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Home Page of Giorgos Flouris

 

General information

I am currently a Principal Researcher (Grade B') in FORTH-ICS. My research interests lie mainly in the broad areas of Knowledge Representation and Reasoning, Artificial Intelligence, the Semantic Web and Argumentative Persuasion. I have been involved in several projects (mostly European) and published more than 100 papers in various venues. I have received the Best Paper Award in STAIRS-06, the Best Student Paper Award in ISWC-09 and ISWC-15, and the Best Workshop Paper Award in SSWS-18.

For more info, you may download a short bio (English, Greek), or a full CV (English, Greek).

Contact information

Foundation for Research and Technology - Hellas (FO.R.T.H.)
Institute of Computer Science (I.C.S.)
Information Systems Laboratory (I.S.L.)
Vassilika Vouton
P.O. Box 1385, GR-70013, Heraklion, Crete
Greece
Telephone: +30 2810 391674
Email: fgeo “AT” ics “DOT” forth “DOT” gr

Publications

A complete and up-to-date list of my publications appears below. A similar list can be found in google scholar and DBLP. A list maintained by the ICS staff appears here.

Journal Publications

[1]                Nikoleta Tsampanaki, Theodore Patkos, Giorgos Flouris, Dimitris Plexousakis. Revising Event Calculus Theories to Recover from Unexpected Observations. Annals of Mathematics and Artificial Intelligence (AMAI), 2019.
[download (pdf)]

[2]                Giorgos Flouris, Antonis Bikakis. A Comprehensive Study of Argumentation Frameworks with Sets of Attacking Arguments. International Journal of Approximate Reasoning (IJAR), 109, 2019.
[download (pdf)]

[3]                Evaggelia Pitoura, Panayiotis Tsaparas, Giorgos Flouris, Irini Fundulaki, Panagiotis Papadakos, Serge Abiteboul, Gerhard Weikum. On Measuring Bias in Online Information. In SIGMOD Record, 46(4), pages 16-21, 2017. Also published in arXiv:1704.05730, 2017.
[download SIGMOD version (pdf)], [download arXiv version (pdf)]

[4]                Evangelia Daskalaki, Giorgos Flouris, Irini Fundulaki, Tzanina Saveta. Instance Matching Benchmarks in the Era of Linked Data. Journal of Web Semantics. Journal of Web Semantics: Science, Services and Agents on the World Wide Web, 39, 2016.
Also appeared in the Journal Track of the 16th International Semantic Web Conference (ISWC-17), 2017.
[download (pdf)]

[5]                Yannis Marketakis, Nikos Minadakis, Haridimos Kondylakis, Konstantina Konsolaki, Georgios Samaritakis, Maria Theodoridou, Giorgos Flouris, Martin Doerr. X3ML Mapping Framework for Information Integration in Cultural Heritage and Beyond. International Journal on Digital Libraries (IJDL), Special Issue on “Extending, Mapping and Focusing the CIDOC CRM”, pages 1-19, 2016
[download (pdf)]

[6]                Martin Homola, Theodore Patkos, Giorgos Flouris, Josef Frtus, Alexander Simko, Jan Sefranek, Dimitra Zografistou, Martin Balaz. Resolving Conflicts in Knowledge for Ambient Intelligence. The Knowledge Engineering Review (KER), 30(05):455-513, 2015.
[download (pdf)]

[7]                Fouad Zablith, Grigoris Antoniou, Mathieu d’ Aquin, Giorgos Flouris, Haridimos Kondylakis, Enrico Motta, Dimitris Plexousakis, Marta Sabou. Ontology Evolution: A Process Centric Survey. Knowledge Engineering Review (KER), 30(01):45-75, 2015.
[download (pdf)]

[8]                Christos Strubulis, Giorgos Flouris, Yannis Tzitzikas, Martin Doerr. A Case Study on Propagating and Updating Provenance Information Using the CIDOC CRM. International Journal on Digital Libraries (IJDL), 15(1):27-51, 2014.
[download (pdf)]

[9]                Marcio M. Ribeiro, Renata Wassermann, Giorgos Flouris, Grigoris Antoniou. Minimal Change: Relevance and Recovery Revisited. Artificial Intelligence (AI) Journal, 201:59-80, 2013.
[download (pdf)]

[10]             Vicky Papavasileiou, Giorgos Flouris, Irini Fundulaki, Dimitris Kotzinos, Vassilis Christophides. High-Level Change Detection in RDF(S) KBs. Transactions on Database Systems (TODS), 38(1), 2013.
[download (pdf)]

[11]             Giorgos Flouris, George Konstantinidis, Grigoris Antoniou, Vassilis Christophides. Formal Foundations for RDF/S KB Evolution. International Journal on Knowledge and Information Systems (KAIS), 35(1), pages 153-191, 2013.
[download (pdf)]

[12]             Giorgos Flouris, Dimitris Manakanatas, Haridimos Kondylakis, Dimitris Plexousakis, Grigoris Antoniou. Ontology Change: Classification and Survey. The Knowledge Engineering Review (KER), 23(2), pages 117-152, 2008.
[download (pdf)]

[13]             Yannis Tzitzikas, Vassilis Christophides, Giorgos Flouris, Dimitris Kotzinos, Hannu Markkanen, Dimitris Plexousakis, Nicolas Spyratos. Emergent Knowledge Artefacts for Supporting Trialogical E-Learning. International Journal of Web-Based Learning and Teaching Technologies (IJWLTT), 2(3), pages 16-38, 2007.
[download (pdf)]

[14]             Giorgos Flouris. On Belief Change in Ontology Evolution. AI Communications Journal (AI-Com), 19(4), pages 395-397, PhD Thesis Summary, 2006.
[download (pdf)]

Peer-reviewed Conference and Workshop Publications

[1]                Giorgos Flouris, Theodore Patkos, Ioannis Chrysakis, Ioulia Konstantinou, Nikolay Nikolov, Panagiotis Papadakos, Jeremy Pitt, Dimitru Roman, Alexandru Stan, Chrysostomos Zeginis. Towards a collective awareness platform for privacy concerns and expectations. In Proceedings of the 26th International Conference on Cooperative Information Systems (CoopIS-18), part of the OTM Confederated International Conferences: On the Move to Meaningful Internet Systems, pages 135-152, 2018.
[download (pdf)]

[2]                Vassilis Papakonstantinou, Irini Fundulaki, Giorgos Flouris. Assessing Linked Data Versioning Systems: The Semantic Publishing Versioning Benchmark. In Proceedings of the 12th International Workshop on Scalable Semantic Web Knowledge Base Systems (SSWS-18), chosen as a Best Workshop Paper and selected for inclusion also in E. Demidova, A.J. Zaveri, E. Simperl (Eds.), Emerging Topics in Semantic Technologies, ISWC 2018 Satellite Events, ISBN: 978-3-89838-736-1, AKA Verlag Berlin, 2018.
[download (pdf)]

[3]                Dimitra Zografistou, Giorgos Flouris, Theodore Patkos, Dimitris Plexousakis. Implementing the ArgQL Query Language. In Proceedings of the 7th International Conference on Computational Models of Argument (COMMA-18), short paper, 2018.
[download (pdf)]

[4]                Tzanina Saveta, Irini Fundulaki, Giorgos Flouris, Axel-Cyrille Ngonga Ngomo. SPgen: A Benchmark Generator for Spatial Link Discovery Tools. In Proceedings of the 17th International Semantic Web Conference (ISWC-18), 2018.
[download (pdf)]

[5]                Prodromos Lilitsis, Theodore Patkos, Giorgos Flouris, Dimitris Plexousakis. Travel Companion: A mobile system for trip assistance relying on Artificial Intelligence and Augmented Reality. In Proceedings of the 10th Hellenic Conference on Artificial Intelligence (SETN-18), poster presentation, 2018.
[download (pdf)]

[6]                Filippos Gouidis, Theodoros Patkos, Giorgos Flouris, Dimitris Plexousakis. Dynamic Repairing A*: a Plan-Repairing Algorithm for Dynamic Domains. In Proceedings of the 10th International Conference on Agents and Artificial Intelligence (ICAART-18), Short Paper, 2018.
[download (pdf)]

[7]                Nikoleta Tsampanaki, Giorgos Flouris, Theodore Patkos. Steps Towards Commonsense-Driven Belief Revision in the Event Calculus. In Proceedings of the 13th International Symposium on Logical Formalizations of Commonsense Reasoning (Commonsense-17), 2017.
[download (pdf)]

[8]                Elisjana Ymeralli, Giorgos Flouris, Theodore Patkos, Dimitris Plexousakis. APOPSIS: A Web-based Platform for the Analysis of Structured Dialogues. In Proceedings of the 16th International Conference on Ontologies, DataBases, and Applications of Semantics (ODBASE-17), 2017
[download (pdf)]

[9]                Vassilis Papakonstantinou, Giorgos Flouris, Irini Fundulaki, Kostas Stefanidis, Yannis Roussakis. SPBv: Benchmarking Linked Data Archiving Systems. In Proceedings of the 2nd Workshop on Benchmarking Linked Data (BLINK-17), 2017.
[download (pdf)]

[10]             Tzanina Saveta, Giorgos Flouris, Irini Fundulaki, Axel-Cyrille Ngonga Ngomo. Benchmarking Link Discovery Systems for Geo-Spatial Data. In Proceedings of the 2nd Workshop on Benchmarking Linked Data (BLINK-17), 2017.
[download (pdf)]

[11]             Ioannis Chrysakis, Emmanouil Dermitzakis, Giorgos Flouris, Theodore Patkos, Dimitris Plexousakis. PRESS: A Publication REpository Semantic System. In Poster/Demo Proceedings of the 13th International Conference on Semantic Systems (SEMANTiCS-17), 2017.
[download paper (pdf)], [download poster (pdf)]

[12]             Giorgos Flouris, Theodore Patkos, Ilia Adami, Antonis Bikakis, Manos Dimitrakis, George Mathioudakis, Yannis Roussakis, Dimitris Plexousakis. Methinks: Enabling Sophisticated Comment Management in the Social Web. In Poster/Demo Proceedings of the 13th International Conference on Semantic Systems (SEMANTiCS-17), 2017.
[download paper (pdf)], [download poster (pdf)]

[13]             Dimitra Zografistou, Giorgos Flouris, Dimitris Plexousakis. ArgQL: A Declarative Language for Querying Argumentative Dialogues. In Proceedings of the International Joint Conference on Rules and Reasoning 2017 (RuleML+RR), as the Best Paper of the Doctoral Consortium, 2017.
[download (pdf)]

[14]             Argyro Avgoustaki, Giorgos Flouris, Irini Fundulaki, Dimitris Plexousakis. Provenance Management for Evolving RDF Datasets. In Proceedings of the ACM-W Europe womENcourage 2016 Celebration of Women in Computing, 2016.
[download paper (pdf)], [download poster (pdf)]

[15]             Tzanina Saveta, Evangelia Daskalaki, Giorgos Flouris, Irini Fundulaki, Axel-Cyrille Ngonga Ngomo. How well does your Instance Matching System Perform? Experimental Evaluation with LANCE. In Proceedings of the 1st Workshop on Benchmarking Linked Data (BLINK-16), 2016.
[download (pdf)]

[16]             Vassilis Papakonstantinou, Giorgos Flouris, Irini Fundulaki, Kostas Stefanidis, Yannis Roussakis. Versioning for Linked Data: Archiving Systems and Benchmarks. In Proceedings of the 1st Workshop on Benchmarking Linked Data (BLINK-16), 2016.
[download (pdf)]

[17]             Theodore Patkos, Giorgos Flouris, Antonis Bikakis. Symmetric Multi-Aspect Evaluation of Comments (Extended Abstract). In Proceedings of the 22nd European Conference on Artificial Intelligence (ECAI-16), Short Paper, 2016.
[download (pdf)]

[18]             Vassilis Papakonstantinou, Giorgos Flouris, Irini Fundulaki, Andrey Gubichev. Some Thoughts on OWL-Empowered SPARQL Query Optimization. In Poster Proceedings of the 13th Extended Semantic Web Conference (ESWC-16), 2016.
[download (pdf)]

[19]             Argyro Avgoustaki, Giorgos Flouris, Irini Fundulaki, Dimitris Plexousakis. Provenance Management for Evolving RDF Datasets. In Proceedings of the 13th Extended Semantic Web Conference (ESWC-16), 2016.
Also appeared in Proceedings of the 14th Hellenic Data Management Symposium (HDMS-16), 2016.
[download (pdf)]

