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Yannis Velegrakis

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affiliation: Utrecht University, The Netherlands

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Books and Theses

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2018
[b2]
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Matteo Lissandrini, Davide Mottin, Themis Palpanas, Yannis Velegrakis:
Data Exploration Using Example-Based Methods. Synthesis Lectures on Data Management, Morgan & Claypool Publishers 2018, ISBN 978-3-031-00738-5
2005
[b1]
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Yannis Velegrakis:
Managing schema mappings in highly heterogeneous environments. University of Toronto, Canada, 2005

Journal Articles

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2025
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Jakub Maciejewski, Konstantinos Nikoletos, George Papadakis, Yannis Velegrakis:
Progressive Entity Matching: A Design Space Exploration. Proc. ACM Manag. Data 3(1): 65:1-65:25 (2025)
[j37]
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Ramón Rico, Arno Siebes, Yannis Velegrakis:
New Trends in Data Forgetting for Sustainable Data Management. Proc. VLDB Endow. 18(12): 5472-5476 (2025)
2021
[j36]
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Giulia Preti, Matteo Lissandrini, Davide Mottin, Yannis Velegrakis:
Mining patterns in graphs with multiple weights. Distributed Parallel Databases 39(2): 281-319 (2021)
2019
[j35]
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Ekaterini Ioannou, Yannis Velegrakis:
EMBench⁺⁺: Data for a thorough benchmarking of matching-related methods. Semantic Web 10(2): 435-450 (2019)
2018
[j34]
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Spyros Sioutas, Yannis Velegrakis, Valia Kordoni:
Introduction to the special section on New Trends in Humanistic Informatics: Implementations and Applications. Comput. Electr. Eng. 65: 425-427 (2018)
[j33]
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Spyros Sioutas, Yannis Velegrakis, Valia Kordoni:
Introduction to the special section on New Trends in Humanistic Informatics: Implementations and Applications. Comput. Electr. Eng. 70: 1086-1088 (2018)
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Matteo Lissandrini, Davide Mottin, Themis Palpanas, Yannis Velegrakis:
X2Q: Your Personal Example-based Graph Explorer. Proc. VLDB Endow. 11(12): 2026-2029 (2018)
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Matteo Lissandrini, Martin Brugnara, Yannis Velegrakis:
Beyond Macrobenchmarks: Microbenchmark-based Graph Database Evaluation. Proc. VLDB Endow. 12(4): 390-403 (2018)
2017
[j30]
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Sabeur Aridhi, Alberto Montresor, Yannis Velegrakis:
BLADYG: A Graph Processing Framework for Large Dynamic Graphs. Big Data Res. 9: 9-17 (2017)
[j29]
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Davide Mottin, Matteo Lissandrini, Yannis Velegrakis, Themis Palpanas:
New Trends on Exploratory Methods for Data Analytics. Proc. VLDB Endow. 10(12): 1977-1980 (2017)
[j28]
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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: 26-45 (2017)
[j27]
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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): 1860-1873 (2017)
2016
[j26]
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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: 1-19 (2016)
[j25]
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Sonia Bergamaschi, Davide Ferrari, Francesco Guerra, Giovanni Simonini, Yannis Velegrakis:
Providing Insight into Data Source Topics. J. Data Semant. 5(4): 211-228 (2016)
[j24]
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Enrico Sartori, Yannis Velegrakis, Francesco Guerra:
Entity-Based Keyword Search in Web Documents. Trans. Comput. Collect. Intell. 21: 21-49 (2016)
[j23]
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Ekaterini Ioannou, Yannis Velegrakis:
Searching Web 2.0 Data Through Entity-Based Aggregation. Trans. Comput. Collect. Intell. 21: 159-174 (2016)
