Organization

• VLDB 2027: International Conference on Very Large Data Bases, Athens, Greece, 2027.

  GENERAL CO-CHAIR
• IEEE ICDE 2026: IEEE International Conference on Data Engineering, Montréal, Canada - May 4-8, 2026.

  PC CO-CHAIR
• EDBT 2025: International Conference on Extending Database Technology, Barcelona, Spain, March 25-28, 2025.

  PC CO-CHAIR
• HDMS 2024: Hellenic Data Management Symposium, Athens, Greece, July 1-2, 2024.

  GENERAL CO-CHAIR
• EDBT/ICDT 2024: EDBT/ICDT Joint Conference, Paestum, Italy, March 25-28, 2024.

  SPONSORSHIPS CHAIR
• IEEE ICDE 2021: IEEE International Conference on Data Engineering, Chania, Greece, April 19, 2021.

  REGISTRATION CHAIR
• IEEE ICDE 2016 (PhD Symp.): IEEE ICDE PhD Symposium, Helsinki, Finland, May 16-20, 2016.

  PC CO-CHAIR
• DOLAP 2014: ACM International Workshop on Data Warehousing and OLAP, Shanghai, China, November 3, 2014.

  PC CO-CHAIR
• ER 2011 (Industrial): International Conference on Conceptual Modeling, Brussels, Belgium, 31 October 31 - 3 November, 2011.

  PC CO-CHAIR
• BIRTE 2008: International Workshop on Business Intelligence for the Real Time Enterprise, Auckland, New Zealand, 24 August, 2008.

  PUBLICITY CHAIR

Editorial

• PVLDB: Proceedings of the VLDB Endowment, Volume 19, 2025 - 2026.

  ASSOCIATE EDITOR
• PVLDB: Proceedings of the VLDB Endowment, Volume 18, 2024 - 2025.

  ASSOCIATE EDITOR
• PVLDB: Proceedings of the VLDB Endowment, Volume 16, 2022 - 2023.

  ASSOCIATE EDITOR
• ACM/IMS JDS: ACM/IMS Journal of Data Science, since July 2022.

  ASSOCIATE EDITOR
• IEEE TKDE: IEEE Transactions on Knowledge and Data Engineering, since September 2025.

  ASSOCIATE EDITOR
• The VLDB Journal: The International Journal on Very Large Data Bases, since March 2025.

  REVIEW BOARD
• DKE/DATAK: Data & Knowledge Engineering, Elsevier, since April 2018.

  EDITORIAL BOARD
• Inf. Syst.: Information Systems, Elsevier, Special issue on “Big Data Management: New Frontiers, New Paradigms”, volume 63, 2017.

  CO-EDITOR
• ACM Sig. Rec.: ACM SIGMOD Record, Research Center Column, July 2012 - June 2019.

  ASSOCIATE EDITOR

Steering Committee

• ACM DOLAP: ACM International Workshop on Data Warehousing and OLAP, since 2015.

Program Committee

• 2027
  • ACM SIGMOD 2027: ACM SIGMOD International Conference on Management of Data, Huntington Beach, CA, USA, June 13-19, 2027.

    ASSOCIATE EDITOR
  • IEEE ICDE 2027: IEEE International Conference on Data Engineering, Copenhagen, Denmark, May 17-21, 2027.

    AREA CHAIR
• 2026
  • ACM SIGMOD 2026: ACM SIGMOD International Conference on Management of Data, Bengaluru, India, May 31 - June 05, 2026.

    ASSOCIATE EDITOR
  • VLDB 2026: International Conference on Very Large Data Bases, Boston, MA, USA, August 31 - September 4, 2026.

    ASSOCIATE EDITOR
  • IEEE ICSC 2026: IEEE International Conference on Semantic Computing, Laguna Hills, CA, USA, February 2-4, 2026.
  • DASFAA 2026: International Conference on Database Systems for Advanced Applications, Jeju, Korea, April 27-30, 2026.

    ASSOCIATE EDITOR
  • AIDB 2026: Applied AI for Database Systems and Applications , Boston, USA, August 31, 2026.
  • DOLAP 2026: International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data, Tampere, Finland, March 24, 2026.
• 2025
  • ACM SIGMOD 2025: ACM SIGMOD International Conference on Management of Data, Berlin, Germany, June 22-27, 2025.
  • VLDB 2025: International Conference on Very Large Data Bases, September 1-5, London, UK, 2025.

    ASSOCIATE EDITOR
  • IEEE ICDE 2025: IEEE International Conference on Data Engineering, Hong Kong, China, May 19-23, 2025.

    INDUSTRIAL
  • ACM CIKM 2025: ACM International Conference on Information and Knowledge Management, Seoul, Korea, November 10-14, 2025.
  • IEEE ICSC 2025: IEEE International Conference on Semantic Computing, Laguna Hills, CA, USA, February 3-5, 2025.
  • DASFAA 2025: International Conference on Database Systems for Advanced Applications, Singapore, May 25-28, 2025.
  • AIDB 2025: Applied AI for Database Systems and Applications , London, United Kingdom, September 1, 2025.
  • DBPL 2025: International Symposium on Database Programming Languages, Berlin, Germany, June 27, 2025.
  • DOLAP 2025: International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data, