. Sophia Karagiorgou, Dieter Pfoser, Dimitris Skoutas. ACM SIGSPATIAL GIS 2013, November 5-8, 2013 Orlando, Florida, USA, 2013 Full text
The ARIADNE interoperability framework, component architecture and registry service. Costis Dallas, Dimitris Gavrilis. Conference on Cultural Heritage and new technologies, Vienna, Austria, November 2013, 2013
Charting the digital library evaluation domain with a semantically enhanced mining methodology. Eleni Afiontzi, Giannis Kazadeis, Leonidas Papachristopoulos, Michalis Sfakakis, Giannis Tsakonas, Christos Papatheodorou . Proceedings of the 13th ACM/IEE-CS joint conference on Digital libraries, JCDL \'13, Indianapolis, Indiana, USA, July 2013, Pages: 125-134, 2013 Full text
A Curation-Oriented Thematic Aggregator. Dimitris Gavrilis, Stavros Angelis, Costis Dallas . Proceedings of the 17th International Conference on Theory and Practice of Digital Libraries, TPDL 2013, Valetta, Malta, September 2013, Pages: 132-137, 2013 Full text
Achieving Interoperability between the CARARE schema for Monuments and Sites and the Europeana Data Model. Antoine Isaac, Valentine Charles, Kate Fernie, Costis Dallas, Dimitris Gavrilis, Stavros Angelis . Proceedings of the International Conference on Dublin Core and Metadata Applications, DC-2013, Lisbon, Portugal, September 2013, Pages: 115-125, 2013 Full text
Preservation Aspects of a Curation-Oriented Thematic Aggregator. Dimitris Gavrilis, Stavros Angelis, Christos Papatheodorou, Costis Dallas, Panos Constantopoulos . Proceedings of the 10th International Conference on Preservation of Digital Objects, iPRES2013, Lisbon, Portugal, September 2013, Pages: 246-251, 2013 Full text
DYAS: The Greek research Infrastructure network for the humanities. Panos Constantopoulos, Costis Dallas. Conference on Cultural Heritage and new technologies, Vienna, Austria, November 2013, 2013
Entities, Topics and Events in Community Memories. Elena Demidova, Nicola Barbieri, Stefan Dietze, Adam Funk, Gerhard Gossen, Diana Maynard, Nikos Papailiou, Vassilis Plachouras, Wim Peters, Thomas Risse, Yannis Stavrakas, Nina Tahmasebi. 1st International Workshop on Archiving Community Memories (ARCOMEM), in conjunction with iPRES2013, 2013 Full text
An Architecture for Selective Web Harvesting: The Use Case of Heritrix. Vassilis Plachouras, Florent Carpentier, Julien Masanes, Thomas Risse, Pierre Senellart, Patrick Siehndel, Yannis Stavrakas. 1st International Workshop on Archiving Community Memories (ARCOMEM), in conjunction with iPRES2013, 2013 Full text
Assessing the Coverage of Data Collection Campaigns on Twitter: A Case Study. Vassilis Plachouras, Yannis Stavrakas, Athanasios Andreou. Proceedings of International Workshop on Social Media Semantics (SMS 2013), OTM 2013 Workshops, LNCS 8186, pp 598-607, 2013 Full text
RDivF: Diversifying Keyword Search on RDF Graphs. • Nikos Bikakis, Giorgos Giannopoulos, John Liagouris, Dimitrios Skoutas, Theodore Dalamagas, and Timos Sellis. 17th International Conference on Theory and Practice of Digital Libraries (TPDL '13), 2013 Full text
Publishing Census as Linked Open Data. A Case Study. Irene Petrou , George Papastefanatos, Theodore Dalamagas . 2nd International Workshop on Open Data (WOD13), 2013
GeoKnow: Leveraging Geospatial Data in the Web of Data. Alejandra Garcia-Rojas, Spiros Athanasiou, Jens Lehmann, Daniel Hladky. Open Data on the Web (ODW) Workshop, Shoreditch, London, 2013, 2013 Full text
Capturing the History and Change Structure of Evolving Data. George Papastefanatos, Yannis Stavrakas, and Theodora Galani. Fifth International Conference on Advances in Databases, Knowledge, and Data Applications (DBKDA 2013), Seville, Spain, January 2013, 2013 Full text

2012

Diversifying User Comments on News Articles. Giorgos Giannopoulos, Ingmar Weber, Alejandro Jaimes and Timos Sellis. WISE 2012: 100-113, 2012 Full text
TARCLOUD: A Cloud-Based Platform to Support miRNA Target Prediction. Thanasis Vergoulis, Michail Alexakis, Theodore Dalamagas, Manolis Maragkakis, Artemis G. Hatzigeorgiou, Timos Sellis. SSDBM 2012: 628-633, 2012
Defining User Requirements for Holocaust Research Infrastractures and Services in the EHRI Project. Agiatis Benardou, Costis Dallas. Proceedings of the 2012 iConference, iConference \'12, Toronto, Canada, February 2012 , Pages: 644-645, 2012 Full text
Διάδοση Αλλαγών Σε Πληροφοριακά Οικοσυστήματα. George Papastefanatos, Panos Vassiliadis, Alkis Simitsis. Ελληνικό Συμπόσιο Βάσεων Δεδομένων (HDMS’12), 2012
Crowdsourcing computing resources for shortest-path computation. Alexandros Efentakis, Dimitris Theodorakis, Dieter Pfoser. Proc. 20th ACM SIGSPATIAL GIS Conference, 2012 Full text
On Vehicle Tracking Data-Based Road Network Generation. Sophia Karagiorgou, Dieter Pfoser. Proc. 20th ACM SIGSPATIAL GIS Conference, 2012 Full text
Collaborative Geospatial Feature Search. George Lamprianidis, Dieter Pfoser. Proc. 20th ACM SIGSPATIAL GIS Conference, 2012 Full text
Querying Term Associations and their Temporal Evolution in Social Data. Vassilis Plachouras, and Yannis Stavrakas. International VLDB Workshop on Online Social Systems (WOSS 2012), Istanbul, Turkey, August 2012, 2012 Full text
A Platform for Supporting Data Analytics on Twitter: Challenges and Objectives. Yannis Stavrakas, and Vassilis Plachouras. Workshop on Knowledge Extraction and Consolidation from Social Media (KECSM 2012), Boston, USA, November 2012, 2012 Full text
Preservation of Social Web Content based on Entity Extraction and Consolidation. Stefan Dietze, Diana Maynard, Elena Demidova, Thomas Risse, Wim Peters, Katerina Doka, and Yannis Stavrakas. International Workshop on Semantic Digital Archives (SDA 2012), Paphos, Cyprus, September 2012, 2012 Full text
Multiplexing Trajectories of Moving Objects. K. Patroumpas, K. Toumbas, and T. Sellis. Proceedings of the 24th International Conference on Scientific and Statistical Database Management (SSDBM 2012), pp. 595-600, Chania, Greece, June 2012, 2012 Full text
Probabilistic Range Monitoring of Streaming Uncertain Positions in GeoSocial Networks. K. Patroumpas, M. Papamichalis, and T. Sellis. Proceedings of the 24th International Conference on Scientific and Statistical Database Management (SSDBM 2012), pp. 20-37, Chania, Greece, June 2012, 2012 Full text
Event Processing and Real-Time Monitoring over Streaming Traffic Data. K. Patroumpas and T. Sellis. Proceedings of the 11th International Symposium on Web and Wireless Geographical Information Systems (W2GIS 2012), pp. 116-133, Naples, Italy, April 2012, 2012 Full text
Exploiting the Social and Semantic Web for guided Web Archiving. Thomas Risse, Stefan Dietze, Wim Peters, Katerina Doka, Yannis Stavrakas and Pierre Senellart. International Conference on Theory and Practice of Digital Libraries (TPDL 2012), Paphos, Cyprus, September 2012, 2012
Diachronic Linked Data: Towards Long-Term Preservation of Structured Interrelated Information. Yannis Stavrakas, George Papastefanatos, Theodore Dalamagas and Vassilis Christophides. International Workshop on Open Data (WOD 2012), Nantes, France, May 25 2012, 2012
Publishing Life Science Data as Linked Open Data: the Case Study of miRBase. Theodore Dalamagas, Nikos Bikakis, George Papastefanatos, Yannis Stavrakas and Artemis Hatzigeorgiou. International Workshop on Open Data (WOD 2012), Nantes, France, May 25 2012, 2012
Cirrus: A Delay-Tolerant Cloud. Eli Katsiri. 10th International Conference on Wired/Wireless Internet Communications - WWIC2012 , 2012
SPARQL-RW: Transparent Query Access over Mapped RDF Data Sources. Makris Konstantinos, Bikakis Nikos, Gioldasis Nektarios, Christodoulakis Stavros. Proceedings of the 15th International Conference on Extending Database Technology (EDBT '12), 2012 Full text

