George Papastefanatos

Publication Activity (10 Years)

Years Active: 2005-2025
Publications (10 Years): 54

Top Topics

Query Optimization

Entity Resolution

Top Venues

Proc. VLDB Endow.

Publications

Giorgos Alexiou, George Papastefanatos, Vassilis Stamatopoulos, Georgia Koutrika, Nectarios Koziris
QueryER: A Framework for Fast Analysis-Aware Deduplication over Dirty Data. EDBT (2025)
Stavros Maroulis, Nikos Bikakis, Vassilis Stamatopoulos, George Papastefanatos
Partial Adaptive Indexing for Approximate Query Answering. CoRR (2024)
David Auber, Nikos Bikakis, Panos K. Chrysanthis, George Papastefanatos, Mohamed A. Sharaf
Interactive big data visualization and analytics. Big Data Res. 36 (2024)
Angelos Pentelas, Dimitris Katsiros, Dimitra Paranou, George Doukas, Konstantinos Chondralis, Giorgos Giannopoulos, Evangelos Angelou, George Papastefanatos
Dynamic Sizing of Cloud-Native Telco Data Centers With Digital Twin and Reinforcement Learning. IEEE Access 12 (2024)
Stavros Maroulis, Vassilis Stamatopoulos, George Papastefanatos, Manolis Terrovitis
Visualization-aware Time Series Min-Max Caching with Error Bound Guarantees. Proc. VLDB Endow. 17 (8) (2024)
Nikos Bikakis, George Papastefanatos, Panos K. Chrysanthis, Olga Papemmanuil, David Auber, Steffen Frey, Issei Fujishiro, Hanna Hauptmann, Shixia Liu, Kwan-Liu Ma, Tobias Schreck, Michael Sedlmair, Mohamed A. Sharaf
Visualizing, Exploring and Analyzing Big Data: A 6-Year Story. SIGMOD Rec. 53 (2) (2024)
Dimitris Sacharidis, Giorgos Giannopoulos, George Papastefanatos, Kostas Stefanidis
Auditing for Spatial Fairness. CoRR (2023)
Dimitra Paranou, Angelos Pentelas, Dimitris Katsiros, Konstantinos Maidatsis, George Giannopoulos, Evangelos Angelou, Nikos Anastopoulos, George Papastefanatos
Forecasting Resource Demand for Dynamic Datacenter Sizing in Telco Infrastructures. BigData (2023)
Dimitris Sacharidis, Giorgos Giannopoulos, George Papastefanatos, Kostas Stefanidis
Auditing for Spatial Fairness. EDBT (2023)
Vassilis Stamatopoulos, Stavros Maroulis, Konstantinos Kozanis, Ioannis Psarros, George Papastefanatos, Giorgos Giannopoulos, Manolis Terrovitis
A Tool for Visual Exploration and Analysis of Solar Photovoltaic Module Data. EDBT/ICDT Workshops (2023)
Alexandros Kalimeris, Ioannis Psarros, Giorgos Giannopoulos, Manolis Terrovitis, George Papastefanatos, Gregory Kotsis
Data-driven soiling detection in PV modules. CoRR (2023)
Stavros Maroulis, Nikos Bikakis, George Papastefanatos, Panos Vassiliadis, Yannis Vassiliou
Resource-aware adaptive indexing for in situ visual exploration and analytics. VLDB J. 32 (1) (2023)
Adam Przybylek, Aleksandra Karpus, Allel Hadjali, Anton Dignös, Carmem S. Hara, Danae Pla Karidi, Ester Zumpano, Fabio Persia, Genoveva Vargas-Solar, George Papastefanatos, Giancarlo Sperlì, Giorgos Giannopoulos, Ivan Lukovic, Julien Aligon, Manolis Terrovitis, Marek Grzegorowski, Mariella Bonomo, Mirian Halfeld Ferrari Alves, Nicolas Labroche, Paul Monsarrat, Richard Chbeir, Sana Sellami, Seshu Tirupathi, Simona E. Rombo, Slavica Kordic, Sonja Ristic, Tommaso Di Noia, Torben Bach Pedersen, Vincenzo Moscato
Databases and Information Systems: Contributions from ADBIS 2023 Workshops and Doctoral Consortium. ADBIS (Short Papers) (2023)
Giorgos Alexiou, George Papastefanatos, Vassilis Stamatopoulos, Georgia Koutrika, Nectarios Koziris
QueryER: A Framework for Fast Analysis-Aware Deduplication over Dirty Data. CoRR (2022)
George Papastefanatos, Giorgos Alexiou, Nikos Bikakis, Stavros Maroulis, Vassilis Stamatopoulos
