Yannis Velegrakis

ORCID

Publication Activity (10 Years)

Years Active: 1999-2024
Publications (10 Years): 49

Top Venues

Publications

George Papadakis, Ekaterini Ioannou, Yannis Velegrakis
Unveiling Dis-Integration. ICDE (2024)
Duygu Sezen Islakoglu, Melisachew Wudage Chekol, Yannis Velegrakis
Leveraging Pre-trained Language Models for Time Interval Prediction in Text-Enhanced Temporal Knowledge Graphs. ESWC (1) (2024)
Jules Morand, Shoichi Yip, Yannis Velegrakis, Gianluca Lattanzi, Raffaello Potestio, Luca Tubiana
Emergent circulation patterns from anonymized mobility data: Clustering Italy in the time of Covid. CoRR (2023)
Vasilis Efthymiou, Ekaterini Ioannou, Manos Karvounis, Manolis Koubarakis, Jakub Maciejewski, Konstantinos Nikoletos, George Papadakis, Dimitris Skoutas, Yannis Velegrakis, Alexandros Zeakis
Self-configured Entity Resolution with pyJedAI. BigData (2023)
Duygu Sezen Islakoglu, Mel Chekol, Yannis Velegrakis
Leveraging Pre-trained Language Models for Time Interval Prediction in Text-Enhanced Temporal Knowledge Graphs. CoRR (2023)
Olaf Kampers, Abdulhakim Qahtan, Swati Mathur, Yannis Velegrakis
Manipulation detection in cryptocurrency markets: an anomaly and change detection based approach. SAC (2022)
Daniele Foroni, Matteo Lissandrini, Yannis Velegrakis
The F4U System for Understanding the Effects of Data Quality. ICDE (2021)
Wessel Radstok, Mel Chekol, Yannis Velegrakis
Leveraging Static Models for Link Prediction in Temporal Knowledge Graphs. ICTAI (2021)
Daniele Foroni, Matteo Lissandrini, Yannis Velegrakis
Estimating the extent of the effects of Data Quality through Observations. ICDE (2021)
Giulia Preti, Matteo Lissandrini, Davide Mottin, Yannis Velegrakis
Mining patterns in graphs with multiple weights. Distributed Parallel Databases 39 (2) (2021)
Giulia Preti, Polina Rozenshtein, Aristides Gionis, Yannis Velegrakis
Discovering Dense Correlated Subgraphs in Dynamic Networks. CoRR (2021)
Giulia Preti, Polina Rozenshtein, Aristides Gionis, Yannis Velegrakis
Discovering Dense Correlated Subgraphs in Dynamic Networks. PAKDD (1) (2021)
Polina Rozenshtein, Giulia Preti, Aristides Gionis, Yannis Velegrakis
Mining Dense Subgraphs with Similar Edges. ECML/PKDD (3) (2020)
Denis Gallo, Matteo Lissandrini, Yannis Velegrakis
Personalized Page Rank on Knowledge Graphs: Particle Filtering is all you need! EDBT (2020)
Matteo Lissandrini, Davide Mottin, Themis Palpanas, Yannis Velegrakis
Graph-Query Suggestions for Knowledge Graph Exploration. WWW (2020)
Polina Rozenshtein, Giulia Preti, Aristides Gionis, Yannis Velegrakis
Mining Dense Subgraphs with Similar Edges. CoRR (2020)
Matteo Paganelli, Paolo Sottovia, Francesco Guerra, Yannis Velegrakis
TuneR: Fine Tuning of Rule-based Entity Matchers. CIKM (2019)
Ekaterini Ioannou, Yannis Velegrakis
: Data for a thorough benchmarking of matching-related methods. Semantic Web 10 (2) (2019)
Matteo Lissandrini, Davide Mottin, Themis Palpanas, Yannis Velegrakis
Example-based Search: a New Frontier for Exploratory Search. SIGIR (2019)
Davide Mottin, Matteo Lissandrini, Yannis Velegrakis, Themis Palpanas
Exploring the Data Wilderness through Examples. SIGMOD Conference (2019)
Paolo Sottovia, Matteo Paganelli, Francesco Guerra, Yannis Velegrakis