2011

Building the Hellenic National Geospatial Infrastructure from Scratch: Challenges, Legislation, Progress and Experiences. Konstantinos Nedas, Kaliope Pediaditi, Spiros Athanasiou, Prodroms Tsiavos, Giorgos Moutevelis. INSPIRE Conference 2011, Edinburgh, UK, 2011 Full text
Subsuming Multiple Sliding Windows for Shared Stream Computation. K. Patroumpas and T. Sellis. Proceedings of the 15th East-European Conference on Advances in Databases and Information Systems (ADBIS 2011), pp. 56-69, Vienna, Austria, September 2011, 2011 Full text
Learning to rank user intent. Giorgos Giannopoulos, Ulf Brefeld, Theodore Dalamagas, and Timos Sellis. Proceedings of the 20th ACM International Conference on Information and Knowledge Management (CIKM’11), 2011 Full text
Search behavior-driven training for result re-ranking. Giorgos Giannopoulos, Theodore Dalamagas, and Timos Sellis. Proceedings of the International Conference on Theory and Practice of Digital Libraries (TPDL’11), 2011 Full text
Dynamic pickup and delivery with transfers. Panagiotis Bouros, Dimitris Sacharidis, Theodore Dalamagas, and Timos Sellis. Proceedings of the 12th International Symposium on Spatial and Temporal Databases (SSTD’11), 2011 Full text
Opinion Mapping Travelblogs. Efthymios Drymonas, Alexandros Efentakis, Dieter Pfoser. Terra Cognita Workshop, 2011 Full text
Efficient Data Management in Support of Shortest-Path Computation. Alexandros Efentakis, Dieter Pfoser, Agnes Voisard. 4th ACM SIGSPATIAL International Workshop on Computational Transportation Science, 2011 Full text
Jeocrowd - Collaborative Searching of User-Generated Point Datasets. George Lamprianidis, Dieter Pfoser. ACM SIGPATIAL Symposium (ACM GIS 2012), 2011 Full text
A New Sentence Compression Dataset and Its Use in an Abstractive Generate-and-Rank Sentence Compressor. Galanis Dimitrios, Androutsopoulos Ion. In Proceedings of the UCNLG+Eval: Language Generation and Evaluation Workshop, 1—11, Edinburgh, Scotland, 2011, 2011 Full text
A Generate and Rank Approach to Sentence Paraphrasing. Malakasiotis Prodromos, Androutsopoulos Ion. In Proceedings of the 2011 Conference on Empirical Methods in Natural Language Processing (EMNLP ‘11), 96 -- 106, Edinburgh, Scotland, 2011, 2011 Full text
On User-Generated Geocontent. Dieter Pfoser. 12th Symposium on Spatial and Temporal Databases (SSTD), 2011
Optimizing Query Shortcuts in RDF Databases. Vicky Dritsou, Panos Constantopoulos, Antonios Deligiannakis, Yannis Kotidis. 8th Extended Semantic Web Conference (ESWC 2011), Creete, Greece, May 2011, 2011
Shortcut Selection in RDF Databases. Vicky Dritsou, Panos Constantopoulos, Antonios Deligiannakis, Yannis Kotidis. ICDE Workshop on Data Engineering meets the Semantic Web (DESWeb 2011), Hannover, Germany, April 2011, 2011
Efficient Answering of Set Containment Queries for Skewed Item Distributions. Manolis Terrovitis, Panagiotis Bouros, Panos Vassiliadis,Timos Sellis, Nikos Mamoulis. In Proceedings of the 14th International Conference on Extending Database Technology (EDBT '11), Uppsala, Sweden, 2011, 2011 Full text
Mobile Task Computing: Beyond Location-based Services and Ebooks. John Liagouris, Spiros Athanasiou, Alexandros Efentakis, Stefan Pfennigschmidt, Dieter Pfoser, Eleni Tsigka, Agnes Voisard. 10th Int'l Symposium on Web and Wireless Geographical Information Systems (W2GIS), 2011 Full text
Propagating Evolution Events in Data-Centric Software Artifacts. George Papastefanatos, Panos Vassiliadis, Alkis Simitsis. In 3rd International Workshop on Hot Topics in Software Upgrades (HotSWUp'11 - in conjunction with ICDE 2011), 2011
Using Structured Changes for Elucidating Data Evolution. Yannis Stavrakas, George Papastefanatos. ICDE Workshop on Managing Data Throughout its Lifecycle (DaLi 2011), Hannover, Germany, 2011 Full text

2010

Mopseus - A Digital Library Management System Focused on Preservation. D. Gavrilis, C. Papatheodorou, P. Constantopoulos, S. Angelis. Proceedings of the 14th European Conference Research and Advanced Technology for Digital Libraries, ECDL 2010, Lecture Notes in Computer Science (LNCS), Volume: 6273, Pages: 445-448, 2010 Full text
Query Transformation in a CIDOC CRM Based Cultural Metadata Integration Environment. M. Gergatsoulis, L. Bountouri, P. Gaitanou, C. Papatheodorou. Proceedings of the 14th European Conference Research and Advanced Technology for Digital Libraries, ECDL 2010, Lecture Notes in Computer Science (LNCS), Pages: 38-45, 2010 Full text
MOPSEUS - A Digital Repository System with Semantically Enhanced Preservation Services. D. Gavrilis, S. Angelis, C. Papatheodorou. Proceedings of the 7th International Conference on Preservation of Digital Objects, iPRES2010, Pages: 135-143, 2010 Full text
Multi-granular Time-Based Sliding Windows over Data Streams. K. Patroumpas and T. Sellis. Proceedings of the 17th International Symposium on Temporal Representation and Reasoning (TIME 2010), pp. 146-153, Paris, France, September 2010, 2010 Full text
An Extractive Supervised Two-Stage Method for Sentence Compression. D. Galanis and I. Androutsopoulos. Proceedings of Human Language Technologies: The 11th Annual Conference of the North American Chapter of the Association for Computational Linguistics (HLT-NAACL 2010), Los Angeles, CA, USA, pp. 885-893, 2010., 2010 Full text
Probabilistic Contextual Skylines. Dimitris Sacharidis, Anastasios Arvanitis, Timos Sellis. 26th International Conference on Data Engineering (ICDE'10), 2010 Full text
Geoblogging: user-contributed geospatial data collection and fusion. Dieter Pfoser, Charikleia Lontou, Euthymios Drymonas, Savvas Georgiou. ACM SIGPATIAL Symposium (ACM GIS 2010): 532-533, 2010 Full text
Geospatial Route Extraction from Texts. Euthymios Drymonas, Dieter Pfoser. ACM SIGSPATIAL International Workshop on Data Mining for Geoinformatics (DMGI), 2010 Full text
Hecataeus: Regulating Schema Evolution. George Papastefanatos, Panos Vassiliadis, Alkis Simitsis, Yannis Vassiliou. 26th International Conference on Data Engineering (ICDE'10), 2010 Full text
FreePub: Collecting and Organizing Scientic Material Using Mindmaps. Theodore Dalamagas, Tryfon Farmakakis, Manolis Maragkakis and Artemis G. Hatzigeorgiou. SWAT4LS Workshop: Semantic Web Applications and Tools for Life Sciences, 2010
GoNTogle: a Tool for Semantic Annotation and Search. Giorgos Giannopoulos, Nikos Bikakis, Theodore Dalamagas, Timos Sellis. ESWC 2010 (demo paper), 2010
Integrating Keywords and Semantics on Document Annotation and Search. Nikos Bikakis, Giorgos Giannopoulos, Theodore Dalamagas, Timos Sellis. ODBASE 2010, 2010
Supporting Complex Changes in Evolving Interrelated Web Databanks. Yannis Stavrakas, George Papastefanatos. 18th International Conference on Cooperative Information Systems (CoopIS 2010), Crete, Greece, October 27-29, 2010 Full text
Collaborative information spaces: Research directions at IMIS. George Papastefanatos, Yannis Stavrakas, Christos Papatheodorou, Theodore Dalamagas, Dieter Pfoser, Timos Sellis. 2nd ERCIM DIS Workshop on large scale and federated information spaces, Amsterdam, 2010 Full text

