Vassilis Christophides

Giorgos Flouris, George Konstantinidis, Grigoris Antoniou, Vassilis Christophides: Formal foundations for RDF/S KB evolution. Knowl. Inf. Syst. 35(1): 153-191 (2013)

Vicky Papavasileiou, Giorgos Flouris, Irini Fundulaki, Dimitris Kotzinos, Vassilis Christophides: High-level change detection in RDF(S) KBs. ACM Trans. Database Syst. 38(1): 1 (2013)

Floris Geerts, Grigoris Karvounarakis, Vassilis Christophides, Irini Fundulaki: Algebraic structures for capturing the provenance of SPARQL queries. ICDT 2013: 153-164

Yannis Theoharis, George Georgakopoulos, Vassilis Christophides: PoweRGen: A power-law based generator of RDFS schemas. Inf. Syst. 37(4): 306-319 (2012)

Jordi Creus Tomàs, Bernd Amann, Vassilis Christophides, Nicolas Travers, Dan Vodislav: RoSeS, un moteur de requêtes continues pour la syndication RSS à large échelle. Ingénierie des Systèmes d'Information 17(5): 57-85 (2012)

Nelly Vouzoukidou, Bernd Amann, Vassilis Christophides: Processing continuous text queries featuring non-homogeneous scoring functions. CIKM 2012: 1065-1074

Zeinab Hmedeh, Harris Kourdounakis, Vassilis Christophides, Cédric du Mouza, Michel Scholl, Nicolas Travers: Subscription indexes for web syndication systems. EDBT 2012: 312-323

Petros Tsialiamanis, Lefteris Sidirourgos, Irini Fundulaki, Vassilis Christophides, Peter A. Boncz: Heuristics-based query optimisation for SPARQL. EDBT 2012: 324-335

Yannis Stavrakas, George Papastefanatos, Theodore Dalamagas, Vassilis Christophides: Diachronic Linked Data: Towards Long-Term Preservation of Structured Interrelated Information. CoRR abs/1205.2292 (2012)

Yannis Theoharis, Irini Fundulaki, Grigoris Karvounarakis, Vassilis Christophides: On Provenance of Queries on Semantic Web Data. IEEE Internet Computing 15(1): 31-39 (2011)

Dimitris Zeginis, Yannis Tzitzikas, Vassilis Christophides: On Computing Deltas of RDF/S Knowledge Bases. TWEB 5(3): 14 (2011)

Zeinab Hmedeh, Nelly Vouzoukidou, Nicolas Travers, Vassilis Christophides, Cédric du Mouza, Michel Scholl: Characterizing Web Syndication Behavior and Content. WISE 2011: 29-42

Yannis Tzitzikas, Vassilis Christophides: Knowledge Management for Digital Preservation. ERCIM News 2010(80) (2010)

Ioanna Koffina, Giorgos Serfiotis, Vassilis Christophides, Val Tannen: Mediating RDF/S Queries to Relational and XML Sources. Database Technologies: Concepts, Methodologies, Tools, and Applications 2009: 596-614

Panagiotis Pediaditis, Giorgos Flouris, Irini Fundulaki, Vassilis Christophides: On Explicit Provenance Management in RDF/S Graphs. Workshop on the Theory and Practice of Provenance 2009

Giorgos Flouris, Irini Fundulaki, Panagiotis Pediaditis, Yannis Theoharis, Vassilis Christophides: Coloring RDF Triples to Capture Provenance. International Semantic Web Conference 2009: 196-212

Vicky Papavassiliou, Giorgos Flouris, Irini Fundulaki, Dimitris Kotzinos, Vassilis Christophides: On Detecting High-Level Changes in RDF/S KBs. International Semantic Web Conference 2009: 473-488

Vassilis Christophides: Resource Description Framework (RDF) Schema (RDFS). Encyclopedia of Database Systems 2009: 2425-2428

Lefteris Sidirourgos, Giorgos Kokkinidis, Theodore Dalamagas, Vassilis Christophides, Timos K. Sellis: Indexing views to route queries in a PDMS. Distributed and Parallel Databases 23(1): 45-68 (2008)

Yannis Theoharis, Yannis Tzitzikas, Dimitris Kotzinos, Vassilis Christophides: On Graph Features of Semantic Web Schemas. IEEE Trans. Knowl. Data Eng. 20(5): 692-702 (2008)

George Konstantinidis, Giorgos Flouris, Grigoris Antoniou, Vassilis Christophides: A Formal Approach for RDF/S Ontology Evolution. ECAI 2008: 70-74

Periklis Georgiadis, Ioannis Kapantaidakis, Vassilis Christophides, Elhadji Mamadou Nguer, Nicolas Spyratos: Efficient Rewriting Algorithms for Preference Queries. ICDE 2008: 1101-1110