[j22]
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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): 23:1-23:43 (2016)
[j21]
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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): 597-622 (2016)
[j20]
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Davide Mottin, Matteo Lissandrini, Yannis Velegrakis, Themis Palpanas:
Exemplar queries: a new way of searching. VLDB J. 25(6): 741-765 (2016)
2014
[j19]
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Davide Mottin, Matteo Lissandrini, Yannis Velegrakis, Themis Palpanas:
Exemplar Queries: Give me an Example of What You Need. Proc. VLDB Endow. 7(5): 365-376 (2014)
[j18]
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Matteo Lissandrini, Davide Mottin, Themis Palpanas, Dimitra Papadimitriou, Yannis Velegrakis:
Unleashing the Power of Information Graphs. SIGMOD Rec. 43(4): 21-26 (2014)
2013
[j17]
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Davide Mottin, Themis Palpanas, Yannis Velegrakis:
Entity ranking using click-log information. Intell. Data Anal. 17(5): 837-856 (2013)
[j16]
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Ekaterini Ioannou, Nataliya Rassadko, Yannis Velegrakis:
On Generating Benchmark Data for Entity Matching. J. Data Semant. 2(1): 37-56 (2013)
[j15]
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Themis Palpanas, Yannis Velegrakis:
Front Matter. Proc. VLDB Endow. 6(10): i-x (2013)
[j14]
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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): 1166-1167 (2013)
[j13]
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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): 1222-1225 (2013)
[j12]
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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): 1762-1773 (2013)
2012
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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): 291-293 (2012)
[j10]
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Siarhei Bykau, John Mylopoulos, Flavio Rizzolo, Yannis Velegrakis:
On Modeling and Querying Concept Evolution. J. Data Semant. 1(1): 31-55 (2012)
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Themis Palpanas, Yannis Velegrakis:
dbTrento: the data and information management group at the University of Trento. SIGMOD Rec. 41(3): 28-33 (2012)
2010
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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): 429-438 (2010)
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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): 1637-1640 (2010)
2008
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Bogdan Alexe, Wang Chiew Tan, Yannis Velegrakis:
STBenchmark: towards a benchmark for mapping systems. Proc. VLDB Endow. 1(1): 230-244 (2008)
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Bogdan Alexe, Wang Chiew Tan, Yannis Velegrakis:
Comparing and evaluating mapping systems with STBenchmark. Proc. VLDB Endow. 1(2): 1468-1471 (2008)
2004
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Periklis Andritsos, Ariel Fuxman, Anastasios Kementsietsidis, Renée J. Miller, Yannis Velegrakis:
Kanata: Adaptation and Evolution in Data Sharing Systems. SIGMOD Rec. 33(4): 32-37 (2004)
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Yannis Velegrakis, Renée J. Miller, Lucian Popa:
Preserving mapping consistency under schema changes. VLDB J. 13(3): 274-293 (2004)
2002
[j2]
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Periklis Andritsos, Ronald Fagin, Ariel Fuxman, Laura M. Haas, Mauricio A. Hernández, C. T. Howard Ho, Anastasios Kementsietsidis, Renée J. Miller, Felix Naumann, Lucian Popa, Yannis Velegrakis, Charlotte Vilarem, Ling-Ling Yan:
Schema Management. IEEE Data Eng. Bull. 25(3): 32-38 (2002)
2000
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Yannis Velegrakis, Vassilis Christophides, Panos Constantopoulos:
On Z39.50 wrapping and description logics. Int. J. Digit. Libr. 3(3): 208-220 (2000)

