Publications

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Conferences/Workshops

2020

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

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
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

2017

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

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
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

2015

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
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

2014

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
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
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

Journals

2022

Relational schema optimization for RDF-based knowledge graphs. George Papastefanatos, Marios Meimaris, Panos Vassiliadis. Inf. Syst. 104: 101754, 2022 Full text

2020

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

2018

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

2016

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

2014

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
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

Technical Reports

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

PhD Theses

2018

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

Diploma Theses

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Books

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