2009

Adaptive Natural Language Interaction. S. Konstantopoulos, A. Tegos, D. Bilidas, I. Androutsopoulos, G. Lampouras, P. Malakasiotis, C. Matheson and O. Deroo. System demonstration, 12th Conference of the European Chapter of the Association for Computational Linguistics (EACL 2009), Athens, Greece, 2009., 2009 Full text
An Open-Source Natural Language Generator for OWL Ontologies and its Use in Protege and Second Life. D. Galanis, G. Karakatsiotis, G. Lampouras and I. Androutsopoulos. System demonstration, 12th Conference of the European Chapter of the Association for Computational Linguistics (EACL 2009), Athens, Greece, 2009., 2009 Full text
Evolution of Interrelated Data: Users, Problems, and Systems. Yannis Stavrakas, Theodore Dalamagas, Timos Sellis. 1st ERCIM DIS Workshop on large scale and federated information spaces, Paris, 2009 Full text
Collaborative Ranking Function Training for Web Search Personalization. Giorgos Giannopoulos, Theodore Dalamagas and Timos Sellis. PersDB 2009 : 13 - 18, 2009 Full text
A new perspective on efficient and dependable vehicle routing. Dieter Pfoser, Alexandros Efentakis, Agnès Voisard, Carola Wenk. In Proceedings of the 17th ACM SIGSPATIAL International Symposium on Advances in Geographic Information Systems (ACM GIS), 2009., 2009
Providing Universal Access to History Textbooks: A Modified GIS Case. Dieter Pfoser, Alexandros Efentakis, Thanasis Hadzilacos, Sophia Karagiorgou, Giorgos Vasiliou. In Proceedings of the 9th International Symposium on Web and Wireless Geographical Information Systems (W2GIS), 2009., 2009 Full text
Efficient Evaluation of Generalized Tree-Pattern Queries with Same-Path Constraints. Xiaoying Wu, Dimitri Theodoratos, Stefanos Souldatos, Theodore Dalamagas, Timos Sellis. SSDBM 2009: 361-379, 2009 Full text
Window Update Patterns in Stream Operators. Kostas Patroumpas, Timos Sellis. ADBIS 2009: 118-132, 2009 Full text
Finding Short Definitions of Terms on Web Pages. Lampouras, G. & Androutsopoulos, I.. Proceedings of the 2009 Conference on Empirical Methods on Natural Language Processing (EMNLP 2009 at ACL/IJCNLP 2009), Suntec, Singapore, 2009, 2009 Full text
Utilizing Wireless Positioning as a Tracking Data Source. Spiros Athanasiou, Panos Georgantas, George Gerakakis, Dieter Pfoser. SSTD2009: 171-188, 2009 Full text
Rule-based Management of Schema Changes at ETL sources. George Papastefanatos, Panos Vassiliadis, Alkis Simitsis, Timos Sellis, Yannis Vassiliou. Workshop on Managing Evolution of Data Warehouses (MEDWa ’09), 2009
Evaluating Reachability Queries over Path Collections. Panagiotis Bouros, Spiros Skiadopoulos, Theodore Dalamagas, Dimitris Sacharidis, Timos Sellis. SSDBM 2009: 398-416, 2009 Full text
A tool for mapping discovery over revealing schemas. Verena Kantere, Dimos Mpousounis, Timos Sellis. 12th International Conference on Extending Database Technology, 2009
Top-k Dominant Web Services under Multi-Criteria Matching. Dimitrios Skoutas, Dimitris Sacharidis, Alkis Simitsis, Verena Kantere, Timos Sellis. In Proceedings of the 12th International Conference on Extending Database Technology (EDBT '09), 2009 Full text

2008

Preparing DARIAH. Constantopoulos C., Dallas C., Doorn P., Gavrilis D., Gros A., Stylianou G. VSMM 2008 - Digital Heritage - Proceedings of the 14th International Conference on Virtual Systems and Multimedia, 2008 Full text
INDIGO: Interaction with Personality and Dialogue Enabled Robots. S. Konstantopoulos, I. Androutsopoulos, H. Baltzakis, V. Karkaletsis, C. Matheson, A. Tegos and P. Trahanias. System demonstration, 18th European Conference on Artificial Intelligence (ECAI 2008), Patras, Greece, 2008, 2008 Full text
NaturalOWL: Generating Texts from OWL Ontologies in Protege and in Second Life. G. Karakatsiotis, D. Galanis, G. Lampouras and I. Androutsopoulos. System demonstration, 18th European Conference on Artificial Intelligence (ECAI 2008), Patras, Greece, 2008., 2008 Full text
Building an Adaptive Museum Gallery in Second Life. J. Oberlander, G. Karakatsiotis, A. Isard and I. Androutsopoulos. Proceedings of Museums and the Web, Montreal, Quebec, Canada, 2008., 2008 Full text
A Conversant Robotic Guide to Art Collections. D. Vogiatzis, D. Galanis, V. Karkaletsis, I. Androutsopoulos and C.D. Spyropoulos. Proceedings of the 2nd Workshop on Language Technology for Cultural Heritage Data, Language Resources and Evaluation Conference (LREC 2008), Marrakech, Morocco, 2008., 2008 Full text
Database interoperability through Web Services and ontologies. T. Sellis, D. Skoutas, K. Staikos. 8th IEEE International Conference on BioInformatics and BioEngineering, BIBE 2008. pages:1-5, 2008 Full text
Natural language reporting for ETL processes. Alkis Simitsis, Dimitrios Skoutas, Malú Castellanos. Proceeding of the ACM 11th international workshop on Data warehousing and OLAP, DOLAP'08, Pages 65-72, 2008 Full text
Using Handhelds to Search in Physical and Digital Information Spaces. Veronikis, S., Gavrilis, D., Zoutsou, K. & Papatheodorou, C.. The Second International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies, 2008 Full text
Semantic integration of Collection-level information: A Crosswalk between CIDOC/CRM and Dublin Core Collections Application Profile. Lourdi, I. & Papatheodorou, C.. Proceedings of the annual conference of the International Documentation Committee of the International Council of Museums (CIDOC 2008), 2008
Enhancing Library Services with Web 2.0 functionalities. Gavrilis, D., Kakali, C. & Papatheodorou, C.. Proceedings of the 12th European Conference on Digital Libraries (ECDL2008), 5173, 148-159, 2008 Full text
Designing interoperable museum information systems. Gavrilis, D., Tsakonas, G. & Papatheodorou, C.. Proceedings of the 14th International Conference on Virtual Systems and Multimedia, 2008 Full text
Boosting the ranking function learning process using clustering. Giorgos Giannopoulos, Theodore Dalamagas, Magdalini Eirinaki, Timos Sellis. WIDM 2008: 125-132, 2008 Full text
A heuristic approach for checking containment of generalized tree-pattern queries. Pawel Placek, Stefanos Souldatos, Dimitri Theodoratos, Xiaoying Wu, Theodore Dalamagas, Timos Sellis. CIKM 2008: 551-560, 2008 Full text
Multidimensional XPath. Nikolaos Fousteris, Yannis Stavrakas, Manolis Gergatsoulis. Proceedings of the 10th International Conference on Information Integration and Web-based Applications & Services (iiWAS 2008), Linz, Austria, 2008
On-Line Discovery of Hot Motion Paths. Dimitris Sacharidis, Kostas Patroumpas, Manolis Terrovitis, Verena Kantere, Michalis Potamias, Kyriakos Mouratidis, Timos Sellis. EDBT 2008: 392-403, 2008 Full text
Caching Dynamic Skyline Queries. Dimitris Sacharidis, Panagiotis Bouros, Timos Sellis. SSDBM 2008: 455-472, 2008 Full text
Ontology-Based Data Sharing in P2P Databases. Dimitrios Skoutas, Verena Kantere, Alkis Simitsis, Timos Sellis. In post-proceedings of the joint ODBIS & SWDB VLD'07 - workshop on Semantic Web, Ontologies, Databases, LNCS 5005, pp117-137, 2008 Full text
Efficient Semantic Web Service Discovery in Centralized P2P Environments. Dimitrios Skoutas, Dimitris Sacharidis, Verena Kantere, Timos Sellis. In Proc. of the 7th International Semantic Web Conference (ISWC), pp 583-598, 2008 Full text
Serving the Sky: Discovering and Selecting Semantic Web Services through Dynamic Skyline Queries. Dimitrios Skoutas, Dimitris Sacharidis, Alkis Simitsis, Timos Sellis. In Proc. of the 2nd IEEE International Conference on Semantic Computing (ICSC), pp 222-229, 2008 Full text

2007

Generating Multilingual Descriptions from Linguistically Annotated OWL Ontologies: the NaturalOWL System. Galanis D., Androutsopoulos I.. 11th European Workshop on Natural Language Generation (ENLG 2007), Pages: 143-146, 2007 Full text
Learning Textual Entailment using SVMs and String Similarity Measures. Malakasiotis P., Androutsopoulos I.. ACL-PASCAL Workshop on Textual Entailment and Paraphrasing, 45th Annual Meeting of the Association for Computational Linguistics (ACL 2007), Pages: 42-47, 2007 Full text
Integrating Dublin Core Metadata for Cultural Heritage Collections Using Ontologies. Kakali C., Lourdi I., Stasinopoulou T., Bountouri L., Papatheodorou C., Doerr M., Gergatsoulis M. 7th International Conference on Dublin Core and Metadata Applications, DC-2007, Pages: 128-139, 2007 Full text
Ontology-based Metadata Integration in the Cultural Heritage Domain. Stasinopoulou Th., Bountouri L., Lourdi I., Papatheodorou C., Doerr M., Gergatsoulis M.. ICADL-2007, Lecture Notes in Computer Science (LNCS), Volume: 4822/2007, Pages: 165-175, 2007 Full text