Conference and Workshop Papers

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2025
[c70]
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Enas Khwaileh, Yannis Velegrakis:
Dataset Discovery using Semantic Matching. EDBT 2025: 649-660
[c69]
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Sihem Amer-Yahia, Jasmina Bogojeska, Roberta Facchinetti, Valeria Franceschi, Aristides Gionis, Katja Hose, Georgia Koutrika, Roger Kouyos, Matteo Lissandrini, Silviu Maniu, Katsiaryna Mirylenka, Davide Mottin, Themis Palpanas, Mattia Rigotti, Yannis Velegrakis:
Towards Reliable Conversational Data Analytics. EDBT 2025: 962-969
2024
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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: 59-78
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George Papadakis, Ekaterini Ioannou, Yannis Velegrakis:
Unveiling Dis-Integration. ICDE 2024: 5664
2023
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Vasilis Efthymiou, Ekaterini Ioannou, Manos Karvounis, Manolis Koubarakis, Jakub Maciejewski, Konstantinos Nikoletos, George Papadakis, Dimitrios Skoutas, Yannis Velegrakis, Alexandros Zeakis:
Self-configured Entity Resolution with pyJedAI. IEEE Big Data 2023: 339-343
2022
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Olaf Kampers, Abdulhakim Ali Qahtan, Swati Mathur, Yannis Velegrakis:
Manipulation detection in cryptocurrency markets: an anomaly and change detection based approach. SAC 2022: 326-329
2021
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  - conf/icde/ForoniLV21
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Daniele Foroni, Matteo Lissandrini, Yannis Velegrakis:
Estimating the extent of the effects of Data Quality through Observations. ICDE 2021: 1913-1918
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Daniele Foroni, Matteo Lissandrini, Yannis Velegrakis:
The F4U System for Understanding the Effects of Data Quality. ICDE 2021: 2717-2720
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Wessel Radstok, Mel Chekol, Yannis Velegrakis:
Leveraging Static Models for Link Prediction in Temporal Knowledge Graphs. ICTAI 2021: 1034-1041
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Giulia Preti, Polina Rozenshtein, Aristides Gionis, Yannis Velegrakis:
Discovering Dense Correlated Subgraphs in Dynamic Networks. PAKDD (1) 2021: 395-407
2020
[c60]
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Denis Gallo, Matteo Lissandrini, Yannis Velegrakis:
Personalized Page Rank on Knowledge Graphs: Particle Filtering is all you need! EDBT 2020: 447-450
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Polina Rozenshtein, Giulia Preti, Aristides Gionis, Yannis Velegrakis:
Mining Dense Subgraphs with Similar Edges. ECML/PKDD (3) 2020: 20-36
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Matteo Lissandrini, Davide Mottin, Themis Palpanas, Yannis Velegrakis:
Graph-Query Suggestions for Knowledge Graph Exploration. WWW 2020: 2549-2555
2019
[c57]
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Paolo Sottovia, Matteo Paganelli, Francesco Guerra, Yannis Velegrakis:
Finding Synonymous Attributes in Evolving Wikipedia Infoboxes. ADBIS 2019: 169-185
[c56]
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Matteo Paganelli, Paolo Sottovia, Francesco Guerra, Yannis Velegrakis:
TuneR: Fine Tuning of Rule-based Entity Matchers. CIKM 2019: 2945-2948
[c55]
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Cristian Consonni, Paolo Sottovia, Alberto Montresor, Yannis Velegrakis:
Discovering Order Dependencies through Order Compatibility. EDBT 2019: 409-420
[c54]
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Giulia Preti, Polina Rozenshtein, Aristides Gionis, Yannis Velegrakis:
ExCoDE: a Tool for Discovering and Visualizing Regions of Correlation in Dynamic Networks. ICDM Workshops 2019: 1114-1117
[c53]
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Matteo Lissandrini, Davide Mottin, Themis Palpanas, Yannis Velegrakis:
Example-based Search: a New Frontier for Exploratory Search. SIGIR 2019: 1411-1412
[c52]
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Davide Mottin, Matteo Lissandrini, Yannis Velegrakis, Themis Palpanas:
Exploring the Data Wilderness through Examples. SIGMOD Conference 2019: 2031-2035
2018
[c51]
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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: 2:1-2:10
[c50]
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Giulia Preti, Matteo Lissandrini, Davide Mottin, Yannis Velegrakis:
Beyond Frequencies: Graph Pattern Mining in Multi-weighted Graphs. EDBT 2018: 169-180
[c49]
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Dimitra Papadimitriou, Yannis Velegrakis, Georgia Koutrika:
Modeling and Exploiting Goal and Action Associations for Recommendations. EDBT 2018: 409-420
[c48]
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Matteo Lissandrini, Davide Mottin, Themis Palpanas, Yannis Velegrakis:
