Yannis Tzitzikas

219 papers A* 2A 7B 17C 6Misc 5Journal 89Unranked 82

Year	Rank	Type	Title / Venue / Authors
2026	—	`conf`	Beyond Prompt-to-RDF: A Vision for Scalable and Explainable Graph Transformations via LLM-assisted Schema Mappings. EDBT/ICDT Workshops Yannis Marketakis, Yannis Tzitzikas
2026	B	`conf`	DEDALUS: A Quantum-Enhanced End-to-End Framework for Cost-Aware Join Order Optimization with Search Space Pruning. EDBT Emmanouil Limnaios, Markos Stergiopoulos, George T. Stamatiou, Efthymios Papageorgiou, Vasilis Efthymiou, Dimitrios Loupas, Dimitrios Tsourounis, Kostas Blekos, Aggelos Tsikas, Dimitris Plexousakis, Kostas Magoutis, Yannis Tzitzikas, Haridimos Kondylakis
2026	A*	`conf`	Img2KG: Ontology-Driven Correction of Visual Triples. WWW Christina Kanetou, Yannis Tzitzikas
2026	—	`ed.`	Knowledge Graphs - 14th International Joint Conference, IJCKG 2025, Heraklion, Crete, Greece, October 15-17, 2025, Proceedings IJCKG Hideaki Takeda, Yannis Tzitzikas, Giorgos Flouris, Shizhu He, Dimitris Plexousakis, Sébastien Ferré, Ran Yu, Vasilis Efthymiou, Eleni Ilkou, Ernesto Jiménez-Ruiz, Xin Wang
2025	J	`jnl`	A comparative evaluation for question answering over Greek texts by using machine translation and BERT. Lang. Resour. Evaluation Michalis Mountantonakis, Loukas Mertzanis, Michalis Bastakis, Yannis Tzitzikas
2025	J	`jnl`	AI-driven Extraction of Structured Data from a Large Newspaper Archive. ERCIM News Nikos Kontonasios, Yannis Tzitzikas, Pavlos Fafalios
2025	—	`conf`	Basketball Question Answering Using Knowledge Graphs and Large Language Models. IJCKG Michalis Mountantonakis, Dimitris Papadopoulos, Yannis Tzitzikas
2025	—	`conf`	Construction, Access, and Application of a Knowledge Base for Sustainable Aquafood Communication. IJCKG Yannis Marketakis, Yannis Tzitzikas, Alessandro Petrocelli, Sara Pittonet Gaiarin, Siân Astley, Christine Absil, Michelle Boonstra, Tim Huntington, Tracy Murai, Nicolas Baily
2025	J	`jnl`	Generating SPARQL Queries over CIDOC-CRM Using a Two-Stage Ontology Path Patterns Method in LLM Prompts. ACM Journal on Computing and Cultural Heritage Michalis Mountantonakis, Yannis Tzitzikas
2025	—	`conf`	Interactive Association Map Creation from Documents Using Association Rule Mining. TPDL (Short Papers and Workshops) Efthimios Mitkousis, Yannis Tzitzikas
2025	—	`conf`	Interactive and Provenance-Aware Search and QA over Documents Using LLMs, RAG and Knowledge Graph Verbalization. TPDL (Short Papers and Workshops) Iordanis Sapidis, Valantis Zervos, Michalis Mountantonakis, Yannis Tzitzikas
2025	—	`conf`	Knowledge Graphs and Quantum Computing: First Blood. IJCKG Yannis Tzitzikas, Haridimos Kondylakis
2025	—	`conf`	On Encoding Big Knowledge Graphs as Quantum States and on Running Grover's Algorithm. IJCKG Giorgos Theodorakis, Michalis Touloupakis, Yannis Tzitzikas
2025	J	`jnl`	TCRMQ: An Application for Generating CIDOC-CRM SPARQL Queries from Text by Using Large Language Models. ERCIM News Michalis Mountantonakis, Yannis Tzitzikas
2025	—	`conf`	TCRMQ: Question Answering by Multi-hop SPARQL Queries over Event-Based Knowledge Graphs. IJCKG Michalis Mountantonakis, Yannis Tzitzikas
2025	—	`conf`	To Automate or Not to Automate the Transcription of Ancient Earthquakes: Toward a Global Knowledge Graph About Ancient Earthquakes. IJCKG Sophia Sideri, Emmanouil Patronakis, Evangelos Nikiforos, Isidoros Chatzichrysos, Apostolos Baniotis, Valantis Zervos, Stavros Tzormpatzakis, Michalis Saridakis, Iosif Oikonomakis, Michalis Mountantonakis, Pavlos Fafalios, Yannis Tzitzikas
2024	J	`jnl`	A Pipeline for Validating ChatGPT Responses Using Knowledge Graphs and Embeddings. ERCIM News Michalis Mountantonakis, Yannis Tzitzikas
2024	J	`jnl`	How co-authorship affects the H-index? Scientometrics Yannis Tzitzikas, Giorgos Dovas
2024	—	`conf`	Modeling Modern and Historical Data as a Knowledge Graph: ACase Study for Earthquake Data. MTSR Iosif Oikonomakis, Pavlos Fafalios, Michalis Mountantonakis, Yannis Tzitzikas
2024	J	`jnl`	NLP for The Greek Language: A Longer Survey. CoRR Katerina Papantoniou, Yannis Tzitzikas
2024	J	`jnl`	Querying knowledge graphs through positive and negative examples and feedback. J. Intell. Inf. Syst. Akritas Akritidis, Yannis Tzitzikas
2024	J	`jnl`	Unifying Faceted Search and Analytics over RDF Knowledge Graphs. Knowl. Inf. Syst. Maria-Evangelia Papadaki, Yannis Tzitzikas
2023	J	`jnl`	A Workflow Model for Holistic Data Management and Semantic Interoperability in Quantitative Archival Research. CoRR Pavlos Fafalios, Yannis Marketakis, Anastasia Axaridou, Yannis Tzitzikas, Martin Doerr