Journals

2023

Data-Driven Soiling Detection in PV Modules. Alexandros Kalimeris, Ioannis Psarros, Giorgos Giannopoulos, Manolis Terrovitis, George Papastefanatos, Gregory Kotsis. IEEE Journal of Photovoltaics (Volume: 13, Issue: 3, May 2023) , 2023 Full text
Resource-aware adaptive indexing for in situ visual exploration and analytics. Stavros Maroulis, Nikos Bikakis, George Papastefanatos, Panos Vassiliadis, Yannis Vassiliou. VLDB J. (32), pages 199–227 (2023), 2023 Full text

2022

VeTo+: improved expert set expansion in academia. Serafeim Chatzopoulos, Thanasis Vergoulis, Theodore Dalamagas, Christos Tryfonopoulos. Int. J. Digit. Libr. 23(1): 57-75, 2022
Estimating Next Day’s Forest Fire Risk via a Complete Machine Learning Methodology. Alexis Apostolakis, Stella Girtsou, Giorgos Giannopoulos, Nikolaos S Bartsotas, Charalampos Kontoes. Remote Sensing 14, no. 5: 1222., 2022 Full text
Relational schema optimization for RDF-based knowledge graphs. George Papastefanatos, Marios Meimaris, Panos Vassiliadis. Inf. Syst. 104: 101754, 2022 Full text
Fairness in rankings and recommendations: an overview. Evaggelia Pitoura, Kostas Stefanidis, Georgia Koutrika. VLDB J. 31(3): 431-458 (2022), 2022

2021

Further improvements on estimating the popularity of recently published papers. Serafeim Chatzopoulos, Thanasis Vergoulis, Ilias Kanellos, Theodore Dalamagas, Christos Tryfonopoulos. Quant. Sci. Stud. 2(4): 1529-1550, 2021 Full text
New trends in scientific knowledge graphs and research impact assessment. Paolo Manghi, Andrea Mannocci, Francesco Osborne, Dimitris Sacharidis, Angelo A. Salatino, Thanasis Vergoulis. Quant. Sci. Stud. 2(4): 1296-1300, 2021 Full text
BIP4COVID19: Releasing impact measures for articles relevant to COVID-19. Thanasis Vergoulis, Ilias Kanellos, Serafeim Chatzopoulos, Danae Pla Karidi, Theodore Dalamagas. Quant. Sci. Stud. 2(4): 1447-1465, 2021 Full text
Assessing the Predictability of Solar Energetic Particles with the use of Machine Learning techniques. Eleni Lavasa, Giorgos Giannopoulos, Athanasios Papaioannou, Anastasios Anastasiadis, IA Daglis, Angels Aran, David Pacheco, B Sanahuja. Solar Physics volume 296, Article number: 107 (2021) , 2021 Full text
View Selection over Knowledge Graphs in Triple Stores. Theofilos Mailis, Yannis Kotidis, Stamatis Christoforidis, Evgeny Kharlamov, Yannis E. Ioannidis. Proc. VLDB Endow. 14(13): 3281-3294, 2021 Full text
In-Situ Visual Exploration over Big Raw Data. Nikos Bikakis, Stavros Maroulis, George Papastefanatos, Panos Vassiliadis. In Inf. Syst. 95: 101616 , 2021 Full text
INODE: Building an End-to-End Data Exploration System in Practice. Sihem Amer-Yahia, Georgia Koutrika, Martin Braschler, Diego Calvanese, Davide Lanti, Hendrik Lücke-Tieke, Alessandro Mosca, Tarcisio Mendes de Farias, Dimitris Papadopoulos, Yogendra Patil, Guillem Rull, Ellery Smith, Dimitrios Skoutas, Srividya Subr. SIGMOD Rec. 50(4): 23-29 (2021), 2021
An Integrated System for Urban Parks Touring and Management. Kostis Pristouris, Harry Nakos, Yannis Stavrakas, Konstantinos I. Kotsopoulos, Theofanis Alexandridis, Myrto S. Barda, and Konstantinos P. Ferentinos. Urban Science, 5(4), 91, 2021, 2021
Defining and Detecting Complex Changes on RDF(S) Knowledge Bases. Theodora Galani, George Papastefanatos, Yannis Stavrakas, and Yannis Vassiliou. Journal on Data Semantics, 10(3-4): 367-398, 2021, 2021
DatAgent: The Imminent Age of Intelligent Data Assistant. Antonis Mandamadiotis, Georgia Koutrika, Stavroula Eleftherakis, Apostolis Glenis, Dimitrios Skoutas, and Yannis Stavrakas. Proceedings of VLDB Endowment 14(12): 2815-2818, 2021, 2021 Full text

2020

SPHINX: A System for Metapath-based Entity Exploration in Heterogeneous Information Networks. Serafeim Chatzopoulos, Kostas Patroumpas, Alexandros Zeakis, Thanasis Vergoulis, Dimitrios Skoutas. Proc. VLDB Endow. 13(12): 2913-2916, 2020 Full text
Blocking and Filtering Techniques for Entity Resolution: A Survey. George Papadakis, Dimitrios Skoutas, Emmanouil Thanos, Themis Palpanas. ACM Comput. Surv. 53(2): 31:1-31:42, 2020 Full text
LinkZoo: A Collaborative Resource Management Tool Based on Linked Data. Giorgos Alexiou, Marios Meimaris, George Papastefanatos, Ioannis Anagnostopoulos. International Journal on Semantic Web and Information Systems (IJSWIS) Volume 16, Issue 3, 1-19 (2020)., 2020 Full text
Initial Design and Features of an Augmented Reality System for Urban Park Touring and Management. Konstantinos P. Ferentinos, Yannis Stavrakas, Harry Nakos, Kostis Pristouris, and Myrto S. Barda. International Journal of Computer Theory and Engineering (IJCTE, ISSN: 1793-8201), Vol. 12, Num. 5, Oct 2020, 2020

2019

Big Data Exploration, Visualization and Analytics. Nikos Bikakis, George Papastefanatos, Olga Papaemmanouil. Journal on Big Data Research, Vol. 18 (2019). Editorial in Special Issue, 2019 Full text
Impact-Based Ranking of Scientific Publications: A Survey and Experimental Evaluation. Ilias Kanellos, Thanasis Vergoulis, Dimitris Sacharidis, Theodore Dalamagas, Yannis Vassiliou. TKDE, DOI: 10.1109/TKDE.2019.2941206 (early access), 2019 Full text
Implicit representations of high-codimension varieties. I.Z. Emiris, Christos Konaxis, Clément Laroche. Computer Aided Geometric Design 74, 2019 Full text
Visual Exploration of Geolocated Time Series with Hybrid Indexing. Georgios Chatzigeorgakidis, Kostas Patroumpas, Dimitrios Skoutas, Spiros Athanasiou, Spiros Skiadopoulos. Big Data Research, Volume 15 (pp. 12-28), 2019 Full text

2018

Solon: A Holistic Approach for Modelling, Managing and Mining Legal Sources. Marios Koniaris, George Papastefanatos, Ioannis Anagnostopoulos. Algorithms Journal, 11 (12), 196, 2018 Full text
Computational Methods and Optimizations for Containment and Complementarity in Web Data Cubes. M. Meimaris, G. Papastefanatos, P. Vassiliadis, I. Anagnostopoulos. Information Systems 75: 56-74 (2018)., 2018 Full text
Randomized embeddings with slack, and high-dimensional approximate nearest neighbor. E. Anagnostopoulos, I.Z. Emiris, and I. Psarros. ACM Trans. on Algorithms, 14:18:1–18:21, 2018, 2018 Full text
Tweet and Followee Personalized Recommendations Based on Knowledge Graphs. Danae Pla Karidi, Yannis Stavrakas, Yannis Vassiliou. Journal of Ambient Intelligence and Humanized Computing, 9(6):2035-2049, 2018 Full text
Analyzing and Predicting Spatial Crime Distribution Using Crowdsourced and Open Data. Alexandros Belesiotis, George Papadakis, Dimitrios Skoutas. ACM Trans. Spatial Algorithms and Systems 3(4): 12:1-12:31, 2018 Full text
Spatio-textual user matching and clustering based on set similarity joins. Alexandros Belesiotis, Dimitrios Skoutas, Christodoulos Efstathiades, Vassilis Kaffes, Dieter Pfoser. The VLDB Journal, Volume 27, 2018 Full text
FML kNN: scalable machine learning on Big Data using k nearest neighbor joins. Giorgos Chatzigeorgakidis, Sophia Karagiorgou, Spiros Athanasiou, and Spiros Skiadopoulos. Journal of Big Data, Vol. 5, DOI: 10.1186/s40537-018-0115-x, 2018 Full text