Finding Synonymous Attributes in Evolving Wikipedia Infoboxes. ADBIS (2019)
Giulia Preti, Polina Rozenshtein, Aristides Gionis, Yannis Velegrakis
ExCoDE: a Tool for Discovering and Visualizing Regions of Correlation in Dynamic Networks. ICDM Workshops (2019)
Cristian Consonni, Paolo Sottovia, Alberto Montresor, Yannis Velegrakis
Discovering Order Dependencies through Order Compatibility. EDBT (2019)
Daniele Foroni, Cristian Axenie, Stefano Bortoli, Mohamad Al Hajj Hassan, Ralph Acker, Radu Tudoran, Goetz Brasche, Yannis Velegrakis
Moira: A Goal-Oriented Incremental Machine Learning Approach to Dynamic Resource Cost Estimation in Distributed Stream Processing Systems. BIRTE (2018)
Matteo Lissandrini, Davide Mottin, Themis Palpanas, Yannis Velegrakis
Multi-Example Search in Rich Information Graphs. ICDE (2018)
Spyros Sioutas, Yannis Velegrakis, Valia Kordoni
Introduction to the special section on New Trends in Humanistic Informatics: Implementations and Applications. Comput. Electr. Eng. 65 (2018)
Giulia Preti, Matteo Lissandrini, Davide Mottin, Yannis Velegrakis
Beyond Frequencies: Graph Pattern Mining in Multi-weighted Graphs. EDBT (2018)
Dimitra Papadimitriou, Georgia Koutrika, Yannis Velegrakis, John Mylopoulos
Finding Related Forum Posts through Content Similarity over Intention-Based Segmentation (Extended Abstract). ICDE (2018)
Matteo Lissandrini, Davide Mottin, Themis Palpanas, Yannis Velegrakis
X2Q: Your Personal Example-based Graph Explorer. Proc. VLDB Endow. 11 (12) (2018)
Matteo Lissandrini, Martin Brugnara, Yannis Velegrakis
Beyond Macrobenchmarks: Microbenchmark-based Graph Database Evaluation. Proc. VLDB Endow. 12 (4) (2018)
Spyros Sioutas, Yannis Velegrakis, Valia Kordoni
Introduction to the special section on New Trends in Humanistic Informatics: Implementations and Applications. Comput. Electr. Eng. 70 (2018)
Dimitra Papadimitriou, Yannis Velegrakis, Georgia Koutrika
Modeling and Exploiting Goal and Action Associations for Recommendations. EDBT (2018)
Francesco Guerra, Yannis Velegrakis, Jorge Cardoso, John G. Breslin
The KEYSTONE IC1302 COST Action. International KEYSTONE Conference (2017)
Dimitra Papadimitriou, Georgia Koutrika, Yannis Velegrakis, John Mylopoulos
Finding Related Forum Posts through Content Similarity over Intention-Based Segmentation. IEEE Trans. Knowl. Data Eng. 29 (9) (2017)
Sabeur Aridhi, Alberto Montresor, Yannis Velegrakis
BLADYG: A Graph Processing Framework for Large Dynamic Graphs. Big Data Res. 9 (2017)
Siarhei Bykau, Jihwan Lee, Divesh Srivastava, Yannis Velegrakis
"Tell me more" using Ladders in Wikipedia. WebDB (2017)
Domenico Beneventano, Francesco Guerra, Yannis Velegrakis
Data Exploration on Large Amount of Relational Data through Keyword Queries. HPCS (2017)
Sara Cadegnani, Francesco Guerra, Sergio Ilarri, María del Carmen Rodríguez-Hernández, Raquel Trillo Lado, Yannis Velegrakis, Raquel Amaro
Exploiting Linguistic Analysis on URLs for Recommending Web Pages: A Comparative Study. Trans. Comput. Collect. Intell. 26 (2017)
Sabeur Aridhi, Alberto Montresor, Yannis Velegrakis
BLADYG: A Graph Processing Framework for Large Dynamic Graphs. CoRR (2017)
