Dr. George Konstantinidis

About Me

I am Dr. George Konstantinidis, Associate professor at the School of Electronics and Computer Science, at the University of Southampton, UK. My research focuses on data management, data privacy, data integration and knowledge graphs.

Research

My research explores theoretical boundaries and innovative applications in the intersection of data management and AI.

Publications

Journal Articles

• Filipczuk, D., Gerding, E. H., & Konstantinidis, G. (2024). Graph theory for consent management: A new approach for complex data flows. SIGMOD Record, 53(1), 55–63.
• Pareti, P., Konstantinidis, G., & Mogavero, F. (2022). Satisfiability and containment of recursive SHACL. Journal of Web Semantics, 74, 100721.
• Alhazmi, A., Blount, T., & Konstantinidis, G. (2022). ForBackBench: A benchmark for chasing vs. query rewriting. Proceedings of the VLDB Endowment, 15(8), 1519-1532.
• Konstantinidis, G., Holt, J., & Chapman, A. (2021). Enabling personal consent in databases. Proceedings of the VLDB Endowment, 15(2), 375-387.
• Konstantinidis, G., Chapman, A., Weal, M. J., Alzubaidi, A., Ballard, L. M., & Lucassen, A. M. (2020). The need for machine-processable agreements in health data management. Algorithms, 13(87).
• Chapman, A., Simperl, E., Koesten, L., Konstantinidis, G., Ibáñez-Gonzalez, L.-D., Kacprzak, E., & Groth, P. (2020). Dataset search: A survey. The VLDB Journal, 29(1), 215-272.
• Nikolaou, C., Kostylev, E. V., Konstantinidis, G., Kaminski, M., Cuenca Grau, B., & Horrocks, I. (2019). Foundations of ontology-based data access under bag semantics. Artificial Intelligence, 274, 91-132.
• Konstantinidis, G., & Ambite, J. L. (2014). Optimizing the chase: Scalable data integration under constraints. Proceedings of the VLDB Endowment, 7(14).
• Flouris, G., Konstantinidis, G., Antoniou, G., & Christophides, V. (2012). Formal foundations for RDF/S KB evolution. Knowledge and Information Systems, 35, 153–191.