2023	J	`jnl`	A workflow model for holistic data management and semantic interoperability in quantitative archival research. Digit. Scholarsh. Humanit. Pavlos Fafalios, Yannis Marketakis, Anastasia Axaridou, Yannis Tzitzikas, Martin Doerr
2023	J	`jnl`	ChatGPT Responses Validation through Knowledge Graphs. ERCIM News Michalis Mountantonakis, Yannis Tzitzikas
2023	B	`conf`	Demonstrating Interactive SPARQL Formulation through Positive and Negative Examples and Feedback. EDBT Akritas Akritidis, Yannis Tzitzikas
2023	—	`conf`	Evaluating a Radius-based Pipeline for Question Answering over Cultural (CIDOC-CRM based) Knowledge Graphs. HT Nikos Gounakis, Michalis Mountantonakis, Yannis Tzitzikas
2023	—	`conf`	FastCat Catalogues: Interactive Entity-Based Exploratory Analysis of Archival Documents. JCDL Georgios Rinakakis, Kostas Petrakis, Yannis Tzitzikas, Pavlos Fafalios
2023	J	`jnl`	FastCat Catalogues: Interactive Entity-based Exploratory Analysis of Archival Documents. CoRR Georgios Rinakakis, Kostas Petrakis, Yannis Tzitzikas, Pavlos Fafalios
2023	B	`conf`	RDF-Analytics: Interactive Analytics over RDF Knowledge Graphs. EDBT Maria-Evangelia Papadaki, Yannis Tzitzikas
2023	—	`conf`	Real-Time Validation of ChatGPT Facts using RDF Knowledge Graphs. ISWC (Posters/Demos/Industry) Michalis Mountantonakis, Yannis Tzitzikas
2023	J	`jnl`	SoundexGR: An algorithm for phonetic matching for the Greek language. Nat. Lang. Eng. Antrei Kavros, Yannis Tzitzikas
2023	—	`conf`	Using Multiple RDF Knowledge Graphs for Enriching ChatGPT Responses. ECML/PKDD (7) Michalis Mountantonakis, Yannis Tzitzikas
2023	J	`jnl`	Using Multiple RDF Knowledge Graphs for Enriching ChatGPT Responses. CoRR Michalis Mountantonakis, Yannis Tzitzikas
2023	J	`jnl`	Validating ChatGPT Facts through RDF Knowledge Graphs and Sentence Similarity. CoRR Michalis Mountantonakis, Yannis Tzitzikas
2023	—	`conf`	Why We Need Ontology-Specific Data Portals: A Case Study for CIDOC-CRM. SWODCH Michalis Mountantonakis, Ioannis Theocharakis, Yannis Tzitzikas
2022	—	`conf`	A Reconciliation Framework for the Integration of Stocks and Fisheries Information. HAICTA Yannis Marketakis, Yannis Tzitzikas, Aureliano Gentile, Bracken van Niekerk, Marc Taconet
2022	J	`jnl`	A spiral-like method to place in the space (and interact with) too many values. J. Intell. Inf. Syst. Yannis Tzitzikas, Maria-Evangelia Papadaki, Manos Chatzakis
2022	—	`conf`	Bilingual Question Answering over DBpedia Abstracts through Machine Translation and BERT. DL4KG@ISWC Michalis Mountantonakis, Michalis Bastakis, Loukas Mertzanis, Yannis Tzitzikas
2022	—	`conf`	Demonstration of LODChain: How to Tackle the Problem of Low Connectivity for your RDF Dataset. ISWC (Posters/Demos/Industry) Michalis Mountantonakis, Yannis Tzitzikas
2022	J	`jnl`	Estimating the Cost of Executing Link Traversal based SPARQL Queries. CoRR Antonis Sklavos, Pavlos Fafalios, Yannis Tzitzikas
2022	—	`conf`	FS2KG: From File Systems to Knowledge Graphs (Demo). ISWC (Posters/Demos/Industry) Yannis Tzitzikas
2022	Misc	`conf`	LODChain: Strengthen the Connectivity of Your RDF Dataset to the Rest LOD Cloud. ISWC Michalis Mountantonakis, Yannis Tzitzikas
2021	J	`jnl`	A workflow for supporting the evolution requirements of RDF-based semantic warehouses. Int. J. Metadata Semant. Ontologies Yannis Marketakis, Yannis Tzitzikas, Aureliano Gentile, Bracken van Niekerk, Marc Taconet
2021	J	`jnl`	Applying cross-data set identity reasoning for producing URI embeddings over hundreds of RDF data sets. Int. J. Metadata Semant. Ontologies Michalis Mountantonakis, Yannis Tzitzikas
2021	—	`conf`	Chattack: A Gamified Crowd-Sourcing Platform for Tagging Deceptive & Abusive Behaviour. ECIR (2) Emmanouil Smyrnakis, Katerina Papantoniou, Panagiotis Papadakos, Yannis Tzitzikas
2021	—	`conf`	ClaimLinker: Linking Text to a Knowledge Graph of Fact-checked Claims. WWW (Companion Volume) Evangelos Maliaroudakis, Katarina Boland, Stefan Dietze, Konstantin Todorov, Yannis Tzitzikas, Pavlos Fafalios
2021	J	`jnl`	FAST CAT: Collaborative Data Entry and Curation for Semantic Interoperability in Digital Humanities. CoRR Pavlos Fafalios, Kostas Petrakis, Georgios Samaritakis, Korina Doerr, Athina Kritsotaki, Yannis Tzitzikas, Martin Doerr
2021	J	`jnl`	FAST CAT: Collaborative Data Entry and Curation for Semantic Interoperability in Digital Humanities. ACM Journal on Computing and Cultural Heritage Pavlos Fafalios, Kostas Petrakis, Georgios Samaritakis, Korina Doerr, Athina Kritsotaki, Yannis Tzitzikas, Martin Doerr