VisualFacts: A Platform for In-Situ Visual Exploration and Real-Time Entity Resolution. EDBT/ICDT Workshops (2022)
George Papastefanatos, Marios Meimaris, Panos Vassiliadis
Relational schema optimization for RDF-based knowledge graphs. Inf. Syst. 104 (2022)
Seshu Tirupathi, Dhaval Salwala, Giulio Zizzo, Ambrish Rawat, Mark Purcell, Søren Kejser Jensen, Christian Thomsen, Nguyen Ho, Carlos E. Muñiz-Cuza, Jonas Brusokas, Torben Bach Pedersen, Giorgos Alexiou, Giorgos Giannopoulos, Panagiotis Gidarakos, Alexandros Kalimeris, Stavros Maroulis, George Papastefanatos, Ioannis Psarros, Vassilis Stamatopoulos, Manolis Terrovitis
Machine Learning Platform for Extreme Scale Computing on Compressed IoT Data. Big Data (2022)
Nikos Bikakis, Panos K. Chrysanthis, George Papastefanatos, Tobias Schreck
Special Issue on Machine Learning Approaches in Big Data Visualization. IEEE Computer Graphics and Applications 42 (3) (2022)
Giorgos Giannopoulos, George Papastefanatos, Dimitris Sacharidis, Kostas Stefanidis
Interactivity, Fairness and Explanations in Recommendations. UMAP (Adjunct Publication) (2021)
Petros Galanis, Olympia Konstantakopoulou, Iliana Karagkouni, Parisis Gallos, Evangelos Tsampalas, Maria Lypiridou, Anastasia Gamvroula, Georgios Mavraganis, Efstathios Manios, George Ntaios, Efstathia Karagkiozi, Haralampos J. Milionis, Chara Evangelou, Argyro Tountopoulou, Ioanna Kouzi, Sofia Vassilopoulou, Athanasios Protogerou, Stamatina Samara, Asteria Karapiperi, Christos Savopoulos, Apostolos I. Hatzitolios, Athina Myrou, Ioannis Kalliontzakis, Aspasia Kouridaki, Stefanos Papastefanatos, George Papastefanatos, Kostas Vemmos, Panayiota Sourtzi, Thalia Bellali, Eleni Korompoki, Daphne Kaitelidou, Olga Siskou
Assessing Staff's and Stroke Patients' Experiences in 8 Hospitals in Greece: Results from a Prospective Multi-Center Study ("SUN4Patients"). ICIMTH (2021)
Stavros Maroulis, Nikos Bikakis, George Papastefanatos, Panos Vassiliadis, Yannis Vassiliou
Adaptive Indexing for In-situ Visual Exploration and Analytics. DOLAP (2021)
Stavros Maroulis, Nikos Bikakis, George Papastefanatos, Panos Vassiliadis, Yannis Vassiliou
RawVis: A System for Efficient In-situ Visual Analytics. SIGMOD Conference (2021)
Nikos Bikakis, Stavros Maroulis, George Papastefanatos, Panos Vassiliadis
In-situ visual exploration over big raw data. Inf. Syst. 95 (2021)
Theodora Galani, George Papastefanatos, Yannis Stavrakas, Yannis Vassiliou
Defining and Detecting Complex Changes on RDF(S) Knowledge Bases. J. Data Semant. 10 (3-4) (2021)
Theodora Galani, Yannis Stavrakas, George Papastefanatos, Yannis Vassiliou
Evo-Path: Querying Data Evolution through Complex Changes. DATA (2021)
Giorgos Alexiou, Marios Meimaris, George Papastefanatos, Ioannis Anagnostopoulos
LinkZoo: A Collaborative Resource Management Tool Based on Linked Data. Int. J. Semantic Web Inf. Syst. 16 (3) (2020)
George Papastefanatos, Elli Papadopoulou, Marios Meimaris, Antonis Lempesis, Stefania Martziou, Paolo Manghi, Natalia Manola
Open Science Observatory: Monitoring Open Science in Europe. ADBIS/TPDL/EDA Workshops (2020)
Gennady L. Andrienko, Natalia V. Andrienko, Steven Mark Drucker, Jean-Daniel Fekete, Danyel Fisher, Stratos Idreos, Tim Kraska, Guoliang Li, Kwan-Liu Ma, Jock D. Mackinlay, Antti Oulasvirta, Tobias Schreck, Heidrun Schumann, Michael Stonebraker, David Auber, Nikos Bikakis, Panos K. Chrysanthis, George Papastefanatos, Mohamed A. Sharaf
Big Data Visualization and Analytics: Future Research Challenges and Emerging Applications. EDBT/ICDT Workshops (2020)
Federico Desimoni, Nikos Bikakis, Laura Po, George Papastefanatos