Conference and Workshop Papers

• Konstantinidis, G., & Mogavero, F. (2024) Bag Containment of Join-on-Free Queries Proceedings of the 28th International Conference on Database Theory (ICDT 2025). To Appear.
• Yumusak, S., Gheisari, S., Salas, J. O., Moqurrab, S. A., Ibáñez, L. D., & Konstantinidis, G. (2024) Data Sharing Negotiation and Contracting. Proceedings of the 23rd International Semantic Web Conference (2024).
• Gheisari, S., Yumusak, S., Salas, J. O., Ibáñez, L. D., Konstantinidis, G., & Roman, D. (2024) Towards modular data marketplaces. RuleML+RR’24: Companion Proceedings of the 8th International Joint Conference on Rules and Reasoning (2024).
• Filipczuk, D., Gerding, E. H., & Konstantinidis, G. (2023) Consent management in data workflows: A graph problem. Proceedings of the 26th International Conference on Extending Database Technology (EDBT) (2023). ACM SIGMOD Research Highlights Award.
• Ibáñez, L.-D., & Konstantinidis, G. (2023) Selling decentralized knowledge graphs. Trusting Decentralised Knowledge Graphs and Web Data Workshop, European Semantic Web Conference, Hersonissos, Greece (2023).
• Konstantinidis, G., Ibáñez, L. D., & Roman, D. (2023) Data Marketplaces in the AI Economy. Symposium on AI, Data and Digitalization (SAIDD 2023) (2023).
• Alhazmi, A. G., Trejo, J. S., & Konstantinidis, G. (2023) ForBackBench: From Database to Semantic Web mappings and back. Proceedings of the 22nd International Semantic Web Conference (2023).
• Huang, W., Tiropanis, T., & Konstantinidis, G. (2023) A Dual-Layer Privacy-Preserving Federated Learning Framework. Web Information Systems Engineering – WISE 2023, Lecture Notes in Computer Science, vol 14306. Springer, Singapore (2023).
• Alhazmi, A., & Konstantinidis, G. (2022) OBDA vs forward chaining: The ForBackBench framework. Proceedings of the 21st International Semantic Web Conference (2022). Best Demo Award.
• Huang, W., Tiropanis, T., & Konstantinidis, G. (2022) Federated learning-based IoT intrusion detection on non-IID data. 2022 Global Internet of Things Summit (GIoTS) (2022).
• Pareti, P., & Konstantinidis, G. (2022) A review of SHACL: From data validation to schema reasoning for RDF graphs. Reasoning Web International Summer School, 115-144 (2022).
• Anning, S., Konstantinidis, G., & Webber, C. (2021) Social science for natural language processing: A hostile narrative analysis prototype. Proceedings of the 13th ACM Web Science Conference 2021, 102-111 (2021). Honourable mention paper.
• Pareti, P., Konstantinidis, G., Mogavero, F., & Norman, T. J. (2020) SHACL satisfiability and containment. Proceedings of the 19th International Semantic Web Conference, 474-493. Springer, Cham (2020).
• Pareti, P., Konstantinidis, G., Norman, T. J., & Şensoy, M. (2020) Rule applicability on RDF triplestore schemas. Workshop on AI for Internet of Things at the 29th International Joint Conference on Artificial Intelligence and the 17th Pacific Rim International Conference on Artificial Intelligence (IJCAI-PRICAI 2020), Yokohama, Japan.
• Lyle, K., Lucassen, A., Ballard, L., Hardcastle, F., Weal, M., Chapman, A., & Konstantinidis, G. (2020) The secret life of immortal data. In Proceedings of the 12th ACM Conference on Web Science Companion (pp. 89–90).
• Pareti, P., Konstantinidis, G., & Norman, T. J. (2019) A policy editor for semantic sensor networks. Proceedings of the 18th International Semantic Web Conference (ISWC 2019), Auckland, New Zealand, October 26–30.
• Pareti, P., Konstantinidis, G., Norman, T. J., & Şensoy, M. (2019) SHACL constraints with inference rules. Proceedings of the 18th International Semantic Web Conference (ISWC 2019). Lecture Notes in Computer Science, vol. 11778. Springer, Cham.
• Soylu, A., Elvesæter, B., Turk, P., Roman, D., Corcho, O., Simperl, E., Konstantinidis, G., & Lech, T. C. (2019) Towards an ontology for public procurement based on the open contracting data standard. Conference on e-Business, e-Services and e-Society, 230-237. Springer, Cham.
• Konstantinidis, G., & Mogavero, F. (2019) Attacking Diophantus: Solving a special case of bag containment. Proceedings of the 38th ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems (PODS 2019).
• Konstantinidis, G. (2019) The need for data sharing agreements in data management. Semantic Web Technologies for Health Data Management Workshop, Proceedings of the 18th International Semantic Web Conference (pp. 5–8).
• Soylu, A., Corcho, O., Simperl, E., Roman, D., Martínez, F. Y., Taggart, C., Makgill, I., Elvesæter, B., Symonds, B., McNally, H., Konstantinidis, G., Zhao, Y., & Lech, T. C. (2018) Towards integrating public procurement data into a semantic knowledge graph. The 21st International Conference on Knowledge Engineering and Knowledge Management, EKAW 2018.
• Nikolaou, C., Kostylev, E. V., Konstantinidis, G., Kaminski, M., Grau, B. C., & Horrocks, I. (2017) The bag semantics of ontology-based data access. Proceedings of the Twenty-Sixth International Joint Conference on Artificial Intelligence, IJCAI 2017, Melbourne, Australia, August 19-25, 2017.
• Benedikt, M., Konstantinidis, G., Mecca, G., Motik, B., Papotti, P., Santoro, D., & Tsamoura, E. (2017) Benchmarking the chase. Proceedings of the 36th ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems (PODS) 2017.
• Ambite, J. L., Tallis, M., Alpert, K., Keator, D. B., King, M., Landis, D., Konstantinidis, G., Calhoun, V. D., Potkin, S. G., Turner, J. A., & Wang, L. (2015) SchizConnect: Virtual data integration in neuroimaging. In Data Integration in the Life Sciences (pp. 37-51). Springer International Publishing.
• Konstantinidis, G., & Ambite, J. L. (2013) Scalable containment for unions of conjunctive queries under constraints. Proceedings of the 5th International Workshop on Semantic Web Information Management (SWIM 2013), in conjunction with ACM SIGMOD 2013.
• Pérez-Urbina, H., Rodríguez-Díaz, E., Grove, M., Konstantinidis, G., & Sirin, E. (2012) Evaluation of query rewriting approaches for OWL 2. Proceedings of the 2012 Joint Workshop on Scalable and High-Performance Semantic Web Systems (SSWS+HPCSW 2012), collocated with ISWC 2012.
• Konstantinidis, G., & Ambite, J. L. (2012) Optimizing query rewriting for multiple queries Proceedings of the 9th Workshop on Information Integration on the Web (IIWeb 2012), in conjunction with ACM SIGMOD 2012.
• Konstantinidis, G. (2012) Towards scalable data integration under constraints. In Joint EDBT/ICDT Ph.D. Workshop (Berlin, Germany). Best Paper Award.
• Konstantinidis, G., & Ambite, J. L. (2011) Scalable query rewriting: A graph-based approach. Proceedings of the ACM SIGMOD International Conference on Management of Data, SIGMOD'11, June 12-16, 2011, Athens, Greece.
• Konstantinidis, G., Flouris, G., Antoniou, G., & Christophides, V. (2008) On RDF/S ontology evolution. LNCS Post-Proceedings of Joint ODBIS & SWDB Workshop on Semantic Web, Ontologies, Databases (pp. 21–42).
• Konstantinidis, G., Flouris, G., Antoniou, G., & Christophides, V. (2008) A formal approach for RDF/S ontology evolution. Proceedings of the 18th European Conference on Artificial Intelligence, ECAI'2008, Patras, Greece.
• Konstantinidis, G., Flouris, G., Antoniou, G., & Christophides, V. (2007) Ontology evolution: A framework and its application to RDF. Proceedings of the Joint ODBIS & SWDB Workshop on Semantic Web, Ontologies, Databases, colocated with VLDB 2007, September 23–24.

Contact

Email: g.konstantinidis@soton.ac.uk

Tel: +44 23 8059 2978

Office 3021, Building 32 (EEE), School of Electronics and Computer Science, University of Southampton. Highfield. Southampton, SO17 1BJ, United Kingdom

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