Multi-Example Search in Rich Information Graphs. ICDE 2018: 809-820
[c47]
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Dimitra Papadimitriou, Georgia Koutrika, Yannis Velegrakis, John Mylopoulos:
Finding Related Forum Posts through Content Similarity over Intention-Based Segmentation (Extended Abstract). ICDE 2018: 1805-1806
2017
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Francesco Guerra, Yannis Velegrakis, Jorge Cardoso, John G. Breslin:
The KEYSTONE IC1302 COST Action. International KEYSTONE Conference 2017: 187-195
[c45]
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Domenico Beneventano, Francesco Guerra, Yannis Velegrakis:
Data Exploration on Large Amount of Relational Data through Keyword Queries. HPCS 2017: 70-73
[c44]
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Siarhei Bykau, Jihwan Lee, Divesh Srivastava, Yannis Velegrakis:
"Tell me more" using Ladders in Wikipedia. WebDB 2017: 1-6
2016
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Sabeur Aridhi, Martin Brugnara, Alberto Montresor, Yannis Velegrakis:
Distributed k-core decomposition and maintenance in large dynamic graphs. DEBS 2016: 161-168
[c42]
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Sabeur Aridhi, Alberto Montresor, Yannis Velegrakis:
BLADYG: A Novel Block-Centric Framework for the Analysis of Large Dynamic Graphs. HPGP@HPDC 2016: 39-42
2015
[c41]
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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: 17-29
[c40]
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Piotr Kozikowski, Ekaterini Ioannou, Yannis Velegrakis, Francesco Guerra:
Support of Part-Whole Relations in Query Answering. International KEYSTONE Conference 2015: 94-107
[c39]
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Dimitra Papadimitriou, Yannis Velegrakis, Georgia Koutrika, John Mylopoulos:
Goals in Social Media, information retrieval and intelligent agents. ICDE 2015: 1538-1540
[c38]
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Siarhei Bykau, Flip Korn, Divesh Srivastava, Yannis Velegrakis:
Fine-grained controversy detection in Wikipedia. ICDE 2015: 1573-1584
2014
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Mehdi Haddad, Jovan Stevovic, Annamaria Chiasera, Yannis Velegrakis, Mohand-Said Hacid:
Access Control for Data Integration in Presence of Data Dependencies. DASFAA (2) 2014: 203-217
[c36]
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Alessio Guerrieri, Alberto Montresor, Yannis Velegrakis:
Top-k Item Identification on Dynamic and Distributed Datasets. Euro-Par 2014: 270-281
[c35]
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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
[c34]
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Ekaterini Ioannou, Yannis Velegrakis:
EMBench: Generating Entity-Related Benchmark Data. ISWC (Posters & Demos) 2014: 113-116
[c33]
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Davide Mottin, Matteo Lissandrini, Yannis Velegrakis, Themis Palpanas:
Searching with XQ: the exemplar query search engine. SIGMOD Conference 2014: 901-904
[c32]
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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: 1095-1098
2013
[c31]
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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: 239-246
[c30]
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Siarhei Bykau, Flavio Rizzolo, Yannis Velegrakis:
A query answering system for data with evolution relationships. SIGMOD Conference 2013: 989-992
2012
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Oktie Hassanzadeh, Anastasios Kementsietsidis, Yannis Velegrakis:
Data Management Issues on the Semantic Web. ICDE 2012: 1204-1206
2011
[c28]
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Siarhei Bykau, John Mylopoulos, Flavio Rizzolo, Yannis Velegrakis:
Supporting queries spanning across phases of evolving artifacts using Steiner forests. CIKM 2011: 1649-1658
[c27]
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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: 34-35
[c26]
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  - conf/edbt/BonifatiV11
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Angela Bonifati, Yannis Velegrakis:
Schema matching and mapping: from usage to evaluation. EDBT 2011: 527-529
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  - conf/er/BergamaschiGRV11a
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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: 328-331
[c24]
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Sonia Bergamaschi, Francesco Guerra, Silvia Rota, Yannis Velegrakis:
A Hidden Markov Model Approach to Keyword-Based Search over Relational Databases. ER 2011: 411-420
[c23]
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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: 465-468
