Yannis Tzitzikas

Yannis Tzitzikas, Panagiotis Papadakos: Interactive Exploration of Multi-Dimensional and Hierarchical Information Spaces with Real-Time Preference Elicitation. Fundam. Inform. 122(4): 357-399 (2013)

Panagiotis Papadakos, Nikos Armenatzoglou, Stella Kopidaki, Yannis Tzitzikas: On exploiting static and dynamically mined metadata for exploratory web searching. Knowl. Inf. Syst. 30(3): 493-525 (2012)

Stamatis Zampetakis, Yannis Tzitzikas, Asterios Leonidis, Dimitris Kotzinos: Star-like auto-configurable layouts of variable radius for visualizing and exploring RDF/S ontologies. J. Vis. Lang. Comput. 23(3): 137-153 (2012)

Pavlos Fafalios, Ioannis Kitsos, Yannis Marketakis, Claudio Baldassarre, Michail Salampasis, Yannis Tzitzikas: Web Searching with Entity Mining at Query Time. IRFC 2012: 73-88

Christina Lantzaki, Yannis Tzitzikas, Dimitris Zeginis: Demonstrating Blank Node Matching and RDF/S Comparison Functions. International Semantic Web Conference (Posters & Demos) 2012

Yannis Tzitzikas, Christina Lantzaki, Dimitris Zeginis: Blank Node Matching and RDF/S Comparison Functions. International Semantic Web Conference (1) 2012: 591-607

Panagiotis Papadakos, Yannis Tzitzikas, Dafni Zafeiri: An Interactive Exploratory System with Real-Time Preference Elicitation. WISE 2012: 817-820

Pavlos Fafalios, Ioannis Kitsos, Yannis Tzitzikas: Scalable, flexible and generic instant overview search. WWW (Companion Volume) 2012: 333-336

Martin Doerr, Yannis Tzitzikas: Information Carriers and Identification of Information Objects: An Ontological Approach. CoRR abs/1201.0385 (2012)

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

Nikos Manolis, Yannis Tzitzikas: Interactive Exploration of Fuzzy RDF Knowledge Bases. ESWC (1) 2011: 1-16

Pavlos Fafalios, Yannis Tzitzikas: Exploiting Available Memory and Disk for Scalable Instant Overview Search. WISE 2011: 101-115

Michael Hickson, Yannis Kargakis, Yannis Tzitzikas: Similarity-based Browsing over Linked Open Data. CoRR abs/1106.4176 (2011)

Carlo Meghini, Yannis Tzitzikas, Veronica Coltella, Anastasia Analyti: Query processing in distributed, taxonomy-based information sources. CoRR abs/1109.2425 (2011)

Maria Theodoridou, Yannis Tzitzikas, Martin Doerr, Yannis Marketakis, Valantis Melessanakis: Modeling and querying provenance by extending CIDOC CRM. Distributed and Parallel Databases 27(2): 169-210 (2010)

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

Yannis Tzitzikas, Yannis Marketakis: Automating the Ingestion and Transformation of Embedded Metadata. ERCIM News 2010(80) (2010)

Stamatis Zampetakis, Yannis Tzitzikas, Asterios Leonidis, Dimitris Kotzinos: StarLion: Auto-configurable Layouts for Exploring Ontologies. ESWC (2) 2010: 446-450

Dimitrios Kastrinakis, Yannis Tzitzikas: Advancing Search Query Autocompletion Services with More and Better Suggestions. ICWE 2010: 35-49

Yannis Tzitzikas, Yannis Marketakis, Grigoris Antoniou: Task-Based Dependency Management for the Preservation of Digital Objects Using Rules. SETN 2010: 265-274

Yannis Tzitzikas: On Providing Intelligibility-Aware Preservation Services for Digital Objects. Data Science Journal 8: 139-151 (2009)

Yannis Marketakis, Yannis Tzitzikas: Dependency management for digital preservation using semantic web technologies. Int. J. on Digital Libraries 10(4): 159-177 (2009)

Anastasia Analyti, Yannis Tzitzikas, Nicolas Spyratos: Specifying Valid Compound Terms in Interrelated Faceted Taxonomies. ER 2009: 360-373

Panagiotis Papadakos, Stella Kopidaki, Nikos Armenatzoglou, Yannis Tzitzikas: Exploratory Web Searching with Dynamic Taxonomies and Results Clustering. ECDL 2009: 106-118

Yannis Marketakis, Makis Tzanakis, Yannis Tzitzikas: PreScan: towards automating the preservation of digital objects. MEDES 2009: 404-411