2021	—	`conf`	How Your Cultural Dataset is Connected to the Rest Linked Open Data? TMM_CH Michalis Mountantonakis, Yannis Tzitzikas
2021	Misc	`conf`	Open Domain Question Answering over Knowledge Graphs Using Keyword Search, Answer Type Prediction, SPARQL and Pre-trained Neural Models. ISWC Christos Nikas, Pavlos Fafalios, Yannis Tzitzikas
2021	J	`jnl`	RDFsim: Similarity-Based Browsing over DBpedia Using Embeddings. Inf. Manos Chatzakis, Michalis Mountantonakis, Yannis Tzitzikas
2021	J	`jnl`	Towards Interactive Analytics over RDF Graphs. Algorithms Maria-Evangelia Papadaki, Nicolas Spyratos, Yannis Tzitzikas
2021	J	`jnl`	Towards Semantic Interoperability in Historical Research: Documenting Research Data and Knowledge with Synthesis. CoRR Pavlos Fafalios, Konstantina Konsolaki, Lida Charami, Kostas Petrakis, Manos Paterakis, Dimitris Angelakis, Yannis Tzitzikas, Chryssoula Bekiari, Martin Doerr
2021	Misc	`conf`	Towards Semantic Interoperability inHistorical Research: Documenting Research Data and Knowledge withSynthesis. ISWC Pavlos Fafalios, Konstantina Konsolaki, Lida Charami, Kostas Petrakis, Manos Paterakis, Dimitris Angelakis, Yannis Tzitzikas, Chrysoula Bekiari, Martin Doerr
2021	J	`jnl`	What process can a university follow for open data? The University of Crete case. Int. J. Metadata Semant. Ontologies Yannis Tzitzikas, Marios Pitikakis, Giorgos Giakoumis, Kalliopi Varouha, Eleni Karkanaki
2020	—	`conf`	$\mathtt{LODsyndesis}_{IE}$: Entity Extraction from Text and Enrichment Using Hundreds of Linked Datasets. ESWC (Satellite Events) Michalis Mountantonakis, Yannis Tzitzikas
2020	J	`jnl`	A survey on question answering systems over linked data and documents. J. Intell. Inf. Syst. Eleftherios Dimitrakis, Konstantinos Sgontzos, Yannis Tzitzikas
2020	J	`jnl`	Content-based Union and Complement Metrics for Dataset Search over RDF Knowledge Graphs. ACM J. Data Inf. Qual. Michalis Mountantonakis, Yannis Tzitzikas
2020	—	`conf`	Elas4RDF: Multi-perspective Triple-Centered Keyword Search over RDF Using Elasticsearch. ESWC (Satellite Events) Giorgos Kadilierakis, Christos Nikas, Pavlos Fafalios, Panagiotis Papadakos, Yannis Tzitzikas
2020	J	`jnl`	Faceted Search with Object Ranking and Answer Size Constraints. ACM Trans. Inf. Syst. Kostas Manioudakis, Yannis Tzitzikas
2020	—	`conf`	How Can a University Take Its First Steps in Open Data? MTSR Yannis Tzitzikas, Marios Pitikakis, Giorgos Giakoumis, Kalliopi Varouha, Eleni Karkanaki
2020	B	`conf`	Keyword Search over RDF Using Document-Centric Information Retrieval Systems. ESWC Giorgos Kadilierakis, Pavlos Fafalios, Panagiotis Papadakos, Yannis Tzitzikas
2020	J	`jnl`	Keyword Search over RDF: Is a Single Perspective Enough? Big Data Cogn. Comput. Christos Nikas, Giorgos Kadilierakis, Pavlos Fafalios, Yannis Tzitzikas
2020	—	`conf`	NLP for the Greek Language: A Brief Survey. SETN Katerina Papantoniou, Yannis Tzitzikas
2020	—	`conf`	On the Evolution of Semantic Warehouses: The Case of Global Record of Stocks and Fisheries. MTSR Yannis Marketakis, Yannis Tzitzikas, Aureliano Gentile, Bracken van Niekerk, Marc Taconet
2020	J	`jnl`	Reinforcing Fisheries Management through Semantic Data Integration. ERCIM News Yannis Tzitzikas, Yannis Marketakis
2020	—	`conf`	Two-stage Semantic Answer Type Prediction for Question Answering using BERT and Class-Specificity Rewarding. SMART@ISWC Christos Nikas, Pavlos Fafalios, Yannis Tzitzikas
2019	—	`conf`	Analytics over RDF Graphs. ISIP Maria-Evangelia Papadaki, Yannis Tzitzikas, Nicolas Spyratos
2019	J	`jnl`	CPOI: A Compact Method to Archive Versioned RDF Triple-Sets. CoRR Maria Psaraki, Yannis Tzitzikas
2019	J	`jnl`	CS563-QA: A Collection for Evaluating Question Answering Systems. CoRR Katerina Papantoniou, Yannis Tzitzikas
2019	—	`conf`	Crowd-Sourced Collection of Task-Oriented Human-Human Dialogues in a Multi-domain Scenario. TSD Norbert Braunschweiler, Panagiotis Papadakos, Margarita Kotti, Yannis Marketakis, Yannis Tzitzikas
2019	—	`conf`	Enabling Efficient Question Answering over Hundreds of Linked Datasets. ISIP Eleftherios Dimitrakis, Konstantinos Sgontzos, Michalis Mountantonakis, Yannis Tzitzikas
2019	—	`conf`	Extending Faceted Search with Automated Object Ranking. MTSR Kostas Manioudakis, Yannis Tzitzikas
2019	J	`jnl`	How Many and What Types of SPARQL Queries can be Answered through Zero-Knowledge Link Traversal? CoRR Pavlos Fafalios, Yannis Tzitzikas