[c22]
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Sonia Bergamaschi, Elton Domnori, Francesco Guerra, Raquel Trillo Lado, Yannis Velegrakis:
Keyword-based Search in Data Integration Systems. SEBD 2011: 103-
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Sonia Bergamaschi, Elton Domnori, Francesco Guerra, Raquel Trillo Lado, Yannis Velegrakis:
Keyword search over relational databases: a metadata approach. SIGMOD Conference 2011: 565-576
[c20]
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Ekaterini Ioannou, Wolfgang Nejdl, Claudia Niederée, Yannis Velegrakis:
LinkDB: a probabilistic linkage database system. SIGMOD Conference 2011: 1307-1310
2010
[c19]
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  - conf/dexaw/BykauKTV10
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Siarhei Bykau, Nadzeya Kiyavitskaya, Chrisa Tsinaraki, Yannis Velegrakis:
Bridging the Gap between Heterogeneous and Semantically Diverse Content of Different Disciplines. DEXA Workshops 2010: 305-309
[c18]
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Chrisa Tsinaraki, Yannis Velegrakis, Nadzeya Kiyavitskaya, John Mylopoulos:
A Context-Based Model for the Interpretation of Polysemous Terms. OTM Conferences (2) 2010: 939-956
[c17]
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Ekaterini Ioannou, Claudia Niederée, Yannis Velegrakis:
Enabling entity-based aggregators for web 2.0 data. WWW 2010: 1119-1120
2009
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  - conf/birthday/FaginHHMPV09
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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: 198-236
[c15]
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  - conf/er/PresaVRB09
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Andrea Presa, Yannis Velegrakis, Flavio Rizzolo, Siarhei Bykau:
Modeling Associations through Intensional Attributes. ER 2009: 315-330
[c14]
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Flavio Rizzolo, Yannis Velegrakis, John Mylopoulos, Siarhei Bykau:
Modeling Concept Evolution: A Historical Perspective. ER 2009: 331-345
2008
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Themis Palpanas, Junaid Ahsenali Chaudhry, Periklis Andritsos, Yannis Velegrakis:
Entity Data Management in OKKAM. DEXA Workshops 2008: 729-733
[c12]
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  - conf/sdmw/ChiaseraCDV08
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Annamaria Chiasera, Fabio Casati, Florian Daniel, Yannis Velegrakis:
Engineering Privacy Requirements in Business Intelligence Applications. Secure Data Management 2008: 219-228
[c11]
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Alexis Morris, Yannis Velegrakis, Paolo Bouquet:
Entity Identification on the Semantic Web. SWAP 2008
2007
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  - conf/icde/SrivastavaV07
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Divesh Srivastava, Yannis Velegrakis:
Using Queries to Associate Metadata with Data. ICDE 2007: 1451-1453
[c9]
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  - conf/icde/SrivastavaV07a
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Divesh Srivastava, Yannis Velegrakis:
MMS: Using Queries As Data Values for Metadata Management. ICDE 2007: 1481-1482
[c8]
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Divesh Srivastava, Yannis Velegrakis:
Intensional associations between data and metadata. SIGMOD Conference 2007: 401-412
2006
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  - conf/icde/KotidisSV06
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Yannis Kotidis, Divesh Srivastava, Yannis Velegrakis:
Updates Through Views: A New Hope. ICDE 2006: 2
2005
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Yannis Velegrakis, Renée J. Miller, John Mylopoulos:
Representing and Querying Data Transformations. ICDE 2005: 81-92
2004
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Yannis Velegrakis, Renée J. Miller, Lucian Popa, John Mylopoulos:
ToMAS: A System for Adapting Mappings while Schemas Evolve. ICDE 2004: 862
2003
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Yannis Velegrakis, Renée J. Miller, Lucian Popa:
Mapping Adaptation under Evolving Schemas. VLDB 2003: 584-595
2002
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Mauricio A. Hernández, Lucian Popa, Yannis Velegrakis, Renée J. Miller, Felix Naumann, Ching-Tien Ho:
Mapping XML and Relational Schemas with Clio. ICDE 2002: 498-499
[c2]
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Lucian Popa, Yannis Velegrakis, Renée J. Miller, Mauricio A. Hernández, Ronald Fagin:
Translating Web Data. VLDB 2002: 598-609
1999
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Yannis Velegrakis, Vassilis Christophides, Panos Constantopoulos:
Declarative Specification of Z39.50 Wrappers Using Description Logics. ECDL 1999: 383-402