Stella Kopidaki, Panagiotis Papadakos, Yannis Tzitzikas: STC+ and NM-STC: Two Novel Online Results Clustering Methods for Web Searching. WISE 2009: 523-537

Panagiotis Papadakos, Yannis Theoharis, Yannis Marketakis, Nikos Armenatzoglou, Yannis Tzitzikas: Object-Relational Database Representations for Text Indexing. CoRR abs/0906.3112 (2009)

Carlo Meghini, Yannis Tzitzikas, Nicolas Spyratos: Abduction for Accessing Information Sources. Fundam. Inform. 83(4): 355-387 (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)

Yannis Tzitzikas, Nikos Armenatzoglou, Panagiotis Papadakos: FleXplorer: A Framework for Providing Faceted and Dynamic Taxonomy-Based Information Exploration. DEXA Workshops 2008: 392-396

Yannis Tzitzikas, Yannis Theoharis, Dimitris Andreou: On Storage Policies for Semantic Web Repositories That Support Versioning. ESWC 2008: 705-719

Ioannis Rousidis, George Tzagkarakis, Dimitris Plexousakis, Yannis Tzitzikas: On a Probabilistic Combination of Prediction Sources. ISMIS 2008: 535-544

Panagiotis Papadakos, Yannis Theoharis, Yannis Marketakis, Nikos Armenatzoglou, Yannis Tzitzikas: Mitos: Design and Evaluation of a DBMS-Based Web Search Engine. Panhellenic Conference on Informatics 2008: 49-53

Panagiotis Papadakos, Giorgos Vasiliadis, Yannis Theoharis, Nikos Armenatzoglou, Stella Kopidaki, Yannis Marketakis, Manos Daskalakis, Kostas Karamaroudis, Giorgos Linardakis, Giannis Makrydakis, Vangelis Papathanasiou, Lefteris Sardis, Petros Tsialiamanis, Georgia Troullinou, Kostas Vandikas, Dimitris Velegrakis, Yannis Tzitzikas: The Anatomy of Mitos Web Search Engine. CoRR abs/0803.2220 (2008)

Yannis Tzitzikas, Anastasia Analyti, Nicolas Spyratos, Panos Constantopoulos: An algebra for specifying valid compound terms in faceted taxonomies. Data Knowl. Eng. 62(1): 1-40 (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)

Yannis Tzitzikas, Dimitris Kotzinos, Yannis Theoharis: On Ranking RDF Schema Elements (and its Application in Visualization). J. UCS 13(12): 1854-1880 (2007)

Yannis Tzitzikas: Evolution of faceted taxonomies and CTCA expressions. Knowl. Inf. Syst. 13(3): 337-365 (2007)

Yannis Tzitzikas, Dimitris Kotzinos: (Semantic web) evolution through change logs: Problems and solutions. Artificial Intelligence and Applications 2007: 654-659

Yannis Tzitzikas: Dependency Management for the Preservation of Digital Information. DEXA 2007: 582-592

Yannis Tzitzikas, Anastasia Analyti: Faceted Taxonomy-based Information Management. DEXA Workshops 2007: 207-211

Yannis Tzitzikas, Yannis Theoharis: Naming Functions for the Vector Space Model. ECIR 2007: 613-620

Yannis Tzitzikas, Giorgos Flouris: Mind the (Intelligibility) Gap. ECDL 2007: 87-99

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

Carlo Meghini, Yannis Tzitzikas, Anastasia Analyti: Query Evaluation in P2P Systems of Taxonomy-based Sources: Algorithms, Complexity, and Optimizations. CoRR abs/0709.3034 (2007)

Yannis Tzitzikas: An algebraic method for compressing symbolic data tables. Intell. Data Anal. 10(4): 343-359 (2006)

Yannis Tzitzikas, Carlo Meghini, Nicolas Spyratos: A unified interaction scheme for information sources. J. Intell. Inf. Syst. 26(1): 75-93 (2006)

Yannis Tzitzikas, Anastasia Analyti: Mining the meaningful term conjunctions from materialised faceted taxonomies: algorithms and complexity. Knowl. Inf. Syst. 9(4): 430-467 (2006)

Yannis Tzitzikas, Jean-Luc Hainaut: On the visualization of large-sized ontologies. AVI 2006: 99-102

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

Carlo Meghini, Yannis Tzitzikas, Nicolas Spyratos: Abduction for Extending Incomplete Information Sources. SETN 2006: 267-278