2017

Parallel Meta-blocking for Scaling Entity Resolution over Big Heterogeneous Data. V. Efthymiou, G. Papadakis, G. Papastefanatos, K. Stefanidis, T. Palpanas. Information Systems 65: 137-157 (2017), 2017 Full text
Combining Geolocated Data for Urban Area Profiling. Danae Pla Karidi, Harry Nakos, Alexandros Efentakis, Yannis Stavrakas. International Journal On Advances in Software, v10 n3&4, 2017
DIANA-TarBase v8: a decade-long collection of experimentally supported miRNA–gene interactions. Karagkouni D, Paraskevopoulou MD, Chatzopoulos S, Vlachos IS, Tastsoglou S, Kanellos I, Papadimitriou D, Kavakiotis I, Maniou S, Skoufos G, Vergoulis T, Dalamagas T, Hatzigeorgiou AG. Nucleic Acids Research, gkx1141, https://doi.org/10.1093/nar/gkx1141. Epub 201 November 16, 2017 Full text
A Layered Approach for More Robust Generation of Road Network Maps from Vehicle Tracking Data. Sophia Karagiorgou, Dieter Pfoser, Dimitrios Skoutas. ACM Trans. Spatial Algorithms and Systems 3(1): 3:1-3:21 (2017), 2017 Full text
BUFET: boosting the unbiased miRNA functional enrichment analysis using bitsets.. Konstantinos Zagganas, Thanasis Vergoulis, Maria D. Paraskevopoulou, Ioannis S. Vlachos, Spiros Skiadopoulos, Theodore Dalamagas. BMC Bioinformatics. 2017 Sep 6;18(1):399, 2017 Full text

2016

Boosting the efficiency of large-scale entity resolution with enhanced meta-blocking. G. Papadakis, G. Papastefanatos, T. Palpanas, M. Koubarakis.. Journal of Big Data research (6): 43-63 (2016), DOI: 10.1016/j.bdr.2016.08.002, 2016 Full text
A Query Language for Multi Version Data Web Archives. Marios Meimaris, George Papastefanatos, Stratis Viglas, Yannis Stavrakas, Christos Pateritsas, Ioannis Anagnostopoulos. Expert Systems 33(4): 383-404 (2016), 2016 Full text
DIANA-mirExTra v2.0: Uncovering microRNAs and transcription factors with crucial roles in NGS expression data. Ioannis S. Vlachos, Thanasis Vergoulis, Maria D. Paraskevopoulou, Filopoimin Lykokanellos, Georgios Georgakilas, Penny Georgiou, Serafeim Chatzopoulos, Dimitra Karagkouni, Foteini Christodoulou, Theodore Dalamagas, Artemis G Hatzigeorgiou. Nucl. Acids Res. , 2016 Full text
DIANA-miRGen v3.0: accurate characterization of microRNA promoters and their regulators. Georgios Georgakilas, Ioannis S. Vlachos, Konstantinos Zagganas, Thanasis Vergoulis, Maria D. Paraskevopoulou, Ilias Kanellos, Panayiotis Tsanakas, Dimitris Dellis, Athanasios Fevgas, Theodore Dalamagas, Artemis G. Hatzigeorgiou. Nucl. Acids Res. 44 (D1): D190-D195, 2016 Full text
DIANA-LncBase v2: indexing microRNA targets on non-coding transcripts. Maria D. Paraskevopoulou, Ioannis S. Vlachos, Dimitra Karagkouni, Georgios Georgakilas, Ilias Kanellos, Thanasis Vergoulis, Konstantinos Zagganas, Panayiotis Tsanakas, Evangelos Floros, Theodore Dalamagas, and Artemis Hatzigeorgiou. Nucl. Acids Res. 44 (D1): D231-D238, 2016 Full text
A Hierarchical Aggregation Framework for Efficient Multilevel Visual Exploration and Analysis. Nikos Bikakis, George Papastefanatos, Melina Skourla, Timos Sellis. Semantic Web Journal (SWJ) vol. Preprint, no. Preprint, pp. 1-41, 2016, 2016 Full text

2015

DIANA-miRPath v3.0: deciphering microRNA function with experimental support. Vlachos IS, Zagganas K, Paraskevopoulou MD, Georgakilas G, Karagkouni D, Vergoulis T, Dalamagas T, Hatzigeorgiou AG. Nucleic Acids Res. 2015 Jul 1;43(W1):W460-6. doi: 10.1093/nar/gkv403. Epub 2015 May 14, 2015 Full text
Impact Analysis and Policy-Conforming Rewriting of Evolving Data-Intensive Ecosystems. Petros Manousis, Panos Vassiliadis, George Papastefanatos. Journal on Data Semantics 4(4): 231-267 (2015), 2015 Full text
Schema-agnostic vs Schema-based Configurations for Blocking Methods on Homogeneous Data. George Papadakis, George Alexiou, George Papastefanatos, Georgia Koutrika. PVLDB 9(4): 312-323 (2015), 2015 Full text
Finding Desirable Objects under Group Categorical Preferences. Nikos Bikakis, Karim Benouaret, Dimitris Sacharidis. Knowledge and Information Systems Journal (KAIS), 2015 , 2015 Full text
Algorithms and criteria for diversification of news article comments. Giorgos Giannopoulos, Marios Koniaris, Ingmar Weber, Alejandro Jaimes, Timos K. Sellis. Journal of Intelligent Information Systems, 2015 Full text
Exposing INSPIRE on the Semantic Web. Kostas Patroumpas, Nikos Georgomanolis, Thodoris Stratiotis, Michail Alexakis, Spiros Athanasiou,. Journal of Web Semantics, Special Issue on Geospatial Semantics, 2015 Full text
DIANA-TarBase v7.0: indexing more than half a million experimentally supported miRNA:mRNA interactions. Ioannis S. Vlachos, Maria D. Paraskevopoulou, Dimitra Karagkouni, Georgios Georgakilas, Thanasis Vergoulis, Ilias Kanellos, Ioannis-Laertis Anastasopoulos, Sofia Maniou, Konstantina Karathanou, Despina Kalfakakou, Athanasios Fevgas, Theodore Dalamaga. Nucl. Acids Res. 43 (D1): D153-D159, 2015 Full text
Crowdsourcing urban form and function. Andrew Crooks, Dieter Pfoser, Andrew Jenkins, Arie Croitoru, Anthony Stefanidis, Duncan Smith, Sophia Karagiorgou, Alexandros Efentakis & George Lamprianidis. International Journal of Geographical Information Science: pages 1-22, 2015, 2015 Full text

2014

mirPub: a database for searching microRNA publications. Thanasis Vergoulis, Ilias Kanellos, Nikos Kostoulas, Georgios Georgakilas, Timos Sellis, Artemis Hatzigeorgiou, Theodore Dalamagas. Bioinformatics 31 (9): 1502-1504, 2014 Full text
Towards a methodology for publishing Linked Open Statistical Data. Irene Petrou, Marios Meimaris, George Papastefanatos. eJournal of eDemocracy and Open Government (JeDEM), Vol 6, No 1 (2014), 2014 Full text
Supervised Metablocking. George Papadakis, George Papastefanatos, Georgia Koutrika. PVLDB 7(14): 1929-1940 (2014), 2014 Full text
Publishing Greek Census Data as Linked Open Data. Irene Petrou, George Papastefanatos . ERCIM News 2014(96), 2014 Full text
Public spending as LOD: the case of Greece. Michalis Vafopoulos, Marios Meimaris, Ioannis Anagnostopoulos, Agis Papantoniou, Ioannis Xidias, Giorgos Alexiou, Giorgos Vafeiadis, Michalis Klonaras, Vassili Loumos. In Semantic Web Journal, available at SSRN 2233998, 2014 Full text
The ARCOMEM Architecture for Social- and Semantic-Driven Web Archiving. Thomas Risse, Elena Demidova, Stefan Dietze, Wim Peters, Nikolaos Papailiou, Katerina Doka, Yannis Stavrakas, Vassilis Plachouras, Pierre Senellart, Florent Carpentier, Amin Mantrach, Bogdan Cautis, Patrick Siehndel, and Dimitris Spiliotopoulos. Future Internet 2014, 6, 688-716; doi:10.3390/fi6040688, 2014 Full text
Efficient Identification of Implicit Facts in Incomplete OWL2-EL Knowledge Bases. John Liagouris and Manolis Terrovitis . PVLDB 7(14):1993-2004, 2014 Full text
An Effective Encoding Scheme for Spatial RDF Data. John Liagouris, Nikos Mamoulis, Panagiotis Bouros and Manolis Terrovitis. PVLDB 7(12):1271-1282, 2014 Full text
Disassociation for Electronic Health Record Privacy. Grigorios Loukides, John Liagouris, Aris Gkoulalas-Divanis and Manolis Terrovitis. Journal of Biomedical Informatics (to appear), 2014
ARCOMEM Crawling Architecture. Vassilis Plachouras, Florent Carpentier, Muhammad Faheem, Julien Masanes, Thomas Risse, Pierre Senellart, Patrick Siehndel, and Yannis Stavrakas. Future Internet 2014, 6, 518-541, doi:10.3390/fi6030518, August 2014, 2014 Full text
Diachronic Linked Data: Capturing the Evolution of Structured Interrelated Information on the Web. George Papastefanatos, and Yannis Stavrakas. ERCIM News on Open Linked Data, Number 96, page 36, January 2014, 2014
GeoKnow: Making the Web an Exploratory Place for Geospatial Knowledge. Spiros Athanasiou, Daniel Hladky, Giorgos Giannopoulos, Alejandra Garcia Rojas and Jens Lehmann. Ercim news 2014, 2014(96), 2014 Full text