[20]             Theodore Patkos, Antonis Bikakis, Giorgos Flouris. A Multi-Aspect Evaluation Framework for Comments on the Social Web. In Proceedings of the 15th International Conference on Principles of Knowledge Representation and Reasoning (KR-16), Short Paper, 2016.
[download (pdf)]

[21]             Georgia Troullinou, Yannis Roussakis, Haridimos Kondylakis, Kostas Stefanidis, Giorgos Flouris. Understanding Ontology Evolution Beyond Deltas. In Proceedings of the 2nd International Workshop on Preservation of Evolving Big Data (DIACHRON-16), also available as CEUR-WS, Vol. 1518, 2016.
[download (pdf)]

[22]             Haridimos Kondylakis, Giorgos Flouris, Irini Fundulaki, Vassilis Papakonstantinou, Manolis Tsiknakis. Flexible Access to Patient Data through e-Consent. In Proceedings of the 5th EAI International Conference on Wireless Mobile Communication and Healthcare, “Transforming healthcare through innovations in mobile and wireless technologies” (MOBIHEALTH-15), 2015.
[download (pdf)]

[23]             Yannis Roussakis, Ioannis Chrysakis, Kostas Stefanidis, Giorgos Flouris, Yannis Stavrakas. A Flexible Framework for Understanding the Dynamics of Evolving RDF Datasets. In Proceedings of the 14th International Semantic Web Conference (ISWC-15), 2015. Best Student Paper Award.
Also appeared in Proceedings of the 14th Hellenic Data Management Symposium (HDMS-16), 2016.
[download (pdf)]

[24]             Tzanina Saveta, Eva Daskalaki, Giorgos Flouris, Irini Fundulaki, Melanie Herschel, Axel-Cyrille Ngonga-Ngomo. LANCE: Piercing to the Heart of Instance Matching Tools. In Proceedings of the 14th International Semantic Web Conference (ISWC-15), 2015.
[download (pdf)]

[25]             Yannis Roussakis, Ioannis Chrysakis, Kostas Stefanidis, Giorgos Flouris. D2V: A Tool for Defining, Detecting and Visualizing Changes on the Data Web. In Proceedings of the 14th International Semantic Web Conference, Posters and Demonstrations Track (ISWC-15), 2015.
[download paper (pdf)], [download poster (pdf)]

[26]             Tzanina Saveta, Eva Daskalaki, Giorgos Flouris, Irini Fundulaki, Axel-Cyrille Ngonga-Ngomo. LANCE: A Generic Benchmark Generator for Linked Data. In Proceedings of the 14th International Semantic Web Conference, Posters and Demonstrations Track (ISWC-15), 2015.
[download paper (pdf)], [download poster (pdf)]

[27]             Theodore Patkos, Giorgos Flouris, Panagiotis Papadakos, Antonis Bikakis, Pompeu Casanovas, Jorge Gonzalez-Conejero, Rebeca Varela Figueroa, Anthony Hunter, Gudjon Idir, George Ioannidis, Marta Kacprzyk-Murawska, Andrzej Nowak, Jeremy Pitt, Dimitris Plexousakis, Agnieszka Rychwalska, Alexandru Stan. Privacy-by-Norms Privacy Expectations in Online Interactions. In Proceedings of the 3rd International Workshop on Self-Adaptive and Self-Organising Socio-Technical Systems (SASO-ST-15), 2015.
[download (pdf)]

[28]             Nikos Minadakis, Yannis Marketakis, Haridimos Kondylakis, Giorgos Flouris, Maria Theodoridou, Martin Doerr, and Gerald de Jong. X3ML Framework: An effective suite for supporting data mappings. In Proceedings of the workshop on Extending, Mapping and Focusing the CRM (EMF-CRM-15), 2015.
[download (pdf)]

[29]             Theodora Galani, Yannis Stavrakas, George Papastefanatos, Giorgos Flouris. Supporting Complex Changes in RDF(S) Knowledge Bases. In Proceedings of the 1st DIACHRON Workshop: Managing the Evolution and Preservation of the Data Web (MEPDaW-15), published in CEUR vol-1377, 2015.
[download (pdf)]

[30]             Michalis Chortis, Giorgos Flouris. A Diagnosis and Repair Framework for DL-LiteA KBs. In Proceedings of the 1st DIACHRON Workshop: Managing the Evolution and Preservation of the Data Web (MEPDaW-15), published in CEUR vol-1377, 2015.
A slightly revised version appeared in the Post Proceedings of the ESWC-15 Workshops (selected papers), 2015.
[download the MEPDaW-15 version (pdf)], [download the ESWC-15 workshops post proceedings version (pdf)]

[31]             Tzanina Saveta, Eva Daskalaki, Giorgos Flouris, Irini Fundulaki, Melanie Herschel, Axel-Cyrille Ngonga-Ngomo. Pushing the Limits of Instance Matching Systems. A Semantics-Aware Benchmark for Linked Data. In Proceedings of the Poster Session of the 24th International World Wide Web Conference (WWW-15), 2015.
[download (pdf)]

[32]             Dimitra Zografistou, Giorgos Flouris, Theodore Patkos, Dimitris Plexousakis, Martin Balaz, Martin Homola, Alexander Simko. A Dialogical Model for Collaborative Decision Making based on Compromises. In Proceedings of the 12th European Conference on Multi-Agent Systems (EUMAS-14), Short paper, 2014.
[download (pdf)]

[33]             Martin Balaz, Josef Frtus, Giorgos Flouris, Martin Homola, Jan Sefranek. Conflict Resolution in Assumption-Based Frameworks. In Proceedings of the 12th European Conference on Multi-Agent Systems (EUMAS-14), Short paper, 2014.
[download (pdf)]

[34]             Kostas Stefanidis, Ioannis Chrysakis, Giorgos Flouris. On Designing Archiving Policies for Evolving RDF Datasets on the Web. In Proceedings of the 33rd International Conference on Conceptual Modelling (ER-14), 2014.
[download (pdf)]

[35]             Martin Balaz, Josef Frtus, Martin Homola, Jan Sefranek, Giorgos Flouris. Embedding Defeasible Logic Programs into Generalized Logic Programs. In Proceedings of the 28th Workshop on (Constraint) Logic Programming (WLP-14), 2014.
[download (pdf)]