A Comparative Study of State-of-The-Art Linked Data Visualization Tools. VOILA@ISWC (2020)
Marios Meimaris, George Papastefanatos, Panos Vassiliadis
Hierarchical Property Set Merging for SPARQL Query Optimization. DOLAP (2020)
Nikos Bikakis, George Papastefanatos, Olga Papaemmanouil
Big Data Exploration, Visualization and Analytics. Big Data Res. 18 (2019)
Giorgos Alexiou, George Papastefanatos
Query Driven Entity Resolution in Data Lakes. ISIP (2019)
Marios Koniaris, George Papastefanatos, Ioannis Anagnostopoulos
Solon: A Holistic Approach for Modelling, Managing and Mining Legal Sources. Algorithms 11 (12) (2018)
Nikos Bikakis, Stavros Maroulis, George Papastefanatos, Panos Vassiliadis
RawVis: Visual Exploration over Raw Data. ADBIS (2018)
Marios Meimaris, George Papastefanatos, Panos Vassiliadis, Ioannis Anagnostopoulos
Computational methods and optimizations for containment and complementarity in web data cubes. Inf. Syst. 75 (2018)
Marios Meimaris, George Papastefanatos
Hierarchical Characteristic Set Merging for Optimizing SPARQL Queries in Heterogeneous RDF. CoRR (2018)
Vasilis Efthymiou, George Papadakis, George Papastefanatos, Kostas Stefanidis, Themis Palpanas
Parallel meta-blocking for scaling entity resolution over big heterogeneous data. Inf. Syst. 65 (2017)
Marios Meimaris, George Papastefanatos, Nikos Mamoulis, Ioannis Anagnostopoulos
Extended Characteristic Sets: Graph Indexing for SPARQL Query Optimization. ICDE (2017)
Marios Meimaris, George Papastefanatos
Distance-Based Triple Reordering for SPARQL Query Optimization. ICDE (2017)
Nikos Bikakis, George Papastefanatos, Melina Skourla, Timos Sellis
A hierarchical aggregation framework for efficient multilevel visual exploration and analysis. Semantic Web 8 (1) (2017)
Petros Manousis, Apostolos V. Zarras, Panos Vassiliadis, George Papastefanatos
Extraction of Embedded Queries via Static Analysis of Host Code. CAiSE (2017)
Marios Koniaris, George Papastefanatos, Marios Meimaris, Giorgos Alexiou
Introducing Solon: A Semantic Platform for Managing Legal Sources. TPDL (2017)
Nikos Bikakis, John Liagouris, Maria Krommyda, George Papastefanatos, Timos K. Sellis
graphVizdb: A Scalable Platform for Interactive Large Graph Visualization. CoRR (2016)
Theodora Galani, George Papastefanatos, Yannis Stavrakas
A Language for Defining and Detecting Interrelated Complex Changes on RDF(S) Knowledge Bases. ICEIS (1) (2016)
Konstantina Papanikolaou, Haris Papageorgiou, Nikos Papasarantopoulos, Theoni Stathopoulou, George Papastefanatos
"Just the Facts" with PALOMAR: Detecting Protest Events in Media Outlets and Twitter. SMN@ICWSM (2016)
Marios Meimaris, George Papastefanatos
The EvoGen Benchmark Suite for Evolving RDF Data. MEPDaW/LDQ@ESWC (2016)
George Papadakis, George Papastefanatos, Themis Palpanas, Manolis Koubarakis
Boosting the Efficiency of Large-Scale Entity Resolution with Enhanced Meta-Blocking. Big Data Res. 6 (2016)
Marios Meimaris, George Papastefanatos, Panos Vassiliadis, Ioannis Anagnostopoulos
Efficient Computation of Containment and Complementarity in RDF Data Cubes. EDBT (2016)
George Papadakis, George Papastefanatos, Themis Palpanas, Manolis Koubarakis
Scaling Entity Resolution to Large, Heterogeneous Data with Enhanced Meta-blocking. EDBT (2016)
Marios Meimaris, George Papastefanatos, Stratis Viglas, Yannis Stavrakas, Christos Pateritsas, Ioannis Anagnostopoulos
A query language for multi-version data web archives. Expert Syst. J. Knowl. Eng. 33 (4) (2016)
Marios Koniaris, George Papastefanatos, Yannis Vassiliou
Towards Automatic Structuring and Semantic Indexing of Legal Documents. PCI (2016)