2019	Misc	`conf`	How many and what types of SPARQL queries can be answered through zero-knowledge link traversal? SAC Pavlos Fafalios, Yannis Tzitzikas
2019	—	`conf`	Knowledge Graph Embeddings over Hundreds of Linked Datasets. MTSR Michalis Mountantonakis, Yannis Tzitzikas
2019	J	`jnl`	Large-scale Semantic Integration of Linked Data: A Survey. ACM Comput. Surv. Michalis Mountantonakis, Yannis Tzitzikas
2019	J	`jnl`	Preference-Enriched Faceted Search for Voting Aid Applications. IEEE Trans. Emerg. Top. Comput. Yannis Tzitzikas, Eleftherios Dimitrakis
2018	—	`conf`	An Interactive 3D Visualization for the LOD Cloud. EDBT/ICDT Workshops Maria-Evangelia Papadaki, Panagiotis Papadakos, Michalis Mountantonakis, Yannis Tzitzikas
2018	—	`book`	Cinderella's Stick - A Fairy Tale for Digital Preservation Yannis Tzitzikas, Yannis Marketakis
2018	J	`jnl`	Facetize: An Interactive Tool for Cleaning and Transforming Datasets for Facilitating Exploratory Search. CoRR Anna Kokolaki, Yannis Tzitzikas
2018	—	`conf`	Heuristics-based Query Reordering for Federated Queries in SPARQL 1.1 and SPARQL-LD. GeoLD-QuWeDa@ESWC Thanos Yannakis, Pavlos Fafalios, Yannis Tzitzikas
2018	J	`jnl`	Heuristics-based Query Reordering for Federated Queries in SPARQL 1.1 and SPARQL-LD. CoRR Thanos Yannakis, Pavlos Fafalios, Yannis Tzitzikas
2018	J	`jnl`	High Performance Methods for Linked Open Data Connectivity Analytics. Inf. Michalis Mountantonakis, Yannis Tzitzikas
2018	J	`jnl`	LODsyndesis: The Biggest Knowledge Graph of the Linked Open Data Cloud that Includes all Inferred Equivalence Relationships. ERCIM News Michalis Mountantonakis, Yannis Tzitzikas
2018	—	`conf`	On Finding the Relevant User Reviews for Advancing Conversational Faceted Search. EMSASW@ESWC Eleftherios Dimitrakis, Konstantinos Sgontzos, Panagiotis Papadakos, Yannis Marketakis, Alexandros Papangelis, Yannis Stylianou, Yannis Tzitzikas
2018	J	`jnl`	Scalable Methods for Measuring the Connectivity and Quality of Large Numbers of Linked Datasets. ACM J. Data Inf. Qual. Michalis Mountantonakis, Yannis Tzitzikas
2018	—	`conf`	Spoken Dialogue for Information Navigation. SIGDIAL Conference Alexandros Papangelis, Panagiotis Papadakos, Yannis Stylianou, Yannis Tzitzikas
2017	J	`jnl`	Faceted exploration of RDF/S datasets: a survey. J. Intell. Inf. Syst. Yannis Tzitzikas, Nikos Manolis, Panagiotis Papadakos
2017	B	`conf`	How Linked Data can Aid Machine Learning-Based Tasks. TPDL Michalis Mountantonakis, Yannis Tzitzikas
2017	J	`jnl`	LD-SDS: Towards an Expressive Spoken Dialogue System based on Linked-Data. CoRR Alexandros Papangelis, Panagiotis Papadakos, Margarita Kotti, Yannis Stylianou, Yannis Tzitzikas, Dimitris Plexousakis
2017	—	`conf`	Methods and Tools for Supporting the Integration of Stocks and Fisheries. HAICTA (Revised Selected Papers) Yannis Tzitzikas, Yannis Marketakis, Nikos Minadakis, Michalis Mountantonakis, Leonardo Candela, Francesco Mangiacrapa, Pasquale Pagano, Costantino Perciante, Donatella Castelli, Marc Taconet, Aureliano Gentile, Giulia Gorelli
2017	—	`conf`	PFSgeo: Preference-Enriched Faceted Search for Geographical Data. OTM Conferences (2) Panagiotis Lionakis, Yannis Tzitzikas
2017	J	`jnl`	Radius-aware approximate blank node matching using signatures. Knowl. Inf. Syst. Christina Lantzaki, Panagiotis Papadakos, Anastasia Analyti, Yannis Tzitzikas
2017	J	`jnl`	Services for Large Scale Semantic Integration of Data. ERCIM News Michalis Mountantonakis, Yannis Tzitzikas
2017	J	`jnl`	Stochastic reranking of biomedical search results based on extracted entities. J. Assoc. Inf. Sci. Technol. Pavlos Fafalios, Yannis Tzitzikas
2017	—	`conf`	Towards a Global Record of Stocks and Fisheries. HAICTA Yannis Tzitzikas, Yannis Marketakis, Nikos Minadakis, Michalis Mountantonakis, Leonardo Candela, Francesco Mangiacrapa, Pasquale Pagano, Costantino Perciante, Donatella Castelli, Marc Taconet, Aureliano Gentile, Giulia Gorelli
2016	J	`jnl`	Comparing the effectiveness of intentional preferences versus preferences over specific choices: a user study. Int. J. Inf. Decis. Sci. Panagiotis Papadakos, Yannis Tzitzikas
2016	J	`jnl`	On Measuring the Lattice of Commonalities Among Several Linked Datasets. Proc. VLDB Endow. Michalis Mountantonakis, Yannis Tzitzikas
2016	J	`jnl`	Quantifying the Connectivity of a Semantic Warehouse and Understanding its Evolution over Time. Int. J. Semantic Web Inf. Syst. Michalis Mountantonakis, Nikos Minadakis, Yannis Marketakis, Pavlos Fafalios, Yannis Tzitzikas