Parts in Books or Collections

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2012
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Sonia Bergamaschi, Elton Domnori, Francesco Guerra, Silvia Rota, Raquel Trillo Lado, Yannis Velegrakis:
Understanding the Semantics of Keyword Queries on Relational Data Without Accessing the Instance. Semantic Search over the Web 2012: 131-158
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Ekaterini Ioannou, Wolfgang Nejdl, Claudia Niederée, Yannis Velegrakis:
Embracing Uncertainty in Entity Linking. Semantic Search over the Web 2012: 225-253
2011
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Angela Bonifati, Giansalvatore Mecca, Paolo Papotti, Yannis Velegrakis:
Discovery and Correctness of Schema Mapping Transformations. Schema Matching and Mapping 2011: 111-147
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Zohra Bellahsene, Angela Bonifati, Fabien Duchateau, Yannis Velegrakis:
On Evaluating Schema Matching and Mapping. Schema Matching and Mapping 2011: 253-291
2009
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Yannis Velegrakis:
Relational Technologies, Metadata and RDF. Semantic Web Information Management 2009: 41-66

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2021
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Yannis Velegrakis, Demetris Zeinalipour-Yazti, Panos K. Chrysanthis, Francesco Guerra:
Proceedings of the 24th International Conference on Extending Database Technology, EDBT 2021, Nicosia, Cyprus, March 23 - 26, 2021. OpenProceedings.org 2021, ISBN 978-3-89318-084-4 [contents]
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Davide Mottin, Matteo Lissandrini, Senjuti Basu Roy, Yannis Velegrakis:
Proceedings of the 2nd Workshop on Search, Exploration, and Analysis in Heterogeneous Datastores (SEA-Data 2021) co-located with 47th International Conference on Very Large Data Bases (VLDB 2021), Copenhagen, Denmark, August 20, 2021. CEUR Workshop Proceedings 2929, CEUR-WS.org 2021 [contents]
2020
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Alexandra Poulovassilis, David Auber, Nikos Bikakis, Panos K. Chrysanthis, George Papastefanatos, Mohamed A. Sharaf, Nikos Pelekis, Chiara Renso, Yannis Theodoridis, Karine Zeitouni, Tania Cerquitelli, Silvia Chiusano, Genoveva Vargas-Solar, Behrooz Omidvar-Tehrani, Katharina Morik, Jean-Michel Renders, Donatella Firmani, Letizia Tanca, Davide Mottin, Matteo Lissandrini, Yannis Velegrakis:
Proceedings of the Workshops of the EDBT/ICDT 2020 Joint Conference, Copenhagen, Denmark, March 30, 2020. CEUR Workshop Proceedings 2578, CEUR-WS.org 2020 [contents]
2018
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Julian Szymanski, Yannis Velegrakis:
Semantic Keyword-Based Search on Structured Data Sources - Third International KEYSTONE Conference, IKC 2017, Gdańsk, Poland, September 11-12, 2017, Revised Selected Papers and COST Action IC1302 Reports. Lecture Notes in Computer Science 10546, Springer 2018, ISBN 978-3-319-74496-4 [contents]
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Melanie Herschel, Yannis Velegrakis:
Proceedings of the 5th International Workshop on Exploratory Search in Databases and the Web, ExploreDB 2018, Houston, TX, USA, June 15, 2018. ACM 2018, ISBN 978-1-4503-5847-7 [contents]
2017
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Mohamed A. Sharaf, Yannis Velegrakis:
Proceedings of the ExploreDB'17, Chicago, IL, USA, May 19, 2017. ACM 2017, ISBN 978-1-4503-4674-0 [contents]
2015
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Jorge Cardoso, Francesco Guerra, Geert-Jan Houben, Alexandre Miguel Pinto, Yannis Velegrakis:
Semantic Keyword-Based Search on Structured Data Sources - First COST Action IC1302 International KEYSTONE Conference, IKC 2015, Coimbra, Portugal, September 8-9, 2015. Revised Selected Papers. Lecture Notes in Computer Science 9398, Springer 2015, ISBN 978-3-319-27931-2 [contents]
2014
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Paulo Rupino da Cunha, Ngoc Thanh Nguyen, Omar Boucelma, Bogdan Cautis, Yannis Velegrakis:
Proceedings of the Workshop on Surfacing the Deep and the Social Web co-located with the 13th International Semantic Web Conference (ISWC 2014), Riva del Garda, Trentino, Italy, October 19, 2014. CEUR Workshop Proceedings 1310, CEUR-WS.org 2014 [contents]
2012
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Roberto De Virgilio, Francesco Guerra, Yannis Velegrakis:
Semantic Search over the Web. Data-Centric Systems and Applications, Springer 2012, ISBN 978-3-642-25007-1 [contents]
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Zachary G. Ives, Yannis Velegrakis:
Proceedings of the 15th International Workshop on the Web and Databases 2012, WebDB 2012, Scottsdale, AZ, USA, May 20, 2012. 2012 [contents]
2011
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Timos K. Sellis, Renée J. Miller, Anastasios Kementsietsidis, Yannis Velegrakis:
Proceedings of the ACM SIGMOD International Conference on Management of Data, SIGMOD 2011, Athens, Greece, June 12-16, 2011. ACM 2011, ISBN 978-1-4503-0661-4 [contents]
2008
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Hamid R. Motahari Nezhad, Farouk Toumani, Yannis Velegrakis:
Proceedings of the PhD Symposium at the 6th International Conference on Service Oriented Computing (ICSOC 2008), Sydney, Australia, 1 December 2008. CEUR Workshop Proceedings 421, CEUR-WS.org 2008 [contents]