[36]             Filippos Gouidis, Giorgos Flouris, Dimitris Plexousakis. A Demo for Smart City Operation Center. In Proceedings of the 8th International Rule Challenge, part of the 8th International Web Rule Symposium (RuleML-14), demo paper, 2014.
[download (pdf)]

[37]             Vassilis Papakonstantinou, Giorgos Flouris, Irini Fundulaki and Haridimos Kondylakis. Securing Access to Sensitive RDF Data. In Proceedings of the 11th Extended Semantic Web Conference (Poster and Demo Track), 2014.
[download paper (pdf)], [download poster (pdf)]

[38]             Filippos Gouidis, Theodore Patkos, Giorgos Flouris, Dimitris Plexousakis. Declarative Reasoning Approaches for Agent Coordination. In Proceedings of the 8th Hellenic Conference on Artificial Intelligence, 2014.
[download (pdf)]

[39]             Soren Auer, Theodore Dalamagas, Helen Parkinson, Francois Bancilhon, Giorgos Flouris, Dimitris Sacharidis, Peter Buneman, Dimitris Kotzinos, Yannis Stavrakas, Vassilis Christophides, George Papastefanatos, Kostas Thiveos. Diachronic Linked Data: Towards Long-term Preservation of Structured Interrelated Information. In post-proceedings of the 1st International Workshop on Open Data (WOD-12), 2012.
[download (pdf)]

[40]             Giorgos Flouris, Yannis Roussakis, Maria Poveda-Villalon, Pablo N. Mendes, Irini Fundulaki. Using Provenance for Quality Assessment and Repair in Linked Open Data. In Proceedings of the 2nd Joint Workshop on Knowledge Evolution and Ontology Dynamics (EvoDyn-12), 2012.
[download (pdf)]

[41]             Ilias Tachmazidis, Grigoris Antoniou, Giorgos Flouris, Spyros Kotoulas. Scalable Nonmonotonic Reasoning over RDF Data Using MapReduce. In Proceedings of the Joint Workshop on Scalable and High-Performance Semantic Web Systems (SSWS+HPCSW-12), 2012.
[download (pdf)]

[42]             Ilias Tachmazidis, Grigoris Antoniou, Giorgos Flouris, Spyros Kotoulas, Lee McCluskey. Large-scale Parallel Stratified Defeasible Reasoning. In Proceedings of the 20th European Conference on Artificial Intelligence (ECAI-12), 2012.
[download (pdf)]

[43]             Vassilis Papakonstantinou, Maria Michou, Irini Fundulaki, Giorgos Flouris, Grigoris Antoniou. Access Control for RDF Graphs Using Abstract Models. In Proceedings of the 17th ACM Symposium on Access Control Models and Technologies (SACMAT-12), 2012.
[download (pdf)]

[44]             Ilias Tachmazidis, Grigoris Antoniou, Giorgos Flouris, Spyros Kotoulas. Towards Parallel Nonmonotonic Reasoning with Billions of Facts. In Proceedings of the 13th International Conference on Principles of Knowledge Representation and Reasoning (KR-12), Short Paper and Poster, 2012.
[download paper (pdf)], [download poster (pdf)]

[45]             Christos Strubulis, Yannis Tzitzikas, Martin Doerr, Giorgos Flouris. Evolution of Workflow Provenance Information in the Presence of Custom Inference Rules. In Proceedings of the 3rd International Workshop on the Role of Semantic Web in Provenance Management (SWPM-12), 2012.
[download (pdf)]

[46]             Max Ostrowski, Giorgos Flouris, Torsten Schaub, Grigoris Antoniou. Evolution of Ontologies using ASP. In Proceedings of the 27th International Conference on Logic Programming (ICLP-11), Technical Communications, 2011.
[download (pdf)]

[47]             Yannis Roussakis, Giorgos Flouris, Vassilis Christophides. Declarative Repairing Policies for Curated KBs. In Proceedings of the 10th Hellenic Data Management Symposium (HDMS-11), 2011.
[download (pdf)]

[48]             Giorgos Flouris, Irini Fundulaki, Maria Michou, Grigoris Antoniou. Controlling Access to RDF Graphs. In Proceedings of the 3rd Future Internet Symposium (FIS-10), 2010.
[download (pdf)]

[49]             Giorgos Flouris, Irini Fundulaki, Maria Michou, Grigoris Antoniou. Access Control for RDF: Experimental Results. In the Poster Session of the 3rd Future Internet Symposium (FIS-10), 2010.
[download (pdf)]

[50]             Haridimos Kondylakis, Giorgos Flouris, Dimitris Plexousakis. Ontology and Schema Evolution in Data Integration: Review and Assessment. In Proceedings of the 8th International Conference on Ontologies, DataBases, and Applications of Semantics (ODBASE-09), 2009.
[download (pdf)]

[51]             Marcio M. Ribeiro, Renata Wassermann, Grigoris Antoniou, Giorgos Flouris, Jeff Pan. Belief Contraction in Web-Ontology Languages. In Proceedings of the 3rd International Workshop on Ontology Dynamics (IWOD-09), Short Paper, 2009.
[download (pdf)]

[52]             Giorgos Flouris, Irini Fundulaki, Panagiotis Pediaditis, Yannis Theoharis, Vassilis Christophides. Colouring RDF Triples to Capture Provenance. In Proceedings of the 8th International Semantic Web Conference (ISWC-09), 2009.
[download (pdf)]

[53]             Vicky Papavassiliou, Giorgos Flouris, Irini Fundulaki, Dimitris Kotzinos, Vassilis Christophides. On Detecting High-Level Changes in RDF/S KBs. In Proceedings of the 8th International Semantic Web Conference (ISWC-09), 2009. Best Student Paper Award.
[download (pdf)]

[54]             Giorgos Flouris, Irini Fundulaki, Panagiotis Pediaditis, Yannis Theoharis, Vassilis Christophides. Capturing Provenance of RDF Triples through Colours. In Proceedings of the 8th Hellenic Data Management Symposium (HDMS-09), 2009.
[download (pdf)]

[55]             Panagiotis Pediaditis, Giorgos Flouris, Irini Fundulaki, Vassilis Christophides. On Explicit Provenance Management in RDF/S Graphs. In Proceedings of the 1st Workshop on the Theory and Practice of Provenance (TAPP-09), Short Paper, 2009.
[download (pdf)]