2013

DIANA-LncBase: experimentally verified and computationally predicted microRNA targets on long non-coding RNAs. Paraskevopoulou MD, Georgakilas G, Kostoulas N, Reczko M, Maragkakis M, Dalamagas T, Hatzigeorgiou AG . Nucleic Acids Research 41(Database Issue):D239-D245, 2013 Full text
GeoKnow: Geo-Anwendungen im Daten-Web. Jens Lehmann, Konrad Höffner, Sandra Prätor, Stephanie Lehmann, Axel Ngonga, Alejandra Garcia-Rojas, Spiros Athanasiou. gis.Business (2013), 2013 Full text
Generating Natural Language Descriptions from OWL Ontologies: the NaturalOWL System. I. Androutsopoulos, G. Lampouras and D. Galanis. Journal of Artificial Intelligence Research, 48:671-715, 2013., 2013 Full text
The SPARQL2XQuery Interoperability Framework. Bikakis Nikos, Tsinaraki Chrisa, Stavrakantonakis Ioannis, Gioldasis Nektarios, Christodoulakis Stavros. World Wide Web Journal (to appear), 2013 Full text
DIANA-microT web server v5.0: service integration into miRNA functional analysis workflows. Maria D. Paraskevopoulou, Georgios Georgakilas, Nikos Kostoulas, Ioannis S. Vlachos, Thanasis Vergoulis, Martin Reczko, Christos Filippidis, Theodore Dalamagas and A.G. Hatzigeorgiou. Nucl. Acids Res. 41(W1):W169-W173, 2013 Full text
Classifying and comparing community innovation in Idea Management Systems. Adam Westerski, Theodore Dalamagas, Carlos A Iglesias. Decision Support Systems, 54(3): 1316-1326, 2013 Full text

2012

Privacy Preservation by Disassociation. Manolis Terrovitis, John Liagouris, Nikos Mamoulis, Spiros Skiadopoulos. PVLDB, 5(10), pp 944-955, 2012, 2012 Full text
DIANA miRPath v.2.0: investigating the combinatorial effect of microRNAs in pathways. I. S. Vlachos, N. Kostoulas, T. Vergoulis, G. Georgakilas, M. Reczko, M. Maragkakis, M. D. Paraskevopoulou, K. Prionidis, T. Dalamagas, A. G. Hatzigeorgiou. Nucl. Acids Res. 40(W1): W498-W504, 2012 Full text
Metrics for the Prediction of Evolution Impact in ETL Ecosystems: A Case Study. George Papastefanatos, Panos Vassiliadis, Alkis Simitsis, Yannis Vassiliou. Journal on Data Semantics 1(2): 75-97 (2012), 2012
Approximate Regional Sequence Matching for Genomic Databases. T. Vergoulis, T. Dalamagas, D. Sacharidis, T. Sellis. Volume 21, Issue 6, pp 779-795, 2012 Full text
Tarbase 6.0: Capturing the Exponential Growth of miRNA Targets with Experimental Support. T. Vergoulis, I. Vlachos, P. Alexiou, G. Georgakilas, M. Maragkakis, M. Reczko, S. Gerangelos, N. Koziris, T. Dalamagas, AG Hatzigeorgiou. Nucleic Acids Research, 40 (Database Issue), 2012 Full text

2011

Maintaining Consistent Results of Continuous Queries under Diverse Window Specifications. K. Patroumpas and T. Sellis. Information Systems, Vol. 36, No. 1, pp. 42-61, March 2011, 2011 Full text
Processing and evaluating partial tree pattern queries on xml data. Xiaoying Wu, Stefanos Souldatos, Dimitri Theodoratos, Theodore Dalamagas, Yannis Vassiliou, and Timos Sellis. IEEE Transactions on Knowledge and Data Engineering (TKDE), 2011 Full text
DIANA-microT Web server upgrade supports Fly and Worm miRNA target prediction and bibliographic miRNA to disease association. M. Maragkakis, T. Vergoulis, P. Alexiou, M. Reczko, K. Plomaritou, M. Gousis, K. Kourtis, N. Koziris, T. Dalamagas, A. Hatzigeorgiou. Nucleic Acids Research, 39, 2011 Full text
Privacy preserving publishing of set-values. Manolis Terrovitis. Privacy Objervatory Magazine, 2, 2011, 2011 Full text
Privacy preservation in the dissemination of location data. SIGKDD Explorations. Manolis Terrovitis. SIGKDD Explorations, 13(1), 2011., 2011 Full text
Evaluating Path Queries over Frequently Updated Route Collections. P. Bouros, D. Sacharidis, T. Dalamagas, S. Skiadopoulos, T. Sellis. TKDE, 2011

2010

Language-Independent Access to History Textbooks - Utilizing GIS Functionality with Spatiotemporal and Thematic Metadata.. Dieter Pfoser, Alexandros Efentakis, Thanasis Hadzilacos, Sophia Karagiorgou, Giorgos Vassiliou. Transactions of GIS 14(6): 773-790, 2010 Full text
Local and Global Recoding Methods for Anonymizing Set-valued Data. Manolis Terrovitis, Nikos Mamoulis and Panos Kalnis. The VLDB Journal, (to appear), 2010 Full text
miRGen 2.0 a database of microRNA genomic information and regulation. P. Alexiou, T. Vergoulis, M. Gleditzsch, G. Prekas, T. Dalamagas, M. Megraw, I. Grosse, T. Sellis, A.G. Hatzigeorgiou. Nucleic Acid Research (NAR), 38, 2010 Full text
Ranking and Clustering Web Services using Multi-Criteria Dominance Relationships. Dimitrios Skoutas, Dimitris Sacharidis, Alkis Simitsis, Timos Sellis. IEEE Transactions on Services Computing, Special issue on Query Models and Efficient Selection of Web Services (to appear), 2010

2009

Representing Context-Dependent Information in Cultural Collections. M. Gergatsoulis, P. Lilis, I. Lourdi, C. Papatheodorou. International Journal of Semantic Computing, Volume: 3(2), Pages: 255-276, 2009 Full text
Developing query patterns. Constantopoulos P., Dritsou V. & Foustoucos E. Research and Advanced Technology for Digital Libraries, Volume: 5714/2009, Pages: 119-124, 2009 Full text
Accurate microRNA target prediction correlates with protein repression levels. Manolis Maragkakis, Panagiotis Alexiou, Giorgio L Papadopoulos, Martin Reczko, Theodore Dalamagas, George Giannopoulos, George Goumas, Evangelos Koukis, Kornilios Kourtis, Victor A Simossis, Praveen Sethupathy, Thanasis Vergoulis, Nectarios Koziris, . BMC Bioinformatics, 10, 2009 Full text
Semantic Integration of Collection Description: Combining CIDOC/CRM and Dublin Core Collections Application Profile. I. Lourdi, C. Papatheodorou, M. Doerr . D-Lib Magazine, Vol. 15(7/8), 2009 Full text
Solving differential equations with constructed neural networks. Tsoulos, I., Gavrilis, D. & Glavas, E.. Neurocomputing, 72, Issues 10-12, 2385-2391, 2009 Full text
Metadata Interoperability in Public Sector Information. Bountouri, L., Papatheodorou, C., Soulikias, V. & Stratis, M.. Journal of Information Science, 35, 204 - 231. , 2009
DCC&U: An Extended Digital Curation Lifecycle Model. Constantopoulos, P., Dallas, C., Androutsopoulos, I., Angelis, S., Deligiannakis, A., Gavrilis, D., Kotidis, Y. & Papatheodorou, C.. The International Journal of Digital Curation, 4, Issue 1, 34-45, 2009 Full text
k-Anonymity in the Presence of External Databases. Dimitris Sacharidis, Kyriakos Mouratidis, Dimitris Papadias. IEEE Transactions on Knowledge and Data Engineering (TKDE). 99(1) , 2009 Full text
DIANA-microT web server: elucidating microRNA functions through target prediction. Maragkakis M, Reczko M, Simossis VA, Alexiou P, Papadopoulos GL, Dalamagas T, Giannopoulos G, Goumas G, Koukis E, Kourtis K, Vergoulis T, Koziris N, Sellis T, Tsanakas P, Hatzigeorgiou AG. Nucleic Acids Research (NAR) volume 37, 2009 Full text
Containment of Partially Specified Tree-Pattern Queries in the Presence of Dimension Graphs. Dimitri Theodoratos, Pawel Placek, Theodore Dalamagas, Stefanos Souldatos, Timos Sellis. VLDB Journal 18 (1): 233-254, 2009 Full text
Hierarchically Compressed Wavelet Synopses. Dimitris Sacharidis, Antonios Deligiannakis, Timos Sellis. VLDB Journal. 18(1): 203-231, 2009 Full text
Ontology-driven Conceptual Design of ETL Processes using Graph Transformations. Dimitrios Skoutas, Alkis Simitsis, Timos Sellis. LNCS Journal on Data Semantics (JoDS), Special issue on , 2009