Vassilis Christophides, Martine Collard, Claudio Gutierrez (Eds.): Semantic Web, Ontologies and Databases, VLDB Workshop, SWDB-ODBIS 2007, Vienna, Austria, September 24, 2007, Revised Selected Papers. Lecture Notes in Computer Science 5005, Springer 2008, isbn 978-3-540-70959-6

Dimitris Kotzinos, Vassilis Christophides, Liisa Ilomäki: The KP-Lab Framework for Knowledge Creation Practices. ERCIM News 2007(71) (2007)

Yannis Tzitzikas, Vassilis Christophides, Giorgos Flouris, Dimitris Kotzinos, Hannu Markkanen, Dimitris Plexousakis, Nicolas Spyratos: Emergent Knowledge Artifacts for Supporting Trialogical E-Learning. IJWLTT 2(3): 19-41 (2007)

Vassilis Christophides, Peter Buneman: Report on the First International Workshop on Database Preservation (PresDB'07). SIGMOD Record 36(3): 55-58 (2007)

Stratis Viglas, Theodore Dalamagas, Vassilis Christophides, Timos K. Sellis, Aggeliki Dimitriou: Application of the Peer-to-Peer Paradigm in Digital Libraries. DELOS Conference 2007: 318-327

George Konstantinidis, Giorgos Flouris, Grigoris Antoniou, Vassilis Christophides: On RDF/S Ontology Evolution. SWDB-ODBIS 2007: 21-42

Yannis Theoharis, George Georgakopoulos, Vassilis Christophides: On the Synthetic Generation of Semantic Web Schemas. SWDB-ODBIS 2007: 98-116

Dimitris Zeginis, Yannis Tzitzikas, Vassilis Christophides: On the Foundations of Computing Deltas Between RDF Models. ISWC/ASWC 2007: 637-651

Periklis Georgiadis, Vassilis Christophides, Nicolas Spyratos: Designing personalized curricula based on student preferences. SIGDOC 2007: 55-62

Ioanna Koffina, Giorgos Serfiotis, Vassilis Christophides, Val Tannen: Mediating RDF/S Queries to Relational and XML Sources. Int. J. Semantic Web Inf. Syst. 2(4): 68-91 (2006)

Yannis Tzitzikas, Vassilis Christophides, Giorgos Flouris, Dimitris Kotzinos, Hannu Markkanen, Dimitris Plexousakis, Nicolas Spyratos: Trialogical E-Learning and Emergent Knowledge Artifacts. EC-TEL 2006: 703-708

Yannis Tzitzikas, Vassilis Christophides, Giorgos Flouris, Dimitris Kotzinos, Hannu Markkanen, Dimitris Plexousakis, Nicolas Spyratos: Emergent Knowledge Artifacts for Supporting Trialogical E-Learning. EC-TEL Workshops 2006

Ioanna Koffina, Giorgos Serfiotis, Vassilis Christophides, Val Tannen, Alin Deutsch: Integrating XML Data Sources using RDF/S Schemas: The ICS-FORTH Semantic Web Integration Middleware (SWIM). Semantic Interoperability and Integration 2005

Nicolas Spyratos, Vassilis Christophides: Querying with Preferences in a Digital Library. Federation over the Web 2005: 130-142

Matoula Magiridou, S. Sahtouris, Vassilis Christophides, Manolis Koubarakis: RUL: A Declarative Update Language for RDF. International Semantic Web Conference 2005: 506-521

Giorgos Serfiotis, Ioanna Koffina, Vassilis Christophides, Val Tannen: Containment and Minimization of RDF/S Query Patterns. International Semantic Web Conference 2005: 607-623

Yannis Theoharis, Vassilis Christophides, Gregory Karvounarakis: Benchmarking Database Representations of RDF/S Stores. International Semantic Web Conference 2005: 685-701

Dimitris Kotzinos, Sofia Pediaditaki, Apostolos Apostolidis, Nikolaos Athanasis, Vassilis Christophides: Online curriculum on the semantic Web: the CSD-UoC portal for peer-to-peer e-learning. WWW 2005: 307-314

Grigoris Antoniou, Vassilis Christophides, Dimitris Plexousakis: Semantic Web Fundamentals. Encyclopedia of Information Science and Technology (V) 2005: 2464-2468

Kevin Keenoy, Alexandra Poulovassilis, Vassilis Christophides, George Loizou, Giorgos Kokkinidis, George Samaras, Nicolas Spyratos: Report on the Workshop on Metadata Management in Grid and Peer-to-Peer Systems, London, December 16, 2003. SIGMOD Record 33(3): 96-100 (2004)

Vassilis Christophides, Gregory Karvounarakis, Dimitris Plexousakis, Michel Scholl, Sotirios Tourtounis: Optimizing taxonomic semantic web queries using labeling schemes. J. Web Sem. 1(2): 207-228 (2004)