2016	B	`conf`	Querying the Web of Data with SPARQL-LD. TPDL Pavlos Fafalios, Thanos Yannakis, Yannis Tzitzikas
2016	J	`jnl`	Using preference-enriched faceted search for species identification. Int. J. Metadata Semant. Ontologies Yannis Tzitzikas, Nicolas Bailly, Panagiotis Papadakos, Nikos Minadakis, George Nikitakis
2015	J	`jnl`	Answering keyword queries through cached subqueries in best match retrieval models. J. Intell. Inf. Syst. Myron Papadakis, Yannis Tzitzikas
2015	J	`jnl`	Assisting digital interoperability and preservation through advanced dependency reasoning. Int. J. Digit. Libr. Yannis Tzitzikas, Yannis Kargakis, Yannis Marketakis
2015	—	`conf`	Entity-based Stochastic Analysis of Search Results for Query Expansion and Results Re-Ranking. TREC Pavlos Fafalios, Yannis Tzitzikas
2015	J	`jnl`	Exploiting Linked Data for Open and Configurable Named Entity Extraction. Int. J. Artif. Intell. Tools Pavlos Fafalios, Manolis Baritakis, Yannis Tzitzikas
2015	—	`conf`	SPARQL-LD: a SPARQL Extension for Fetching and Querying Linked Data. ISWC (Posters & Demos) Pavlos Fafalios, Yannis Tzitzikas
2015	—	`conf`	Species Identification Through Preference-Enriched Faceted Search. MTSR Yannis Tzitzikas, Nicolas Bailly, Panagiotis Papadakos, Nikos Minadakis, George Nikitakis
2015	J	`jnl`	Type-Ahead Exploratory Search through Typo and Word Order Tolerant Autocompletion. J. Web Eng. Pavlos Fafalios, Yannis Tzitzikas
2015	J	`jnl`	Unifying heterogeneous and distributed information about marine species through the top level ontology MarineTLO. Program Yannis Tzitzikas, Carlo Allocca, Chryssoula Bekiari, Yannis Marketakis, Pavlos Fafalios, Martin Doerr, Nikos Minadakis, Theodore Patkos, Leonardo Candela
2014	J	`jnl`	A case study on propagating and updating provenance information using the CIDOC CRM. Int. J. Digit. Libr. Christos Strubulis, Giorgos Flouris, Yannis Tzitzikas, Martin Doerr
2014	—	`conf`	Configuring Named Entity Extraction through Real-Time Exploitation of Linked Data. WIMS Pavlos Fafalios, Manolis Baritakis, Yannis Tzitzikas
2014	J	`jnl`	Curating the Specificity of Ontological Descriptions under Ontology Evolution. J. Data Semant. Yannis Tzitzikas, Mary Kampouraki, Anastasia Analyti
2014	J	`jnl`	Enriching Textual Search Results at Query Time Using Entity Mining, Linked Data and Link Analysis. Int. J. Semantic Comput. Pavlos Fafalios, Panagiotis Papadakos, Yannis Tzitzikas
2014	—	`conf`	Epimenides: An information system offering automated reasoning for the needs of digital preservation. JCDL Yannis Kargakis, Yannis Tzitzikas
2014	—	`conf`	Epimenides: Interoperability Reasoning for Digital Preservation. iPRES Yannis Kargakis, René van Horik, Yannis Tzitzikas
2014	—	`ch.`	Exploratory Professional Search through Semantic Post-Analysis of Search Results. Professional Search in the Modern World Pavlos Fafalios, Yannis Tzitzikas
2014	—	`conf`	Extending VoID for Expressing Connectivity Metrics of a Semantic Warehouse. PROFILES@ESWC Michalis Mountantonakis, Carlo Allocca, Pavlos Fafalios, Nikos Minadakis, Yannis Marketakis, Christina Lantzaki, Yannis Tzitzikas
2014	B	`conf`	Generating Synthetic RDF Data with Connected Blank Nodes for Benchmarking. ESWC Christina Lantzaki, Thanos Yannakis, Yannis Tzitzikas, Anastasia Analyti
2014	—	`conf`	Hippalus: Preference-enriched Faceted Exploration. EDBT/ICDT Workshops Panagiotis Papadakos, Yannis Tzitzikas
2014	B	`conf`	MatWare : Constructing and Exploiting Domain Specific Warehouses by Aggregating Semantic Data. ESWC Yannis Tzitzikas, Nikos Minadakis, Yannis Marketakis, Pavlos Fafalios, Carlo Allocca, Michalis Mountantonakis, Ioanna Zidianaki
2014	J	`jnl`	Ontology-based Integration of Heterogeneous and Distributed Information of the Marine Domain. ERCIM News Yannis Tzitzikas, Carlo Allocca, Chryssoula Bekiari, Yannis Marketakis, Pavlos Fafalios, Nikos Minadakis
2014	—	`conf`	Post-analysis of Keyword-Based Search Results Using Entity Mining, Linked Data, and Link Analysis at Query Time. ICSC Pavlos Fafalios, Yannis Tzitzikas
2014	—	`conf`	Quantifying the Connectivity of a Semantic Warehouse. EDBT/ICDT Workshops Yannis Tzitzikas, Nikos Minadakis, Yannis Marketakis, Pavlos Fafalios, Carlo Allocca, Michalis Mountantonakis
2014	J	`jnl`	Report on the 3rd MUMIA Training School on Information Retrieval and Interactive Information Access, July 21-25, 2014, FORTH, Heraklion, Crete, Greece. SIGIR Forum Michail Salampasis, Yannis Tzitzikas