[56]             George Konstantinidis, Giorgos Flouris, Grigoris Antoniou, Vassilis Christophides. A Formal Approach for RDF/S Ontology Evolution. In Proceedings of the 18th European Conference on Artificial Intelligence (ECAI-08), pages 405-409, 2008.
[download (pdf)]

[57]             George Konstantinidis, Giorgos Flouris, Grigoris Antoniou, Vassilis Christophides. On RDF/S Ontology Evolution. In the post-proceedings of the Joint SWDB-ODBIS Workshop on Semantic Web, Ontologies, Databases, pages 21-42, 2008.
[download (pdf)]

[58]             George Konstantinidis, Giorgos Flouris, Grigoris Antoniou, Vassilis Christophides. Ontology Evolution: A Framework and its Application to RDF. In Proceedings of the Joint SWDB-ODBIS Workshop on Semantic Web, Ontologies, Databases (SWDB-ODBIS-07), 2007.
[download (pdf)]

[59]             Giorgos Flouris, Carlo Meghini. Terminology and Wish List for a Formal Theory of Preservation. In Proceedings of PV-2007: Ensuring the Long-Term Preservation and Value Adding to Scientific and Technical Data (PV-07), 2007.
[download paper (pdf)], [download extended abstract (pdf)]

[60]             Yannis Tzitzikas, Giorgos Flouris. Mind the (Intelligibility) Gap. In Proceedings of the 11th European Conference on Research and Advanced Technology for Digital Libraries (ECDL-07), pages 87-99, 2007.
[download (pdf)]

[61]             Giorgos Flouris, Carlo Meghini. Some Preliminary Ideas Towards a Theory of Digital Preservation. In Proceedings of the 1st International Workshop on Digital Libraries Foundations (DLF-07), 2007.
[download (pdf)]

[62]             Giorgos Flouris. On the Evolution of Ontological Signatures. In Proceedings of the Workshop on Ontology Evolution (OnE-07), 2007.
[download (pdf)]

[63]             Giorgos Flouris, Zhisheng Huang, Jeff Z. Pan, Dimitris Plexousakis, Holger Wache. Inconsistencies, Negations and Changes in Ontologies (Extended Abstract). In Proceedings of the 19th Belgian-Dutch Conference on Artificial Intelligence (BNAIC-07), 2007.
[download (pdf)]

[64]             Giorgos Flouris, Dimitris Plexousakis, Grigoris Antoniou. A Classification of Ontology Change. In the Poster Session of the 3rd Italian Semantic Web Workshop, Semantic Web Applications and Perspectives (SWAP-06), 2006.
[download (pdf)]

[65]             Yannis Tzitzikas, Vassilis Christophides, Giorgos Flouris, Dimitris Kotzinos, Hannu Markkanen, Dimitris Plexousakis, Nicolas Spyratos. Emergent Knowledge Artefacts for Supporting Trialogical E-Learning. In Proceedings of the 1st International Workshop on Building Technology Enhanced Learning solutions for Communities of Practice (TELCoPs-06), 2006.
[download (pdf)]

[66]             Yannis Tzitzikas, Vassilis Christophides, Giorgos Flouris, Dimitris Kotzinos, Hannu Markkanen, Dimitris Plexousakis, Nicolas Spyratos. Trialogical E-Learning and Emergent Knowledge Artefacts. In the Poster Session of the 1st European Conference on Technology Enhanced Learning (ECTEL-06), 2006.
[download (pdf)]

[67]             Giorgos Flouris, Dimitris Plexousakis, Grigoris Antoniou. On Generalizing the AGM Postulates. In Proceedings of the 3rd European Starting AI Researcher Symposium (STAIRS-06), pages 132-143, 2006. Best Paper Award.
[download (pdf)]

[68]             Giorgos Flouris, Zhisheng Huang, Jeff Z. Pan, Dimitris Plexousakis, Holger Wache. Inconsistencies, Negations and Changes in Ontologies. In Proceedings of the 21st National Conference on Artificial Intelligence (AAAI-06), pages 1295-1300, 2006.
[download (pdf)]

[69]             Giorgos Flouris, Dimitris Plexousakis. Bridging Ontology Evolution and Belief Change. Short Paper. In Proceedings of the 4th Hellenic Conference on Artificial Intelligence (SETN-06), pages 486-489, 2006.
[download (pdf)]

[70]             Giorgos Flouris, Dimitris Plexousakis, Grigoris Antoniou. On Applying the AGM Theory to DLs and OWL. In Proceedings of the 4th International Semantic Web Conference (ISWC-05), pages 216-231, 2005.
[download (pdf)]

[71]             Giorgos Flouris, Dimitris Plexousakis, Grigoris Antoniou. Ontology Evolution Using Belief Change and the AGM Theory. In the Poster Session of the 4th International Semantic Web Conference (ISWC-05), A0-sized poster, 2005.
[download (pdf)]

[72]             Giorgos Flouris. Applying Belief Change to Ontology Evolution. In Proceedings of the 1st International Semantic Web Doctoral Symposium (ISWDS-05), Research Thesis Summary, pages 9-12, 2005.
[download (pdf)]

[73]             Giorgos Flouris, Dimitris Plexousakis, Grigoris Antoniou. Updating Description Logics Using the AGM Theory. In Proceedings of the 7th International Symposium on Logical Formalizations of Commonsense Reasoning (Commonsense-05), pages 69-76, 2005.
[download (pdf)]

[74]             Giorgos Flouris, Dimitris Plexousakis, Grigoris Antoniou. Updating DLs Using the AGM Theory: A Preliminary Study. In Proceedings of the Poster Session of the 2005 Description Logic Workshop (DL-05), 2005.
[download (pdf)]

[75]             Giorgos Flouris, Dimitris Plexousakis, Grigoris Antoniou. Generalizing the AGM Postulates: Preliminary Results and Applications. In Proceedings of the 10th International Workshop on Non-Monotonic Reasoning (NMR-04), pages 171-179, 2004.
[download (pdf)]

[76]             Giorgos Flouris. Belief Change in Arbitrary Logics. In Proceedings of the 3rd Hellenic Data Management Symposium (HDMS-04), PhD Presentations Session, pages 217-219, 2004.
[download (pdf)]