Aimilia Magkanaraki, Val Tannen, Vassilis Christophides, Dimitris Plexousakis: Viewing the semantic web through RVL lenses. J. Web Sem. 1(4): 359-375 (2004)

Giorgos Kokkinidis, Vassilis Christophides: Semantic Query Routing and Processing in P2P Database Systems: The ICS-FORTH SQPeer Middleware. EDBT Workshops 2004: 486-495

Kevin Keenoy, Alexandra Poulovassilis, Vassilis Christophides, Philippe Rigaux, George Papamarkos, Aimilia Magkanaraki, Miltos Stratakis, Nicolas Spyratos, Peter T. Wood: Personalisation Services for Self E-learning Networks. ICWE 2004: 215-219

Nikolaos Athanasis, Vassilis Christophides, Dimitris Kotzinos: Generating On the Fly Queries for the Semantic Web: The ICS-FORTH Graphical RQL Interface (GRQL). International Semantic Web Conference 2004: 486-501

Elisa Bertino, Stavros Christodoulakis, Dimitris Plexousakis, Vassilis Christophides, Manolis Koubarakis, Klemens Böhm, Elena Ferrari (Eds.): Advances in Database Technology - EDBT 2004, 9th International Conference on Extending Database Technology, Heraklion, Crete, Greece, March 14-18, 2004, Proceedings. Lecture Notes in Computer Science 2992, Springer 2004, isbn 3-540-21200-0

Gregory Karvounarakis, Aimilia Magkanaraki, Sofia Alexaki, Vassilis Christophides, Dimitris Plexousakis, Michel Scholl, Karsten Tolle: Querying the Semantic Web with RQL. Computer Networks 42(5): 617-640 (2003)

Vassilis Christophides, Gregory Karvounarakis, Aimilia Magkanaraki, Dimitris Plexousakis, Val Tannen: The ICS-FORTH Semantic Web Integration Middleware (SWIM). IEEE Data Eng. Bull. 26(4): 11-18 (2003)

Catherine E. Houstis, Spyros Lalis, Vassilis Christophides, Dimitris Plexousakis, Manolis Vavalis, Marios Pitikakis, Kyriakos Kritikos, Antonis Smardas: A Data, Computation and Knowledge Grid the Case of the Arion System. ICEIS (1) 2003: 359-365

Kevin Keenoy, Vassilis Christophides: Personalisation in Self e-Learning Networks. MMGPS 2003

Richard Hull, Michael Benedikt, Vassilis Christophides, Jianwen Su: E-services: a look behind the curtain. PODS 2003: 1-14

Aimilia Magkanaraki, Val Tannen, Vassilis Christophides, Dimitris Plexousakis: Viewing the Semantic Web through RVL Lenses. International Semantic Web Conference 2003: 96-112

Vassilis Christophides, Gregory Karvounarakis, Ioanna Koffina, Giorgos Kokkinidis, Aimilia Magkanaraki, Dimitris Plexousakis, Giorgos Serfiotis, Val Tannen: The ICS-FORTH SWIM: A Powerful Semantic Web Integration Middleware. SWDB 2003: 381-393

Vassilis Christophides, Dimitris Plexousakis, Michel Scholl, Sotirios Tourtounis: On labeling schemes for the semantic web. WWW 2003: 544-555

Kevin Keenoy, Alexandra Poulovassilis, Vassilis Christophides (Eds.): MMGPS, IST Workshop on Metadata Management in Grid and P2P Systems: Models, Services and Architectures, London, December 16, 2003. CEUR Workshop Proceedings 95, CEUR-WS.org 2003

Vassilis Christophides, Juliana Freire (Eds.): International Workshop on Web and Databases, San Diego, California, June 12-13, 2003. 2003

Nicolas Spyratos, Yannis Tzitzikas, Vassilis Christophides: On Personalizing the Catalogs of Web Portals. FLAIRS Conference 2002: 430-434

Aimilia Magkanaraki, Sofia Alexaki, Vassilis Christophides, Dimitris Plexousakis: Benchmarking RDF Schemas for the Semantic Web. International Semantic Web Conference 2002: 132-146

Catherine E. Houstis, Spyros Lalis, Vassilis Christophides, Dimitris Plexousakis, Manolis Vavalis, Marios Pitikakis, Kyriakos Kritikos, Antonis Smardas, Charalampos Gikas: A Service Infrastructure for e-Science: The Case of the ARION System. WES 2002: 175-187

Gregory Karvounarakis, Sofia Alexaki, Vassilis Christophides, Dimitris Plexousakis, Michel Scholl: RQL: a declarative query language for RDF. WWW 2002: 592-603