Nikos Bikakis, John Liagouris, Maria Krommyda, George Papastefanatos, Timos K. Sellis
graphVizdb: A scalable platform for interactive large graph visualization. ICDE (2016)
Marios Meimaris, George Papastefanatos
Double Chain-Star: an RDF indexing scheme for fast processing of SPARQL joins. EDBT (2016)
Giorgos Alexiou, Marios Meimaris, George Papastefanatos
Enabling persistent identification of groups of duplicates in data aggregators. ICDE Workshops (2016)
George Papadakis, George Alexiou, George Papastefanatos, Georgia Koutrika
Schema-agnostic vs Schema-based Configurations for Blocking Methods on Homogeneous Data. Proc. VLDB Endow. 9 (4) (2015)
Nikos Bikakis, George Papastefanatos, Melina Skourla, Timos K. Sellis
A Hierarchical Framework for Efficient Multilevel Visual Exploration and Analysis. CoRR (2015)
Katerina Gkirtzou, George Papastefanatos, Theodore Dalamagas
RDF Keyword Search based on Keywords-To-SPARQL Translation. NWSearch@CIKM (2015)
Marios Meimaris, George Papastefanatos, Christos Pateritsas
An Archiving System for Managing Evolution in the Data Web. DIACRON@ESWC (2015)
Marios Meimaris, George Papastefanatos, Stratis Viglas, Yannis Stavrakas, Christos Pateritsas
A Query Language for Multi-version Data Web Archives. CoRR (2015)
Marios Meimaris, George Papastefanatos, Christos Pateritsas, Theodora Galani, Yannis Stavrakas
A Framework for Managing Evolving Information Resources on the Data Web. CoRR (2015)
Marios Meimaris, George Alexiou, Katerina Gkirtzou, George Papastefanatos, Theodore Dalamagas
RDF Resource Search and Exploration with LinkZoo. DATA (2015)
Petros Manousis, Panos Vassiliadis, Apostolos V. Zarras, George Papastefanatos
Schema Evolution for Databases and Data Warehouses. eBISS (2015)
Petros Manousis, Panos Vassiliadis, George Papastefanatos
Impact Analysis and Policy-Conforming Rewriting of Evolving Data-Intensive Ecosystems. J. Data Semant. 4 (4) (2015)
Nikos Bikakis, John Liagouris, Maria Kromida, George Papastefanatos, Timos K. Sellis
Towards Scalable Visual Exploration of Very Large RDF Graphs. ESWC (Satellite Events) (2015)
Vasilis Efthymiou, George Papadakis, George Papastefanatos, Kostas Stefanidis, Themis Palpanas
Parallel meta-blocking: Realizing scalable entity resolution over large, heterogeneous data. IEEE BigData (2015)
Nikos Bikakis, John Liagouris, Maria Krommyda, George Papastefanatos, Timos K. Sellis
Towards Scalable Visual Exploration of Very Large RDF Graphs. CoRR (2015)
Theodora Galani, Yannis Stavrakas, George Papastefanatos, Giorgos Flouris
Supporting Complex Changes in RDF(S) Knowledge Bases. DIACRON@ESWC (2015)
George Papadakis, George Papastefanatos, Georgia Koutrika
Supervised Meta-blocking. Proc. VLDB Endow. 7 (14) (2014)
George Papastefanatos, Yannis Stavrakas
Diachronic Linked Data: Capturing the Evolution of Structured Interrelated Information on the Web. ERCIM News 2014 (96) (2014)
Marios Meimaris, George Alexiou, George Papastefanatos
LinkZoo: A Linked Data Platform for Collaborative Management of Heterogeneous Resources. ESWC (Satellite Events) (2014)
Eli Katsiri, George Papastefanatos, Manolis Terrovitis, Timos K. Sellis
Airport Context Analytics. RR (2014)
Nikos Bikakis, Melina Skourla, George Papastefanatos
rdf: SynopsViz - A Framework for Hierarchical Linked Data Visual Exploration and Analysis. CoRR (2014)
Marios Meimaris, George Papastefanatos
Containment and Complementarity Relationships in Multidimensional Linked Open Data. SemStats@ISWC (2014)
Marios Meimaris, George Papastefanatos, Christos Pateritsas, Theodora Galani, Yannis Stavrakas