[77]             Giorgos Flouris, Dimitris Plexousakis, Grigoris Antoniou. On a Unifying Framework for Comparing Knowledge Representation Schemes. In Proceedings of the 10th International Workshop on Knowledge Representation meets Databases (KRDB-03), 2003.
[download (pdf)]

[78]             Giorgos Flouris, Dimitris Plexousakis. On the Use of Matrices for Belief Revision. In post-proceedings of the 8th Panhellenic Conference in Informatics (selected papers), pages 100-117, 2003.
[download (pdf)]

[79]             Giorgos Flouris, Dimitris Plexousakis. Belief Revision in Propositional Knowledge Bases. In Proceedings of the 8th Panhellenic Conference on Informatics (PCI-01), pages 412-421, 2001.
[download (pdf)]

Book Chapters

[1]                Irini Fundulaki, Giorgos Flouris, Vassilis Papakonstantinou. On the Use of Abstract Models for RDF/S Provenance. In Andreas Harth, Katja Hose, Ralf Schenkel (editors), Linked Data Management: Principles and Techniques. Chapter 8.2, CRC Press, 2014.
[download chapter (pdf)]

[2]                Christoph Richter, Heidrun Allert, Vassiliy P. Tchoumatchenko, Ivan H. Furnadziev, Tania K. Vasileva, Dimitris Kotzinos, Giorgos Flouris, Vassilis Christophides, Juha Loytolainen. A Pragmatic Approach to Collaborative Semantic Modelling: The Visual Modelling (Language) Editor. In Anne Moen, Anders I. Morch, Sami Paavola (editors), Collaborative Knowledge Creation: Practices, Tools, Concepts. Sense Publishers. Chapter 5, pages 75-92, 2012.
[download chapter (pdf)]

[3]                Dimitris Kotzinos, Giorgos Flouris, Yannis Tzitzikas, Dimitris Andreou, Vassilis Christophides. Supporting Evolution of Knowledge Artefacts in Web Based Learning Environments. In Nikos Karacapilidis (editor), Solutions and Innovations in Web-Based Technologies for Augmented Learning: Improved Platforms, Tools, and Applications. Chapter IX, pages 142-167, 2009.
[download chapter (pdf)]

Edited Books, Journal Issues and Proceedings

[1]                Giorgos Flouris, Guilin Qi (editors). Proceedings of the 4th International Workshop on Ontology Dynamics (IWOD-10). 2010.
[CEUR, vol.651]

[2]                Giorgos Flouris, Mathieu d’ Aquin, Grigoris Antoniou, Jeff Pan, Dimitris Plexousakis (editors). Recent Advances in Ontology Dynamics. Journal of Logic and Computation (JLC), Special Issue, 19(5), 2009.
[download from Oxford Journals]

[3]                Dimitris Plexousakis, Jeff Pan, Giorgos Flouris, Mathieu d’ Aquin, Grigoris Antoniou (editors). Proceedings of the 2nd International Workshop on Ontology Dynamics (IWOD-08). 2008.
[download (pdf)]

[4]                Giorgos Flouris, Mathieu d’ Aquin (editors). Proceedings of the International Workshop on Ontology Dynamics (IWOD-07). 2007.
[download (pdf)]

Invited Talks and Publications (non-peer-reviewed)

[1]                Argyro Avgoustaki, Giorgos Flouris, Irini Fundulaki, Dimitris Plexousakis. Querying Data Provenance in the Internet of Things. Invited poster for FORTH’s Research Summit, 2019
[download abstract (pdf)] [download poster (pdf)]

[2]                Giorgos Flouris. Reasoning Technologies for Theoretical and Applied AI. Invited presentation for FORTH’s Research Summit, 2019.
[download abstract (pdf)] [download presentation (pdf)]

[3]                Ioannis Chrysakis, Giorgos Flouris, Theodore Patkos. The CAPrice Initiative and the CAP-A project: A socio-technical approach to digital privacy. Invited poster for the Researchers Night, 2019.
[download poster (pdf)]

[4]                Elisjana Ymeralli, Giorgos Flouris, Theodore Patkos, Yannis Roussakis, Dimitris Plexousakis. APOPSIS: A Web-based Platform for the Analysis of Structured Dialogues. Invited poster for the Researchers Night, 2018.
[download (pdf)]

[5]                Giorgos Flouris. A Collective Awareness Platform for Privacy Concerns and Expectations: CAPrice in the Making. Invited Talk for the Artificial Cosmoi and the Law Conference, 2nd edition, 2018
[download (ppsx)]

[6]                Antonis Bikakis, Giorgos Flouris, Theodore Patkos, and Dimitris Plexousakis: Sketching the Vision of Debate Web. Invited paper for the birthday volume for the 50th birthday of Leon van der Torre, “Leon50 - Arguing about Logic, Debates in Individual and Collective Reasoning”, 2018.
[download (pdf)]

[7]                Ioannis Chrysakis, Korina Doerr, Giorgos Flouris, Yannis Marketakis, Nikos Minadakis, Panagiotis Papadakos, Theodore Patkos, Chrysostomos Zeginis. CAPrice: A Collective Awareness Platform for Privacy Concerns and Expectations. Invited poster for TEDx University of Crete Event, 2018.
[download (pdf)]

[8]                Giorgos Flouris. Towards Ensuring Privacy in the Digital World: an Approach based on Collective Awareness. Invited talk, UCL seminar, 2017
[download (ppsx)]

[9]                Vassilis Papakonstantinou, Tzanina Saveta, Giorgos Flouris, Irini Fundulaki, Axel-Cyrille Ngonga-Ngomo. HOBBIT: Holistic Benchmarking of Big Linked Data. Invited poster for the Researchers Night, 2017.
[download (pdf)]

[10]             Argyro Avgoustaki, Giorgos Flouris, Irini Fundulaki, Dimitris Plexousakis. Discovering the History of Data. Invited poster for the Researchers Night, 2017. Also appeared as an invited poster for FORTH’s Research Summit, 2017.
[download (pdf)]

[11]             Panagiotis Papadakos, Irini Fundulaki, Giorgos Flouris, Evaggelia Pitoura, Panayiotis Tsaparas. BiasMeter: On Measuring Bias in Online Information. Invited poster for the Researchers Night, 2017. Also appeared as an invited poster for FORTH’s Research Summit, 2017.
[download (pdf)]