Davide Mottin, Matteo Lissandrini, Yannis Velegrakis, Themis Palpanas
New Trends on Exploratory Methods for Data Analytics. Proc. VLDB Endow. 10 (12) (2017)
Sabeur Aridhi, Martin Brugnara, Alberto Montresor, Yannis Velegrakis
Distributed k-core decomposition and maintenance in large dynamic graphs. DEBS (2016)
Davide Mottin, Matteo Lissandrini, Yannis Velegrakis, Themis Palpanas
Exemplar queries: a new way of searching. VLDB J. 25 (6) (2016)
Ekaterini Ioannou, Yannis Velegrakis
Searching Web 2.0 Data Through Entity-Based Aggregation. Trans. Comput. Collect. Intell. 21 (2016)
Sonia Bergamaschi, Francesco Guerra, Matteo Interlandi, Raquel Trillo Lado, Yannis Velegrakis
Combining user and database perspective for solving keyword queries over relational databases. Inf. Syst. 55 (2016)
Davide Mottin, Alice Marascu, Senjuti Basu Roy, Gautam Das, Themis Palpanas, Yannis Velegrakis
A holistic and principled approach for the empty-answer problem. VLDB J. 25 (4) (2016)
Sabeur Aridhi, Alberto Montresor, Yannis Velegrakis
BLADYG: A Novel Block-Centric Framework for the Analysis of Large Dynamic Graphs. HPGP@HPDC (2016)
Sonia Bergamaschi, Davide Ferrari, Francesco Guerra, Giovanni Simonini, Yannis Velegrakis
Providing Insight into Data Source Topics. J. Data Semant. 5 (4) (2016)
Dimitra Papadimitriou, Georgia Koutrika, John Mylopoulos, Yannis Velegrakis
The Goal Behind the Action: Toward Goal-Aware Systems and Applications. ACM Trans. Database Syst. 41 (4) (2016)
Enrico Sartori, Yannis Velegrakis, Francesco Guerra
Entity-Based Keyword Search in Web Documents. Trans. Comput. Collect. Intell. 21 (2016)
Dimitra Papadimitriou, Yannis Velegrakis, Georgia Koutrika, John Mylopoulos
Goals in Social Media, information retrieval and intelligent agents. ICDE (2015)
Sara Cadegnani, Francesco Guerra, Sergio Ilarri, María del Carmen Rodríguez-Hernández, Raquel Trillo Lado, Yannis Velegrakis
Recommending Web Pages Using Item-Based Collaborative Filtering Approaches. International KEYSTONE Conference (2015)
Siarhei Bykau, Flip Korn, Divesh Srivastava, Yannis Velegrakis
Fine-grained controversy detection in Wikipedia. ICDE (2015)
Piotr Kozikowski, Ekaterini Ioannou, Yannis Velegrakis, Francesco Guerra
Support of Part-Whole Relations in Query Answering. International KEYSTONE Conference (2015)
Paulo Rupino da Cunha, Ngoc Thanh Nguyen, Omar Boucelma, Bogdan Cautis, Yannis Velegrakis
Research Challenges and Avenues in Surfacing the Deep and the Social Web. SDSW@ISWC (2014)
Alessio Guerrieri, Alberto Montresor, Yannis Velegrakis
Top-k Item Identification on Dynamic and Distributed Datasets. Euro-Par (2014)
Ekaterini Ioannou, Yannis Velegrakis
EMBench: Generating Entity-Related Benchmark Data. ISWC (Posters & Demos) (2014)
Davide Mottin, Alice Marascu, Senjuti Basu Roy, Gautam Das, Themis Palpanas, Yannis Velegrakis
IQR: an interactive query relaxation system for the empty-answer problem. SIGMOD Conference (2014)
Mehdi Haddad, Jovan Stevovic, Annamaria Chiasera, Yannis Velegrakis, Mohand-Said Hacid
Access Control for Data Integration in Presence of Data Dependencies. DASFAA (2) (2014)
Matteo Lissandrini, Davide Mottin, Themis Palpanas, Dimitra Papadimitriou, Yannis Velegrakis
Unleashing the Power of Information Graphs. SIGMOD Rec. 43 (4) (2014)