Towards a Framework for Managing Evolving Information Resources on the Data Web. PROFILES@ESWC (2014)
Irene Petrou, George Papastefanatos
Publishing Greek Census Data as Linked Open Data. ERCIM News 2014 (96) (2014)
Nikos Bikakis, Melina Skourla, George Papastefanatos
rdf: SynopsViz - A Framework for Hierarchical Linked Data Visual Exploration and Analysis. ESWC (Satellite Events) (2014)
George Papastefanatos
Challenges and Opportunities in the Evolving Data Web. ER Workshops (2013)
Irene Petrou, George Papastefanatos, Theodore Dalamagas
Publishing census as linked open data: a case study. WOD (2013)
Petros Manousis, Panos Vassiliadis, George Papastefanatos
Automating the Adaptation of Evolving Data-Intensive Ecosystems. ER (2013)
Theodore Dalamagas, Nikos Bikakis, George Papastefanatos, Yannis Stavrakas, Artemis G. Hatzigeorgiou
Publishing life science data as linked open data: the case study of miRBase. WOD (2012)
Yannis Stavrakas, George Papastefanatos, Theodore Dalamagas, Vassilis Christophides
Diachronic Linked Data: Towards Long-Term Preservation of Structured Interrelated Information CoRR (2012)
Theodore Dalamagas, Nikos Bikakis, George Papastefanatos, Yannis Stavrakas, Artemis G. Hatzigeorgiou
Publishing Life Science Data as Linked Open Data: the Case Study of miRBase CoRR (2012)
George Papastefanatos, Panos Vassiliadis, Alkis Simitsis, Yannis Vassiliou
Metrics for the Prediction of Evolution Impact in ETL Ecosystems: A Case Study. J. Data Semant. 1 (2) (2012)
Sören Auer, Theodore Dalamagas, Helen E. Parkinson, François Bancilhon, Giorgos Flouris, Dimitris Sacharidis, Peter Buneman, Dimitris Kotzinos, Yannis Stavrakas, Vassilis Christophides, George Papastefanatos, Kostas Thiveos
Diachronic linked data: towards long-term preservation of structured interrelated information. WOD (2012)
Yannis Stavrakas, George Papastefanatos
Using structured changes for elucidating data evolution. ICDE Workshops (2011)
George Papastefanatos, Panos Vassiliadis, Alkis Simitsis
Propagating evolution events in data-centric software artifacts. ICDE Workshops (2011)
George Papastefanatos, Panos Vassiliadis, Alkis Simitsis, Yannis Vassiliou
HECATAEUS: Regulating schema evolution. ICDE (2010)
Yannis Stavrakas, George Papastefanatos
Supporting Complex Changes in Evolving Interrelated Web Databanks. OTM Conferences (1) (2010)
George Papastefanatos, Panos Vassiliadis, Alkis Simitsis, Yannis Vassiliou
Policy-Regulated Management of ETL Evolution. J. Data Semant. 13 (2009)
George Papastefanatos, Panos Vassiliadis, Alkis Simitsis, Timos K. Sellis, Yannis Vassiliou
Rule-Based Management of Schema Changes at ETL Sources. ADBIS (Workshops) (2009)
George Papastefanatos, Panos Vassiliadis, Alkis Simitsis, Konstantinos Aggistalis, Fotini Pechlivani, Yannis Vassiliou
Language Extensions for the Automation of Database Schema Evolution. ICEIS (1) (2008)
George Papastefanatos, Panos Vassiliadis, Alkis Simitsis, Yannis Vassiliou
Design Metrics for Data Warehouse Evolution. ER (2008)
George Papastefanatos, Fotini Anagnostou, Yannis Vassiliou, Panos Vassiliadis
Hecataeus: A What-If Analysis Tool for Database Schema Evolution. CSMR (2008)
George Papastefanatos, Panos Vassiliadis, Alkis Simitsis, Yannis Vassiliou
What-If Analysis for Data Warehouse Evolution. DaWaK (2007)
George Papastefanatos, Panos Vassiliadis, Yannis Vassiliou
Adaptive Query Formulation to Handle Database Evolution. CAiSE Forum (2006)
George Papastefanatos, Kostis Kyzirakos, Panos Vassiliadis, Yannis Vassiliou
Hecataeus: A Framework for Representing SQL Constructs as Graphs. EMMSAD (2005)