2014	J	`jnl`	Scalable entity-based summarization of web search results using MapReduce. Distributed Parallel Databases Ioannis Kitsos, Kostas Magoutis, Yannis Tzitzikas
2014	J	`jnl`	Tasks that Require, or can Benefit from, Matching Blank Nodes. CoRR Christina Lantzaki, Yannis Tzitzikas
2013	J	`jnl`	A Simple Method to Produce Algorithmic MIDI Music based on Randomness, Simple Probabilities and Multi-Threading. CoRR Yannis Tzitzikas
2013	—	`conf`	Integrating Heterogeneous and Distributed Information about Marine Species through a Top Level Ontology. MTSR Yannis Tzitzikas, Carlo Allocca, Chryssoula Bekiari, Yannis Marketakis, Pavlos Fafalios, Martin Doerr, Nikos Minadakis, Theodore Patkos, Leonardo Candela
2013	J	`jnl`	Interactive Exploration of Multi-Dimensional and Hierarchical Information Spaces with Real-Time Preference Elicitation. Fundam. Informaticae Yannis Tzitzikas, Panagiotis Papadakos
2013	—	`conf`	Interoperability Objectives and Approaches: Results from the APARSEN NoE. iPRES Barbara Bazzanella, Yannis Tzitzikas
2013	A*	`conf`	X-ENS: semantic enrichment of web search results at real-time. SIGIR Pavlos Fafalios, Yannis Tzitzikas
2012	B	`conf`	An Interactive Exploratory System with Real-Time Preference Elicitation. WISE Panagiotis Papadakos, Yannis Tzitzikas, Dafni Zafeiri
2012	—	`conf`	Blank Node Matching and RDF/S Comparison Functions. ISWC (1) Yannis Tzitzikas, Christina Lantzaki, Dimitris Zeginis
2012	—	`conf`	Conversion and Emulation-aware Dependency Reasoning for Curation Services. iPRES Yannis Tzitzikas, Yannis Marketakis, Yannis Kargakis
2012	—	`conf`	Curating the Specificity of Metadata while World Models Evolve. iPRES Yannis Tzitzikas, Anastasia Analyti, Mary Kampouraki
2012	—	`conf`	Demonstrating Blank Node Matching and RDF/S Comparison Functions. ISWC (Posters & Demos) Christina Lantzaki, Yannis Tzitzikas, Dimitris Zeginis
2012	—	`conf`	Evolution of Workflow Provenance Information in the Presence of Custom Inference Rules. SWPM@ESWC Christos Strubulis, Yannis Tzitzikas, Martin Doerr, Giorgos Flouris
2012	J	`jnl`	Information Carriers and Identification of Information Objects: An Ontological Approach CoRR Martin Doerr, Yannis Tzitzikas
2012	J	`jnl`	On exploiting static and dynamically mined metadata for exploratory web searching. Knowl. Inf. Syst. Panagiotis Papadakos, Nikos Armenatzoglou, Stella Kopidaki, Yannis Tzitzikas
2012	—	`conf`	Scalable, flexible and generic instant overview search. WWW (Companion Volume) Pavlos Fafalios, Ioannis Kitsos, Yannis Tzitzikas
2012	J	`jnl`	Star-like auto-configurable layouts of variable radius for visualizing and exploring RDF/S ontologies. J. Vis. Lang. Comput. Stamatis Zampetakis, Yannis Tzitzikas, Asterios Leonidis, Dimitris Kotzinos
2012	—	`conf`	Towards a Long-term Preservation Infrastructure for Earth Science Data. iPRES Arif Shaon, Felix C. Engel, David Giaretta, Esther Conway, Brian Matthews, Yannis Tzitzikas, Yannis Marketakis, Holger Brocks, Ugo Di Giammatteo, Jinsongdi Yu, Raffaele Guarino, Fulvio Marelli, Shirley Y. Crompton
2012	—	`conf`	Web Searching with Entity Mining at Query Time. IRFC Pavlos Fafalios, Ioannis Kitsos, Yannis Marketakis, Claudio Baldassarre, Michail Salampasis, Yannis Tzitzikas
2011	B	`conf`	Exploiting Available Memory and Disk for Scalable Instant Overview Search. WISE Pavlos Fafalios, Yannis Tzitzikas
2011	—	`conf`	Interactive Exploration of Fuzzy RDF Knowledge Bases. ESWC (1) Nikos Manolis, Yannis Tzitzikas
2011	J	`jnl`	On Computing Deltas of RDF/S Knowledge Bases. ACM Trans. Web Dimitris Zeginis, Yannis Tzitzikas, Vassilis Christophides
2011	J	`jnl`	Query processing in distributed, taxonomy-based information sources CoRR Carlo Meghini, Yannis Tzitzikas, Veronica Coltella, Anastasia Analyti
2011	J	`jnl`	Similarity-based Browsing over Linked Open Data CoRR Michael Hickson, Yannis Kargakis, Yannis Tzitzikas
2010	B	`conf`	Advancing Search Query Autocompletion Services with More and Better Suggestions. ICWE Dimitrios Kastrinakis, Yannis Tzitzikas
2010	J	`jnl`	Automating the Ingestion and Transformation of Embedded Metadata. ERCIM News Yannis Tzitzikas, Yannis Marketakis
2010	J	`jnl`	Knowledge Management for Digital Preservation. ERCIM News Yannis Tzitzikas, Vassilis Christophides
2010	J	`jnl`	Modeling and querying provenance by extending CIDOC CRM. Distributed Parallel Databases Maria Theodoridou, Yannis Tzitzikas, Martin Doerr, Yannis Marketakis, Valantis Melessanakis
2010	—	`conf`	StarLion: Auto-configurable Layouts for Exploring Ontologies. ESWC (2) Stamatis Zampetakis, Yannis Tzitzikas, Asterios Leonidis, Dimitris Kotzinos