Yannis Tzitzikas: Revising Faceted Taxonomies and CTCA Expressions. SETN 2006: 600-604

Yannis Tzitzikas, Anastasia Analyti, Nicolas Spyratos: Compound Term Composition Algebra: The Semantics. J. Data Semantics 2: 58-84 (2005)

Yannis Tzitzikas, Nicolas Spyratos, Panos Constantopoulos: Mediators over taxonomy-based information sources. VLDB J. 14(1): 112-136 (2005)

Yannis Tzitzikas, Jean-Luc Hainaut: How to Tame a Very Large ER Diagram (Using Link Analysis and Force-Directed Drawing Algorithms). ER 2005: 144-159

Yannis Tzitzikas, Anastasia Analyti: Mining the Meaningful Compound Terms from Materialized Faceted Taxonomies. CoopIS/DOA/ODBASE (2) 2004: 873-890

Carlo Meghini, Yannis Tzitzikas: Querying Articulated Sources. CoopIS/DOA/ODBASE (2) 2004: 945-962

Yannis Tzitzikas, Raimo Launonen, Mika Hakkarainen, Pekka Korhonen, Tero Leppänen, Esko Simpanen, Hannu Törnroos, Pekka Uusitalo, Pentti Vänskä: FASTAXON: A System for FAST (and Faceted) TAXONomy Design. ER 2004: 841-843

Yannis Tzitzikas, Carlo Meghini, Nicolas Spyratos: Towards a Generalized Interaction Scheme for Information Access. FoIKS 2004: 291-301

Yannis Tzitzikas, Carlo Meghini, Nicolas Spyratos: A Unifying Framework for Flexible Information Access in Taxonomy-Based Sources. FQAS 2004: 161-174

Wolfgang Lindner, Marco Mesiti, Can Türker, Yannis Tzitzikas, Athena Vakali (Eds.): Current Trends in Database Technology - EDBT 2004 Workshops, EDBT 2004 Workshops PhD, DataX, PIM, P2P&DB, and ClustWeb, Heraklion, Crete, Greece, March 14-18, 2004, Revised Selected Papers. Lecture Notes in Computer Science 3268, Springer 2004, isbn 3-540-23305-9

Yannis Tzitzikas, Carlo Meghini: Ostensive Automatic Schema Mapping for Taxonomy-Based Peer-to-Peer Systems. CIA 2003: 78-92

Yannis Tzitzikas, Carlo Meghini: Query Evaluation in Peer-to-Peer Networks of Taxonomy-Based Sources. CoopIS/DOA/ODBASE 2003: 263-281

Yannis Tzitzikas, Anastasia Analyti, Nicolas Spyratos: The Semantics of the Compound Term Composition Algebra. CoopIS/DOA/ODBASE 2003: 970-985

Carlo Meghini, Yannis Tzitzikas: Query Evaluation over Networks of Logic-based Mediators (Position Paper). Description Logics 2003

Yannis Tzitzikas, Anastasia Analyti, Nicolas Spyratos, Panos Constantopoulos: An Algebraic Approach for Specifying Compound Terms in Faceted Taxonomies. EJC 2003: 67-87

Yannis Tzitzikas, Carlo Meghini, Nicolas Spyratos: Taxonomy-Based Conceptual Modeling for Peer-to-Peer Networks. ER 2003: 446-460

Carlo Meghini, Yannis Tzitzikas, Nicolas Spyratos: An Abduction-Based Method for Index Relaxation in Taxonomy-Based Sources. MFCS 2003: 592-601

Yannis Tzitzikas, Nicolas Spyratos, Panos Constantopoulos, Anastasia Analyti: Extended Faceted Ontologies. CAiSE 2002: 778-781

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

Yannis Tzitzikas, Nicolas Spyratos, Panos Constantopoulos: Query Translation for Mediators over Ontology-Based Information Sources. SETN 2002: 423-436

Yannis Tzitzikas, Nicolas Spyratos, Panos Constantopoulos, Anastasia Analyti: Extended Faceted Taxonomies for Web Catalogs. WISE 2002: 192-204

Yannis Tzitzikas: Democratic Data Fusion for Information Retrieval Mediators. AICCSA 2001: 531-537

Yannis Tzitzikas, Panos Constantopoulos, Nicolas Spyratos: Mediators over Ontology-Based Information Sources. WISE (1) 2001: 31-40

Panos Constantopoulos, Yannis Tzitzikas: Context-Driven Information Base Update. CAiSE 1996: 319-344