[12]             Theodore Patkos, Giorgos Flouris, Panagiotis Papadakos, Ioannis Chrysakis. CAPrice: A Collective Awareness Platform for Privacy Concerns and Expectations. Invited poster for the Researchers Night, 2017. A slightly revised version appeared as an invited poster for FORTH’s Research Summit, 2017.
[download Poster for Researchers Night (in Greek) (pdf)], [download Poster for Research Summit (in Greek) (pdf)]

[13]             Elisjana Ymeralli, Giorgos Flouris, Theodore Patkos, Yannis Roussakis, Dimitris Plexousakis. APOPSIS: A Web-based Platform for the Analysis of Structured Dialogues. Invited poster for the Researchers Night, 2017. Also appeared as an invited poster for FORTH’s Research Summit, 2017.
[download (pdf)]

[14]             Prodromos Lilitsis, Theodore Patkos, Giorgos Flouris, Dimitris Plexousakis. Travel Companion: A Mobile System for Trip Assistance Relying on Artificial Intelligence and Augmented Reality. Invited poster for FORTH’s Research Summit, 2017.
[download (pdf)]

[15]             Giorgos Flouris. Challenges in a Highly Interconnected Digital World: the Cases of Privacy and Digital Bias. Invited Talk for the Artificial Cosmoi and the Law Conference, 2017
[download (ppsx)]

[16]             Giorgos Flouris. CAPrice: A Crowd-sourcing Approach to Digital Privacy. Panelist for the Educational Panel of Cybersecurity: Risks and Responses Conference, 2017
[No contribution available]

[17]             Manel Achichi, Michelle Cheatham, Zlatan Dragisic, Jerome Euzenat, Daniel Faria, Alfio Ferrara, Giorgos Flouris, Irini Fundulaki, Ian Harrow, Valentina Ivanova, Ernesto Jimenez-Ruiz, Elena Kuss, Patrick Lambrix, Henrik Leopold, Huanyu Li, Christian Meilicke, Stefano Montanelli, Catia Pesquita, Tzanina Saveta, Pavel Shvaiko, Andrea Splendiani, Heiner Stuckenschmidt, Konstantin Todorov, Cassia Trojahn, Ondrej Zamazal. Results of the Ontology Alignment Evaluation Initiative 2016. In Proceedings of the 11th Workshop on Ontology Matching (OM-16), also appearing in CEUR Workshop Proceedings 1766, 2016.
[download (pdf)]

[18]             Tzanina Saveta, Eva Daskalaki, Giorgos Flouris, Irini Fundulaki, Axel-Cyrille Ngonga Ngomo. LANCE: A Generic Benchmark Generator for Linked Data. In Proceedings of the European Data Forum (EDF-16), 2016.
[download (pdf)]

[19]             Giorgos Flouris, Antonis Bikakis, Theodore Patkos, Dimitris Plexousakis. Argument Extraction Challenges in a New Web Paradigm. Invited paper for the Dagstuhl Seminar 16161: Natural Language Argumentation: Mining, Processing, and Reasoning over Textual Arguments, 2016.
[download (pdf)]

[20]             Giorgos Flouris. Preservation Through Evolution Management: The DIACHRON Approach. Invited talk for the Final Dissemination Workshop of DIACHRON project, 2016.
[download (pps)]

[21]             Michelle Cheatham, Zlatan Dragisic, Jerome Euzenat, Daniel Faria, Alfio Ferrara, Giorgos Flouris, Irini Fundulaki, Roger Granada, Valentina Ivanova, Ernesto Jimenez-Ruiz, Patrick Lambrix, Stefano Montanelli, Catia Pesquita, Tzanina Saveta, Pavel Shvaiko, Alessandro Solimando, Cassia Trojahn, Ondrej Zamazal. Results of the Ontology Alignment Evaluation Initiative 2015. In Proceedings of the 10th Workshop on Ontology Matching (OM-15), also appearing in CEUR Workshop Proceedings 1545, 2016.
[download (pdf)]

[22]             Tzanina Saveta, Eva Daskalaki, Giorgos Flouris, Irini Fundulaki, Melanie Herschel, Axel-Cyrille Ngonga Ngomo. SPIMBENCH: A Scalable, Schema-Aware Instance Matching Benchmark for the Semantic Publishing Domain. Invited poster for the 3rd Workshop on Graph-based Technologies and Applications (Graph-TA-15), 2015.
[download (pdf)]

[23]             Giorgos Flouris. Machine-Interpretable Online Debates for a New Web Paradigm. Invited Talk, TUWIEN-Comenius University workshop, November 2014.
[download (pps)]

[24]             Giorgos Flouris. Evolution Management for Preservation. Invited talk for the PRELIDA Consolidation and Dissemination workshop, 2014.
[download (ppsx)]

[25]             Tzanina Saveta, Eva Daskalaki, Giorgos Flouris, Irini Fundulaki, Melanie Herschel, Axel-Cyrille Ngonga-Ngomo, Dimitris Plexousakis. A Scalable Schema Aware Instance Matching Benchmark for Semantic Publishing. Invited poster for the 10th Reasoning Web Summer School, 2014.
[download (pdf)]

[26]             Dimitra Zografistou, Giorgos Flouris, Theodore Patkos, Dimitris Plexousakis. Group Decision Making Using Preferential Reasoning. Invited poster for the 10th Reasoning Web Summer School, 2014.
[download (pdf)]

[27]             Argyro Avgoustaki, Giorgos Flouris, Irini Fundulaki. Provenance Management for SPARQL Updates. Invited poster for the 10th Reasoning Web Summer School, 2014.
[download (pdf)]

[28]             Giorgos Flouris. Linked Open Data. Invited talk for the Workshop on the Provision and Use of Open Data, part of the Hack4MED of the HOMER project, 2014.
[download (ppsx)]

[29]             Giorgos Flouris, Vassilis Papakonstantinou, Irini Fundulaki. A Flexible and Powerful Access Control Model for Linked Open Data. Invited poster for the Research Summit of FORTH, 2013.
[download (pdf)]

[30]             Giorgos Flouris. Data and Knowledge Evolution. Tutorial in Open Data Tutorials, jointly organized with the 2nd International Workshop on Open Data (WOD-13), 2013.
[download (pps)]