2010	—	`conf`	Task-Based Dependency Management for the Preservation of Digital Objects Using Rules. SETN Yannis Tzitzikas, Yannis Marketakis, Grigoris Antoniou
2009	—	`ch.`	Comparison with Other Techniques. Dynamic Taxonomies and Faceted Search Giovanni Maria Sacco, Sébastien Ferré, Yannis Tzitzikas
2009	—	`ch.`	Conclusions. Dynamic Taxonomies and Faceted Search Giovanni Maria Sacco, Yannis Tzitzikas
2009	J	`jnl`	Dependency management for digital preservation using semantic web technologies. Int. J. Digit. Libr. Yannis Marketakis, Yannis Tzitzikas
2009	—	`book`	Dynamic Taxonomies and Faceted Search: Theory, Practice, and Experience. Giovanni Maria Sacco, Yannis Tzitzikas
2009	—	`ch.`	Engineering Taxonomy-Based Sources. Dynamic Taxonomies and Faceted Search Yannis Tzitzikas
2009	—	`conf`	Exploratory Web Searching with Dynamic Taxonomies and Results Clustering. ECDL Panagiotis Papadakos, Stella Kopidaki, Nikos Armenatzoglou, Yannis Tzitzikas
2009	—	`ch.`	Faceted Taxonomy-Based Sources. Dynamic Taxonomies and Faceted Search Yannis Tzitzikas
2009	J	`jnl`	Object-Relational Database Representations for Text Indexing CoRR Panagiotis Papadakos, Yannis Theoharis, Yannis Marketakis, Nikos Armenatzoglou, Yannis Tzitzikas
2009	J	`jnl`	On Providing Intelligibility-Aware Preservation Services for Digital Objects. Data Sci. J. Yannis Tzitzikas
2009	C	`conf`	PreScan: towards automating the preservation of digital objects. MEDES Yannis Marketakis, Makis Tzanakis, Yannis Tzitzikas
2009	B	`conf`	STC+ and NM-STC: Two Novel Online Results Clustering Methods for Web Searching. WISE Stella Kopidaki, Panagiotis Papadakos, Yannis Tzitzikas
2009	A	`conf`	Specifying Valid Compound Terms in Interrelated Faceted Taxonomies. ER Anastasia Analyti, Yannis Tzitzikas, Nicolas Spyratos
2009	—	`ch.`	System Implementation. Dynamic Taxonomies and Faceted Search Giovanni Maria Sacco, Yannis Tzitzikas, Sébastien Ferré
2008	J	`jnl`	Abduction for Accessing Information Sources. Fundam. Informaticae Carlo Meghini, Yannis Tzitzikas, Nicolas Spyratos
2008	—	`conf`	FleXplorer: A Framework for Providing Faceted and Dynamic Taxonomy-Based Information Exploration. DEXA Workshops Yannis Tzitzikas, Nikos Armenatzoglou, Panagiotis Papadakos
2008	—	`conf`	Mitos: Design and Evaluation of a DBMS-Based Web Search Engine. Panhellenic Conference on Informatics Panagiotis Papadakos, Yannis Theoharis, Yannis Marketakis, Nikos Armenatzoglou, Yannis Tzitzikas
2008	J	`jnl`	On Graph Features of Semantic Web Schemas. IEEE Trans. Knowl. Data Eng. Yannis Theoharis, Yannis Tzitzikas, Dimitris Kotzinos, Vassilis Christophides
2008	B	`conf`	On Storage Policies for Semantic Web Repositories That Support Versioning. ESWC Yannis Tzitzikas, Yannis Theoharis, Dimitris Andreou
2008	C	`conf`	On a Probabilistic Combination of Prediction Sources. ISMIS Ioannis Rousidis, George Tzagkarakis, Dimitris Plexousakis, Yannis Tzitzikas
2008	J	`jnl`	The Anatomy of Mitos Web Search Engine CoRR 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
2007	—	`conf`	(Semantic web) evolution through change logs: Problems and solutions. Artificial Intelligence and Applications Yannis Tzitzikas, Dimitris Kotzinos
2007	J	`jnl`	An algebra for specifying valid compound terms in faceted taxonomies. Data Knowl. Eng. Yannis Tzitzikas, Anastasia Analyti, Nicolas Spyratos, Panos Constantopoulos
2007	C	`conf`	Dependency Management for the Preservation of Digital Information. DEXA Yannis Tzitzikas
2007	J	`jnl`	Emergent Knowledge Artifacts for Supporting Trialogical E-Learning. Int. J. Web Based Learn. Teach. Technol. Yannis Tzitzikas, Vassilis Christophides, Giorgos Flouris, Dimitris Kotzinos, Hannu Markkanen, Dimitris Plexousakis, Nicolas Spyratos
2007	J	`jnl`	Evolution of faceted taxonomies and CTCA expressions. Knowl. Inf. Syst. Yannis Tzitzikas
2007	—	`conf`	Faceted Taxonomy-based Information Management. DEXA Workshops Yannis Tzitzikas, Anastasia Analyti
2007	—	`conf`	Mind the (Intelligibility) Gap. ECDL Yannis Tzitzikas, Giorgos Flouris
2007	A	`conf`	Naming Functions for the Vector Space Model. ECIR Yannis Tzitzikas, Yannis Theoharis
2007	J	`jnl`	On Ranking RDF Schema Elements (and its Application in Visualization). J. Univers. Comput. Sci. Yannis Tzitzikas, Dimitris Kotzinos, Yannis Theoharis
2007	—	`conf`	On the Foundations of Computing Deltas Between RDF Models. ISWC/ASWC Dimitris Zeginis, Yannis Tzitzikas, Vassilis Christophides