2008

Exploring usefulness and usability in the evaluation of open access digital libraries. Tsakonas G., Papatheodorou C. . Information Processing and Management: an International Journal, Volume: 44 (3), Pages: 1234-1250, 2008 Full text
Indexing Views to Route Queries in a PDMS. Lefteris Sidirourgos, Giorgos Kokkinidis, Theodore Dalamagas, Vassilis Christophides, Timos Sellis. Distributed and Parallel Databases 23(1): 45-68, 2008 Full text
Updating Multidimensional XML documents. Nikolaos Fousteris, Manolis Gergatsoulis, Yannis Stavrakas. International Journal of Wed Information Systems, Vol.4, Number 2, pages 142-164, 2008 Full text

2007

A multi-layer metadata schema for digital folklore collections. Lourdi I., Papatheodorou C., Nikolaidou M.. Journal of Information Science, Volume: 33 (2), Pages: 197-213, 2007
Named Entity Recognition in Greek Texts with an Ensemble of SVMs and Active Learning. Lucarreli G., Vasilakos X. & Androutsopoulos I. International Journal on Artificial Intelligence Tools (IJAIT), Volume: 16 (6), Pages: 1015 - 1045, 2007

Technical Reports

2022

ATRAPOS: Evaluating Metapath Query Workloads in Real Time. Serafeim Chatzopoulos, Thanasis Vergoulis, Dimitrios Skoutas, Theodore Dalamagas, Christos Tryfonopoulos, Panagiotis Karras. CoRR abs/2201.04058, 2022 Full text
QueryER: A Framework for Fast Analysis-Aware Deduplication over Dirty Data. Giorgos Alexiou, George Papastefanatos, Vassilis Stamatopoulos, Georgia Koutrika, Nectarios Koziris. TR.2022-1, 2022 Full text

2020

BIP4COVID19: Releasing impact measures forarticles relevant to COVID-19. Thanasis Vergoulis, Ilias Kanellos, Serafeim Chatzopoulos, Danae Pla Karidi, Theodore Dalamagas. bioRxiv 2020.04.11.037093; doi: https://doi.org/10.1101/2020.04.11.037093, 2020 Full text
National Plan for Open Science. Spiros Athanasiou; Vasilis Amiridis; Maria Gavriilidou; Evangelos Gerasopoulos; Alexandros Dimopoulos; Georgina Kaklamani; Fotis Karagiannis; Iraklis Klampanos; Dimitra Kondili; Kostas Koumantaros; Panos Konstantopoulos; Katerina Lenaki; Angelos Liki. TR2020-OSP, 2020 Full text

2015

A Query Language for Multi-version Data Web Archives. Marios Meimaris, George Papastefanatos, Stratis Viglas, Yannis Stavrakas and Christos Pateritsas. TR-IMIS-2015-2, 2015 Full text
Boosting the Efficiency of Large-scale Entity Resolution with Enhanced Meta-blocking. George Papadakis, George Papastefanatos, Themis Palpanas. TR-IMIS-2015-1, 2015 Full text

2014

Efficient Identification of Implicit Facts in Incomplete OWL Knowledge Bases. John Liagouris and Manolis Terrovitis. Technical Report TR-IMIS-2014-1, 2014 Full text

2011

Gov 2.0 on a tight budget: The case of geodata.gov.gr. Spiros Athanasiou, Kaliope Pediaditi, Konstantinos Nedas, Prodromos Tsiavos. TR20110129, 2011 Full text
Privacy Preservation by Disassociation. Manolis Terrovitis, John Liagouris, Nikos Mamoulis, Spiros Skiadopoulos. TR-IMIS-2011-1, 2011 Full text

2010

Efficient Answering of Set Containment Queries for Skewed Item Distributions. Manolis Terrovitis, Panagiotis Bouros, Panos Vassiliadis, Timos Sellis, Nikos Mamoulis. TR-IMIS-2010-1, 2010 Full text

PhD Theses

2023

Adaptive indexing for interactive visual exploration and analytics. Stavros Maroulis. NTUA (supervisor: Prof. Yannis Vassiliou), July 2023, 2023 Full text

2022

2021

Managing Evolution in Web Data through Complex Changes. Theodora Galani. NTUA (supervisor: Prof. Yannis Vassiliou), November 2021, 2021

2020

Μέθοδοι Κατάταξης και Μετρικές Απήχησης Επιστημονικών Δημοσιεύσεων. Ηλίας Κανέλλος. National Technical University of Athens, Greece, 2020 Full text
Scalable Indexing and Exploration of Big Time Series Data. Georgios Chatzigeorgakidis. PhD Thesis, 2020 Full text

2018

Managing, Querying and Analyzing Big Data on the Web. Marios Meimaris. University of Thessaly (supervisor prof. I. Anagnostopoulos), 2018 Full text

2016

2014

Advanced search and data management services in Life Sciences. Thanasis Vergoulis. National Technical University of Athens, Greece, 2014 Full text
Shortest-path algorithms on road networks and real-world applications. Alexandros Efentakis. PhD Thesis, School of Electrical and Computer Engineering, National Technical University of Athens, Greece, 2014 Full text

2013

Methods on retrieving sources and data from the Web, for supporting scientific innovation. Giorgos Giannopoulos. National Technical University of Athens, Greece, 2013 Full text

2008

Discovery and Integration of Data and Services in the Semantic Web. Dimitrios Skoutas. PhD Thesis, School of Electrical and Computer Engineering, National Technical University of Athens, 2008

Diploma Theses

2015

Υλοποίηση μηχανισμού κατάταξης δημοσιεύσεων σχετικών με βιομόρια micro-RNA. Βασιλική Βλαχοκυριάκου. Department of Informatics and Telecommunications, National and Kapodistrian University of Athens, Greece, 2015 Full text
Detecting Influential Users in Twitter. Evangelos Karakolis. School of Electrical and Computer Engineering, NTUA, 2015

2014

Big Geospatial Data Analysis with Array Technologies for Agricultural Applications. Thanasis Karmas. Diploma Thesis, School of Electrical and Computer Engineering, National Technical University of Athens, Greece, 2014 Full text
Analysing and Detecting Spam Users in Twitter. Danae Pla Karidi. School of Electrical and Computer Engineering, NTUA, 2014, 2014

2013

Techniques for the integration of semantic geospatial data. Thomas Maroulis. Diploma Thesis, School of Electrical and Computer Engineering, National Technical University of Athens, Greece, 2013 Full text
AthensTreeMap: Crowdsourcing Urban Vegetation. Stylianos Kalogridis. MSc. Thesis, School of Rural and Surveying Engineering, National Technical University of Athens, Greece, 2013 Full text

2012

Approximate string matching for spam management in email servers. Christos Kopsidas. Department of Informatics and Telecommunications, National and Kapodistrian University of Athens, Greece, 2012
Querying scientific databases, considering the historic evolution of data. Ilias Kanellos. Department of Computer Engineering and Informatics, National Technical University of Athens, Greece, 2012 Full text
Searching the Web through Twitter. Athanasios Andreou, Dimitrios Sermpos. School of Electrical and Computer Engineering, NTUA, 2012, 2012 Full text
"Internet Radio Switch" add-on for Firefox. Konstantinos Spanakis. School of Electrical and Computer Engineering, NTUA, 2012, 2012

2011

Implementation of Map-Reduce on Spatial Data using the Dijkstra Algorithm on Web Clients. Dimitris Theodorakis. School of Electrical and Computer Engineering, NTUA, 2011 Full text
Term suggestion techniques for Scientific Databases. Petsios Theofilos. School of Electrical and Computer Engineering, NTUA, 2011 Full text
Mobile Geoblogging Client - Developing a Social Geoblogging Application for Android. Konstantinos Papagiannopoulos. School of Electrical and Computer Engineering, NTUA, 2011
Geotyping - Online Geocoding of Narratives. Sokratis Vidros. School of Electrical and Computer Engineering, NTUA, 2011
Creation of a Multi-Modal Tripplanner for Visitors to Athens. Michail Tziotis. Postgraduate Program in Geoinformatics, School of Rural and Surveying Engineering, NTUA, 2011