Davide Mottin, Matteo Lissandrini, Yannis Velegrakis, Themis Palpanas
Exemplar Queries: Give me an Example of What You Need. Proc. VLDB Endow. 7 (5) (2014)
Davide Mottin, Matteo Lissandrini, Yannis Velegrakis, Themis Palpanas
Searching with XQ: the exemplar query search engine. SIGMOD Conference (2014)
Sonia Bergamaschi, Francesco Guerra, Matteo Interlandi, Silvia Rota, Raquel Trillo, Yannis Velegrakis
Using a HMM based approach for mapping keyword queries into database terms. SEBD (2013)
Davide Mottin, Themis Palpanas, Yannis Velegrakis
Entity ranking using click-log information. Intell. Data Anal. 17 (5) (2013)
Davide Mottin, Alice Marascu, Senjuti Basu Roy, Gautam Das, Themis Palpanas, Yannis Velegrakis
A Probabilistic Optimization Framework for the Empty-Answer Problem. Proc. VLDB Endow. 6 (14) (2013)
Themis Palpanas, Yannis Velegrakis
Front Matter. Proc. VLDB Endow. 6 (10) (2013)
Siarhei Bykau, Flavio Rizzolo, Yannis Velegrakis
A query answering system for data with evolution relationships. SIGMOD Conference (2013)
Ivan Bedini, Benedikt Elser, Yannis Velegrakis
The Trento Big Data Platform for Public Administration and Large Companies: Use cases and Opportunities. Proc. VLDB Endow. 6 (11) (2013)
Ekaterini Ioannou, Nataliya Rassadko, Yannis Velegrakis
On Generating Benchmark Data for Entity Matching. J. Data Semant. 2 (1) (2013)
Sonia Bergamaschi, Francesco Guerra, Matteo Interlandi, Raquel Trillo Lado, Yannis Velegrakis
QUEST: A Keyword Search System for Relational Data based on Semantic and Machine Learning Techniques. Proc. VLDB Endow. 6 (12) (2013)
Roberto De Virgilio, Fausto Giunchiglia, Francesco Guerra, Letizia Tanca, Yannis Velegrakis
Introduction to the Special Issue on Semantic Web Data Management. Inf. Syst. 37 (4) (2012)
Siarhei Bykau, John Mylopoulos, Flavio Rizzolo, Yannis Velegrakis
On Modeling and Querying Concept Evolution. J. Data Semant. 1 (1) (2012)
Themis Palpanas, Yannis Velegrakis
dbTrento: the data and information management group at the University of Trento. SIGMOD Rec. 41 (3) (2012)
Oktie Hassanzadeh, Anastasios Kementsietsidis, Yannis Velegrakis
Data Management Issues on the Semantic Web. ICDE (2012)
Angela Bonifati, Yannis Velegrakis
Schema matching and mapping: from usage to evaluation. EDBT (2011)
Sonia Bergamaschi, Francesco Guerra, Silvia Rota, Yannis Velegrakis
Understanding linked open data through keyword searching: the KEYRY approach. EDBT/ICDT Workshop on Linked Web Data Management (2011)
Siarhei Bykau, John Mylopoulos, Flavio Rizzolo, Yannis Velegrakis
Supporting queries spanning across phases of evolving artifacts using Steiner forests. CIKM (2011)
Ekaterini Ioannou, Wolfgang Nejdl, Claudia Niederée, Yannis Velegrakis
LinkDB: a probabilistic linkage database system. SIGMOD Conference (2011)
Sonia Bergamaschi, Francesco Guerra, Silvia Rota, Yannis Velegrakis
A Hidden Markov Model Approach to Keyword-Based Search over Relational Databases. ER (2011)
Sonia Bergamaschi, Elton Domnori, Francesco Guerra, Raquel Trillo Lado, Yannis Velegrakis
Keyword search over relational databases: a metadata approach. SIGMOD Conference (2011)
Sonia Bergamaschi, Elton Domnori, Francesco Guerra, Raquel Trillo Lado, Yannis Velegrakis