[31]             Giorgos Flouris, Irini Fundulaki, Vassilis Papakonstantinou. Abstract Access Control Model for Dynamic RDF Datasets. In Proceedings of the European Data Forum (EDF-12), 2012.
[download (pdf)], [download (pps)]

[32]             Giorgos Flouris. High-Level Change Detection in the Semantic Web. Invited talk for the 10th anniversary of the W3C Greece Office, 2009.
[download (pps)]

[33]             Giorgos Flouris, George Konstantinidis. Formalizing the Evolution Process. In BOEMIE 2008 Workshop on Ontology Evolution and Multimedia Information Extraction (BOEMIE-08), Invited Talk, 2008.
[download paper (pdf)], [download presentation (pps)]

[34]             Giorgos Flouris, Carlo Meghini. Steps Towards a Theory of Information Preservation. In International Workshop on Database Preservation (PresDB-07), Invited Talk, 2007.
[download (pps)]

[35]             Giorgos Flouris, Dimitris Plexousakis, Grigoris Antoniou. Evolving Ontology Evolution. In Proceedings of the 32nd International Conference on Current Trends in Theory and Practice of Computer Science (SOFSEM-06), Invited Talk, pages 14-29, 2006.
[download (pdf)]

Technical Reports

[1]                Giorgos Flouris, Argyro Avgoustaki, Irini Fundulaki, Dimitris Plexousakis. ProvQL: Understanding the Provenance of your Data. In ERCIM News Magazine 117, 2019.
[download (pdf)]

[2]                Filippos Gouidis, Theodoros Patkos, Giorgos Flouris, Dimitris Plexousakis. The DRA* Algorithm. Technical Report FORTH-ICS/TR-468, July 2017.
[download (pdf)]

[3]                Kostas Stefanidis, Giorgos Flouris, Ioannis Chrysakis, Yannis Roussakis. D2V – Understanding the Dynamics of Evolving Data: A Case Study in the Life Sciences. In ERCIM News Magazine 105, 2016.
[download (pdf)]

[4]                Theodore Patkos, Antonis Bikakis, Giorgos Flouris. Rating Comments on the Social Web using a Multi-Aspect Evaluation Framework. Technical Report FORTH-ICS/TR-463, January 2016.
[download (pdf)]

[5]                Yannis Roussakis, Ioannis Chrysakis, Kostas Stefanidis, Giorgos Flouris, Yannis Stavrakas. A Flexible Framework for Understanding the Dynamics of Evolving RDF Datasets: Extended Version. Technical Report FORTH-ICS/TR-456, July 2015.
[download (pdf)]

[6]                Yannis Roussakis, Ioannis Chrysakis, Kostas Stefanidis, Giorgos Flouris, Yannis Stavrakas. A Flexible Framework for Defining, Representing and Detecting Changes on the Data Web. In arXiv:1501.02652, 2015.
[download (pdf)]

[7]                Martin Balaz, Josef Frtus, Martin Homola, Jan Sefranek, Giorgos Flouris. Embedding Defeasible Logic Programs into Generalized Logic Programs (Extended Version). Technical Reports in Informatics TR-2014-043. Comenius University of Bratislava. 2014.
[download (pdf)]

[8]                Martin Homola, Theodore Patkos, Giorgos Flouris, Josef Frtus, Alexander Simko, Jan Sefranek, Dimitra Zografistou, Martin Balaz. Resolving Conflicts in Knowledge for Ambient Intelligence. Technical Reports in Informatics TR-2014-041. Comenius University of Bratislava. 2014.
[download (pdf)]

[9]                Filippos Gouidis, Theodore Patkos, Giorgos Flouris. Smart City Operation Center: A Platform to Optimize Urban Service Rendering. In ERCIM News Magazine 98, Special Theme: Smart Cities, 2014.
[download (pdf)]

[10]             Giorgos Flouris, Antonis Bikakis, Theodore Patkos, Dimitris Plexousakis. Globally Interconnecting Persuasive Arguments: The Vision of the Persuasive Web. Technical Report FORTH-ICS/TR-438, November 2013.
[download (pdf)]

[11]             Max Ostrowski, Giorgos Flouris, Torsten Schaub, Grigoris Antoniou. Evolution of Ontologies using ASP. Technical Report FORTH-ICS/TR-415, May 2011.
[download (pdf)]

[12]             Giorgos Flouris, Irini Fundulaki, Maria Michou, Grigoris Antoniou. Controlling Access to RDF Graphs. Technical Report FORTH-ICS/TR-405, May 2010.
[download (pdf)]

[13]             Vicky Papavassiliou, Giorgos Flouris, Irini Fundulaki, Dimitris Kotzinos, Vassilis Christophides. Formalizing High-Level Change Detection for RDF/S KBs. Technical Report FORTH-ICS/TR-398, August 2009.
[download (pdf)]

[14]             Fabio Nanni, Giorgos Flouris. Issues Related to a Soft Transition of Existing Archives to a Preservation Environment. Technical Report FORTH-ICS/TR-395, October 2008.
[download (pdf)]

[15]             Giorgos Flouris, Dimitris Plexousakis. Handling Ontology Change: Survey and Proposal for a Future Research Direction. Technical Report FORTH-ICS/TR-362, September 2005.
[download (pdf)]

[16]             Giorgos Flouris, Dimitris Plexousakis, Grigoris Antoniou. AGM Postulates in Arbitrary Logics: Initial Results and Applications. Technical Report FORTH-ICS/TR-336, April 2004.
[download (pdf)]

[17]             Giorgos Flouris, Dimitris Plexousakis, Grigoris Antoniou. Describing Knowledge Representation Schemes: a Formal Account. Technical Report FORTH-ICS/TR-320, April 2003.
[download (pdf)]

[18]             Giorgos Flouris, Dimitris Plexousakis. Belief Revision Using Table Transformation. Technical Report FORTH-ICS/TR-290, July 2001.
[download (pdf)]

Theses

[1]                Giorgos Flouris. On Belief Change and Ontology Evolution. Doctoral Dissertation, Department of Computer Science, University of Crete, February 2006.
[download (pdf)]

[2]                Giorgos Flouris. Belief Revision in Knowledge Bases. Master of Science Thesis, Department of Computer Science, University of Crete; also available as Technical Report FORTH-ICS/TR-292, October 2001 (in Greek).
[download full Greek thesis (pdf)], [download English abstract (pdf)]

 

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Last updated: 25/02/2020