Reference Works

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2018
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Yannis Velegrakis:
Side-Effect-Free View Updates. Encyclopedia of Database Systems (2nd ed.) 2018
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Yannis Velegrakis:
Updates Through Views. Encyclopedia of Database Systems (2nd ed.) 2018
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Kostas Stefanidis, Eirini Ntoutsi, Haridimos Kondylakis, Yannis Velegrakis:
Social-Based Collaborative Filtering. Encyclopedia of Social Network Analysis and Mining. 2nd Ed. 2018
2009
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Yannis Velegrakis:
Side-Effect-Free View Updates. Encyclopedia of Database Systems 2009: 2639-2642
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Yannis Velegrakis:
Updates through Views. Encyclopedia of Database Systems 2009: 3244-3247

Data and Artifacts

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2016
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Davide Mottin, Matteo Lissandrini, Yannis Velegrakis, Themis Palpanas:
Freebase Snapshot for the paper: Exemplar Queries: A New Way of Searching. Zenodo, 2016

Informal and Other Publications

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2025
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Jakub Maciejewski, Konstantinos Nikoletos, George Papadakis, Yannis Velegrakis:
Progressive Entity Resolution: A Design Space Exploration. CoRR abs/2503.08298 (2025)
[i6]
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Nicola Giuseppe Marchioro, Yannis Velegrakis, Valentine Anantharaj, Ian T. Foster, Sandro Fiore:
Trustworthy Provenance for Big Data Science: a Modular Architecture Leveraging Blockchain in Federated Settings. CoRR abs/2505.24675 (2025)
2023
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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 abs/2306.05302 (2023)
[i4]
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Duygu Sezen Islakoglu, Mel Chekol, Yannis Velegrakis:
Leveraging Pre-trained Language Models for Time Interval Prediction in Text-Enhanced Temporal Knowledge Graphs. CoRR abs/2309.16357 (2023)
2021
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Giulia Preti, Polina Rozenshtein, Aristides Gionis, Yannis Velegrakis:
Discovering Dense Correlated Subgraphs in Dynamic Networks. CoRR abs/2103.00451 (2021)
2020
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Polina Rozenshtein, Giulia Preti, Aristides Gionis, Yannis Velegrakis:
Mining Dense Subgraphs with Similar Edges. CoRR abs/2007.03950 (2020)
2017
[i1]
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Sabeur Aridhi, Alberto Montresor, Yannis Velegrakis:
BLADYG: A Graph Processing Framework for Large Dynamic Graphs. CoRR abs/1701.00546 (2017)

Coauthor Index

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