2007	J	`jnl`	Query Evaluation in P2P Systems of Taxonomy-based Sources: Algorithms, Complexity, and Optimizations CoRR Carlo Meghini, Yannis Tzitzikas, Anastasia Analyti
2006	J	`jnl`	A unified interaction scheme for information sources. J. Intell. Inf. Syst. Yannis Tzitzikas, Carlo Meghini, Nicolas Spyratos
2006	—	`conf`	Abduction for Extending Incomplete Information Sources. SETN Carlo Meghini, Yannis Tzitzikas, Nicolas Spyratos
2006	J	`jnl`	An algebraic method for compressing symbolic data tables. Intell. Data Anal. Yannis Tzitzikas
2006	—	`conf`	Emergent Knowledge Artifacts for Supporting Trialogical E-Learning. EC-TEL Workshops Yannis Tzitzikas, Vassilis Christophides, Giorgos Flouris, Dimitris Kotzinos, Hannu Markkanen, Dimitris Plexousakis, Nicolas Spyratos
2006	J	`jnl`	Mining the meaningful term conjunctions from materialised faceted taxonomies: algorithms and complexity. Knowl. Inf. Syst. Yannis Tzitzikas, Anastasia Analyti
2006	B	`conf`	On the visualization of large-sized ontologies. AVI Yannis Tzitzikas, Jean-Luc Hainaut
2006	—	`conf`	Revising Faceted Taxonomies and CTCA Expressions. SETN Yannis Tzitzikas
2006	B	`conf`	Trialogical E-Learning and Emergent Knowledge Artifacts. EC-TEL Yannis Tzitzikas, Vassilis Christophides, Giorgos Flouris, Dimitris Kotzinos, Hannu Markkanen, Dimitris Plexousakis, Nicolas Spyratos
2005	J	`jnl`	Compound Term Composition Algebra: The Semantics. J. Data Semant. Yannis Tzitzikas, Anastasia Analyti, Nicolas Spyratos
2005	A	`conf`	How to Tame a Very Large ER Diagram (Using Link Analysis and Force-Directed Drawing Algorithms). ER Yannis Tzitzikas, Jean-Luc Hainaut
2005	J	`jnl`	Mediators over taxonomy-based information sources. VLDB J. Yannis Tzitzikas, Nicolas Spyratos, Panos Constantopoulos
2004	C	`conf`	A Unifying Framework for Flexible Information Access in Taxonomy-Based Sources. FQAS Yannis Tzitzikas, Carlo Meghini, Nicolas Spyratos
2004	—	`ed.`	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 EDBT Workshops Wolfgang Lindner, Marco Mesiti, Can Türker, Yannis Tzitzikas, Athena Vakali
2004	A	`conf`	FASTAXON: A System for FAST (and Faceted) TAXONomy Design. ER Yannis Tzitzikas, Raimo Launonen, Mika Hakkarainen, Pekka Korhonen, Tero Leppänen, Esko Simpanen, Hannu Törnroos, Pekka Uusitalo, Pentti Vänskä
2004	—	`conf`	Mining the Meaningful Compound Terms from Materialized Faceted Taxonomies. CoopIS/DOA/ODBASE (2) Yannis Tzitzikas, Anastasia Analyti
2004	—	`conf`	Querying Articulated Sources. CoopIS/DOA/ODBASE (2) Carlo Meghini, Yannis Tzitzikas
2004	—	`conf`	Towards a Generalized Interaction Scheme for Information Access. FoIKS Yannis Tzitzikas, Carlo Meghini, Nicolas Spyratos
2003	B	`conf`	An Abduction-Based Method for Index Relaxation in Taxonomy-Based Sources. MFCS Carlo Meghini, Yannis Tzitzikas, Nicolas Spyratos
2003	C	`conf`	An Algebraic Approach for Specifying Compound Terms in Faceted Taxonomies. EJC Yannis Tzitzikas, Anastasia Analyti, Nicolas Spyratos, Panos Constantopoulos
2003	—	`conf`	Ostensive Automatic Schema Mapping for Taxonomy-Based Peer-to-Peer Systems. CIA Yannis Tzitzikas, Carlo Meghini
2003	—	`conf`	Query Evaluation in Peer-to-Peer Networks of Taxonomy-Based Sources. OTM Yannis Tzitzikas, Carlo Meghini
2003	—	`conf`	Query Evaluation over Networks of Logic-based Mediators (Position Paper). Description Logics Carlo Meghini, Yannis Tzitzikas
2003	A	`conf`	Taxonomy-Based Conceptual Modeling for Peer-to-Peer Networks. ER Yannis Tzitzikas, Carlo Meghini, Nicolas Spyratos
2003	—	`conf`	The Semantics of the Compound Term Composition Algebra. OTM Yannis Tzitzikas, Anastasia Analyti, Nicolas Spyratos
2002	—	`—`	Collaborative ontology-based information indexing and retrieval Yannis Tzitzikas
2002	A	`conf`	Extended Faceted Ontologies. CAiSE Yannis Tzitzikas, Nicolas Spyratos, Panos Constantopoulos, Anastasia Analyti
2002	B	`conf`	Extended Faceted Taxonomies for Web Catalogs. WISE Yannis Tzitzikas, Nicolas Spyratos, Panos Constantopoulos, Anastasia Analyti
2002	Misc	`conf`	On Personalizing the Catalogs of Web Portals. FLAIRS Nicolas Spyratos, Yannis Tzitzikas, Vassilis Christophides
2002	—	`conf`	Query Translation for Mediators over Ontology-Based Information Sources. SETN Yannis Tzitzikas, Nicolas Spyratos, Panos Constantopoulos
2001	C	`conf`	Democratic Data Fusion for Information Retrieval Mediators. AICCSA Yannis Tzitzikas
2001	—	`conf`	Mediators over Ontology-Based Information Sources. WISE (1) Yannis Tzitzikas, Panos Constantopoulos, Nicolas Spyratos
1996	A	`conf`	Context-Driven Information Base Update. CAiSE Panos Constantopoulos, Yannis Tzitzikas