Vassilis Christophides, Richard Hull, Akhil Kumar, Jérôme Siméon: Workflow Mediation using VorteXML. IEEE Data Eng. Bull. 24(1): 40-45 (2001)

Panos Constantopoulos, Vassilis Christophides, Dimitris Plexousakis: Conference review: Semantic Web Workshop: : models, architectures and management. Intelligence 12(2): 39-44 (2001)

Panos Constantopoulos, Vassilis Christophides, Dimitris Plexousakis: Semantic Web Workshop: Models, Architectures and Management. SIGMOD Record 30(3): 96-100 (2001)

Gregory Karvounarakis, Vassilis Christophides, Dimitris Plexousakis, Sofia Alexaki: Querying RDF Descriptions for Community Web Portals. BDA 2001

Vassilis Christophides, Richard Hull, Akhil Kumar: Querying and Splicing of XML Workflows. CoopIS 2001: 386-402

Sofia Alexaki, Vassilis Christophides, Gregory Karvounarakis, Dimitris Plexousakis, Karsten Tolle: The ICS-FORTH RDFSuite: Managing Voluminous RDF Description Bases. SemWeb 2001

Vassilis Christophides, Richard Hull, Gregory Karvounarakis, Akhil Kumar, Geliang Tong, Ming Xiong: Beyond Discrete E-Services: Composing Session-Oriented Services in Telecommunications. TES 2001: 58-73

Sofia Alexaki, Vassilis Christophides, Gregory Karvounarakis, Dimitris Plexousakis: On Storing Voluminous RDF Descriptions: The Case of Web Portal Catalogs. WebDB 2001: 43-48

Yannis Velegrakis, Vassilis Christophides, Panos Constantopoulos: On Z39.50 wrapping and description logics. Int. J. on Digital Libraries 3(3): 208-220 (2000)

Vassilis Christophides, Dimitris Plexousakis, Gregory Karvounarakis, Sofia Alexaki: Declarative Languages for Querying Portal Catalogs. DELOS Workshop: Information Seeking, Searching and Querying in Digital Libraries 2000

Sofia Alexaki, Vassilis Christophides, Gregory Karvounarakis, Dimitris Plexousakis, Karsten Tolle, Bernd Amann, Irini Fundulaki, Michel Scholl, Anne-Marie Vercoustre: Managing RDF Metadata for Community Webs. ER (Workshops) 2000: 140-151

Vassilis Christophides, Sophie Cluet, Jérôme Siméon: On Wrapping Query Languages and Efficient XML Integration. SIGMOD Conference 2000: 141-152

Yannis Velegrakis, Vassilis Christophides, Panos Constantopoulos: Declarative Specification of Z39.50 Wrappers Using Description Logics. ECDL 1999: 383-402

Vassilis Christophides, Catherine E. Houstis, Spyros Lalis, Hariklia Tsalapata: Onthology-Driven Integration of Scientific Repositories. NGITS 1999: 190-202

Alain Michard, Vassilis Christophides, Michel Scholl, Mike Stapleton, Dale C. Sutcliffe, Anne-Marie Vercoustre: The Aquarelle Resource Discovery System. Computer Networks 30(13): 1185-1200 (1998)

Vassilis Christophides, Sophie Cluet, Guido Moerkotte, Jérôme Siméon: Optimizing Generalized Path Expressions Using Full Text Indexes. Networking and Information Systems 1(2-3): 177-194 (1998)

Serge Abiteboul, Sophie Cluet, Vassilis Christophides, Tova Milo, Guido Moerkotte, Jérôme Siméon: Querying Documents in Object Databases. Int. J. on Digital Libraries 1(1): 5-19 (1997)

Vassilis Christophides, Sophie Cluet, Guido Moerkotte, Jérôme Siméon: Optimizing Generalized Path Expressions Using Full Text Indexes. BDA 1997

Vassilis Christophides, Martin Doerr, Irini Fundulaki: A Semantic Network Approach to Semi-Structured Documents Repositories. ECDL 1997: 305-324

Vassilis Christophides, Sophie Cluet, Guido Moerkotte: Evaluating Queries with Generalized Path Expressions. SIGMOD Conference 1996: 413-422

Vassilis Christophides, Antoine Rizk: Querying Structured Documents with Hypertext Links using OODBMS. ECHT 1994: 186-197

Vassilis Christophides, Serge Abiteboul, Sophie Cluet, Michel Scholl: From Structured Documents to Novel Query Facilities. SIGMOD Conference 1994: 313-324

Bernd Amann, Vassilis Christophides, Michel Scholl: HyperPATH/O2: Integrating Hypermedia Systems with Object-Oriented Database Systems. BDA 1993: 277-295

Bernd Amann, Vassilis Christophides, Michel Scholl: HyperPATH/O2: Integrating Hypermedia Systems with Object-Oriented Database Systems. DEXA 1993: 709-720