2010

Transformation of cultural heritage XML metadata in CIDOC CRM ontology. Orestis Polychronakis. School of Electrical and Computer Engineering, NTUA, 2010 Full text
Application of Object Relational Mapping on the environment for the management of webpages of courses of NTUA. Iraklis Psaroudakis. School of Electrical and Computer Engineering, NTUA, 2010 Full text
Geographic information extraction from user contributed data. Savvas Georgiou. School of Electrical and Computer Engineering, NTUA, 2010 Full text
Geoblogging - Creating a Semantically Rich World Map. Charikleia Lontou. Postgraduate Program in Geoinformatics, School of Rural and Surveying Engineering, NTUA, 2010
Development a Geo Microbogging Application for Android. Nikolaos Tsiougkos. School of Electrical and Computer Engineering, NTUA, 2010 Full text
Geocrowd Explorer : Augmented Reality Application For Consumption of Geoblogging Content. Stelios Doudalis. School of Electrical and Computer Engineering, NTUA, 2010 Full text
Georeferencing and routing tool for survey management. Nikolaos Kostoulas. School of Electrical and Computer Engineering, NTUA, 2010 Full text
Advanced Web Application for Management of Biosciences Data. Γιώργος Πρέκας. Σχολή Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών, ΕΜΠ, 2010 Full text
Approximate Sequence Matching with MapReduce. Δανάη Κούτρα. Σχολή Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών, ΕΜΠ, 2010 Full text
Implementation of suffix tree construction using Hadoop MapReduce. Alexandros Konstantinakis - Karmis. Σχολή Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών, ΕΜΠ, 2010 Full text
DIANA 2.0: Advanced web application for the management of bioscience data. Γεωργία Φωτοπούλου. Σχολή Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών, ΕΜΠ, 2010 Full text

2009

Real Estate Agent as a web application. Michalis Paignigiannis. MSc. Thesis, School of Rural and Surveying Engineering, National Technical University of Athens, Greece, 2009 Full text
BENZInet: Geospatial comparison and sampling of gas prices. Katerina Papadaki. MSc. Thesis, School of Rural and Surveying Engineering, National Technical University of Athens, Greece, 2009 Full text
Alternative internet oriented survey conducting techniques based on mobile phones. Paris - Mouzafar Morali. School of Electrical and Computer Engineering, NTUA, 2009 Full text
Information Management using Mobile Devices. Antonios Lampadaridis. School of Electrical and Computer Engineering, NTUA, 2009 Full text
Storing and querying M-XML documents using relational databases. Ionas Iona. School of Electrical and Computer Engineering, NTUA, 2009 Full text
Ανάκτηση Πληροφορίας Στον Ιστό με Χρήση Ταξινόμησης Όψεων και Συσταδοποίησης. Παναγιώτα Γεωργίου . Σχολή Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών, ΕΜΠ, 2009 Full text
Τεχνικές ταξινόμησης αποτελεσμάτων μηχανών αναζήτησης με βάση την ιστορία του χρήστη. Αντώνιος Νικολαΐδης . Σχολή Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών, ΕΜΠ, 2009 Full text
Εργαλείο Συλλογής και Οργάνωσης Γνώσης με Μηχανισμούς Μετα-Αναζήτησης στον Ιστό. Αργύρης Κόλλιας. Σχολή Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών, ΕΜΠ, 2009 Full text
Σύστημα Οργάνωσης Γνώσης για Κυβερνητική Διαδικτυακή Πύλη. Στραβοράβδη Μ.. Οικονομικό Πανεπιστήμιο Αθηνών, Τμήμα Πληροφορικής, 2009 Full text
Ροή εργασίας ψηφιακής διατήρησης σ’ ένα σύστημα ψηφιακής βιβλιοθήκης. Κρουστάλης Δ.. Οικονομικό Πανεπιστήμιο Αθηνών, Τμήμα Πληροφορικής, 2009
Εναρμόνιση και συγχώνευση οντολογιών. Χασάπη Φ.. Οικονομικό Πανεπιστήμιο Αθηνών, Τμήμα Πληροφορικής, 2009 Full text

2008

Semi-automatic Geocoding for Prersistent Web pages. Charikleia Lontou. School of Electrical and Computer Engineering, NTUA, 2008 Full text
Positioning and Tracking utilizing Wireless Networks. Γιώργος Γερακάκης. Σχολή Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών, ΕΜΠ, 2008 Full text
Ανταλλαγή Δεδομένων σε Αδόμητα Δίκτυα Ομότιμων Κόμβων με χρήση Οντολογιών. Κωνσταντίνος Καρανάσος. Διπλωματική Εργασία, Σχολή Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών , ΕΜΠ, 2008 Full text
Friends in Range. Georgios Lamprianidis. School of Electrical and Computer Engineering, NTUA, 2008 Full text

Books

2020

Linked Data Visualization Book Techniques, Tools and Big Data . Laura Po, Nikos Bikakis, Federico Desimoni and George Papastefanatos. Series in Synthesis Lectures on the Semantic Web, In Morgan & Claypool Publishers, 2020. (ISBN: 9781681737256 (softcover) | 9781681737263 (ebook) ISBN: 9781681737270 (hardcover), 2020 Full text
Cyber security and its impact on Connected Autonomous Vehicles safety: State-of-the-art, policy needs and challenges. Christos Katrakazas, Athanasios Theofilatos, George Papastefanatos, Jerome Härri, Costas Antoniou. Book Chapter in Volume “Policy Implications of Autonomous Vehicles”, Elsevier, Advances in Transport Policy and Planning, Volume 5, Pages 73-94, 2020 Full text
Trajectory Detection and Summarization over Surveillance Data Streams. Kostas Patroumpas, Eva Chondrodima, Nikos Pelekis, Yannis Theodoridis. Big Data Analytics for Time-Critical Mobility Forecasting, Vouros G. et al. (eds), Springer Nature Switzerland AG, 2020 Full text

2019

Socioscope - A visual analytics platform for open socioeconomic data. George Papastefanatos, Stavros Maroulis. Chapter in Book “Transformations of Protest in Greece”, Stathopoulou, T (ed.), Papazisis publishers & NCSR 2019, 2019 Full text

2016

Schema Evolution for Databases and Data Warehouses. Petros Manousis, Panos Vassiliadis, Apostolos Zarras, George Papastefanatos. Lecture Notes in Business Information Processing (253), Springer 2016, ISBN 978-3-319-39242-4, 2016 Full text

2015

Managing Geospatial Linked Data in the GeoKnow Project. Jens Lehmann, Spiros Athanasiou, Andreas Both, Alejandra Garcia Rojas, Giorgos Giannopoulos, Daniel Hladky, Jon Jay Le Grange, Axel-Cyrille Ngonga-Ngomo, Mohamed Ahmed Sherif, Claus Stadler, Matthias Wauer, Patrick Westphal. The Semantic Web in Earth and Space Science. Current Status and Future Directions, Vol. 20 of Studies on the Semantic Web. IOS Press., 2015 Full text

2013

The XML and Semantic Web Worlds: Technologies, Interoperability and Integration. A survey of the State of the Art. Bikakis Nikos, Tsinaraki Chrisa, Gioldasis Nektarios, Stavrakantonakis Ioannis, Christodoulakis Stavros. Semantic Hyper/Multi-media Adaptation: Schemes and Applications, Springer 2013, 2013 Full text

2012

Cultivating Open Data Ecologies: Lessons from the Implementation of the INSPIRE Directive. Prodromos Tsiavos, Kaliope Pediaditi, Konstantinos Nedas, Spiros Athanasiou. In “Geographic Data and the Law: Defining New Challenges”, Leuven University Press, 2012 Full text

2011

Proceedings of the 12th International Symposium on Advances in Spatial and Temporal Databases. Pfoser, D., Tao, Y., Mouratidis, K., Nascimerento, M., Mokbel, M., Shekhar, S., and Huang, Y.. Springer-Verlag, 2011 Full text

2010

Privacy preservation in the publication of sparse multidimensional data.. Manolis Terrovitis, Nikos Mamoulis, and Panos Kalnis. In Privacy-Aware Knowledge Discovery: Novel Applications and New Techniques, Francesco Bonchi, Elena Ferrari, Eds, Chapman & Hall/CRC Data Mining and Knowledge Discovery Series, CRC press, 2010

2009

Privacy in the publication and exchange of data. Georgios Gratsias, Dimitris Sacharidis, Manolis Terrovitis and Timos Sellis. In Privacy and Information and Communication Technologies: Technical and Legal Issues, C. Lambrinoudakis, L. Mitrou, S. Gritzalis, S. K. Katsikas, Eds, Athens, Greece, Papasotiriou Pubs. (in Greek), 2009