Keyword-based Search in Data Integration Systems. SEBD (2011)
Sonia Bergamaschi, Francesco Guerra, Silvia Rota, Yannis Velegrakis
KEYRY: A Keyword-Based Search Engine over Relational Databases Based on a Hidden Markov Model. ER Workshops (2011)
Akrivi Katifori, Charalampos Nikolaou, Manolis Platakis, Yannis E. Ioannidis, A. Tympas, Manolis Koubarakis, Nikos Sarris, V. Tountopoulos, Efstratios Tzoannos, Siarhei Bykau, Nadzeya Kiyavitskaya, Chrisa Tsinaraki, Yannis Velegrakis
The Papyrus Digital Library: Discovering History in the News. TPDL (2011)
Siarhei Bykau, Nadzeya Kiyavitskaya, Chrisa Tsinaraki, Yannis Velegrakis
Bridging the Gap between Heterogeneous and Semantically Diverse Content of Different Disciplines. DEXA Workshops (2010)
Ekaterini Ioannou, Claudia Niederée, Yannis Velegrakis
Enabling entity-based aggregators for web 2.0 data. WWW (2010)
Ekaterini Ioannou, Wolfgang Nejdl, Claudia Niederée, Yannis Velegrakis
On-the-Fly Entity-Aware Query Processing in the Presence of Linkage. Proc. VLDB Endow. 3 (1) (2010)
Chrisa Tsinaraki, Yannis Velegrakis, Nadzeya Kiyavitskaya, John Mylopoulos
A Context-Based Model for the Interpretation of Polysemous Terms. OTM Conferences (2) (2010)
Sonia Bergamaschi, Elton Domnori, Francesco Guerra, Mirko Orsini, Raquel Trillo Lado, Yannis Velegrakis
Keymantic: Semantic Keyword-based Searching in Data Integration Systems. Proc. VLDB Endow. 3 (2) (2010)
Flavio Rizzolo, Yannis Velegrakis, John Mylopoulos, Siarhei Bykau
Modeling Concept Evolution: A Historical Perspective. ER (2009)
Andrea Presa, Yannis Velegrakis, Flavio Rizzolo, Siarhei Bykau
Modeling Associations through Intensional Attributes. ER (2009)
Ronald Fagin, Laura M. Haas, Mauricio A. Hernández, Renée J. Miller, Lucian Popa, Yannis Velegrakis
Clio: Schema Mapping Creation and Data Exchange. Conceptual Modeling: Foundations and Applications (2009)
Alexis Morris, Yannis Velegrakis, Paolo Bouquet
Entity Identification on the Semantic Web. SWAP (2008)
Bogdan Alexe, Wang Chiew Tan, Yannis Velegrakis
STBenchmark: towards a benchmark for mapping systems. Proc. VLDB Endow. 1 (1) (2008)
Themis Palpanas, Junaid Ahsenali Chaudhry, Periklis Andritsos, Yannis Velegrakis
Entity Data Management in OKKAM. DEXA Workshops (2008)
Annamaria Chiasera, Fabio Casati, Florian Daniel, Yannis Velegrakis
Engineering Privacy Requirements in Business Intelligence Applications. Secure Data Management (2008)
Bogdan Alexe, Wang Chiew Tan, Yannis Velegrakis
Comparing and evaluating mapping systems with STBenchmark. Proc. VLDB Endow. 1 (2) (2008)
Divesh Srivastava, Yannis Velegrakis
MMS: Using Queries As Data Values for Metadata Management. ICDE (2007)
Divesh Srivastava, Yannis Velegrakis
Intensional associations between data and metadata. SIGMOD Conference (2007)
Divesh Srivastava, Yannis Velegrakis
Using Queries to Associate Metadata with Data. ICDE (2007)
Yannis Kotidis, Divesh Srivastava, Yannis Velegrakis
Updates Through Views: A New Hope. ICDE (2006)
Yannis Velegrakis, Renée J. Miller, John Mylopoulos
Representing and Querying Data Transformations. ICDE (2005)

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Publication Activity (10 Years)

Top Topics

Top Venues

Yannis Velegrakis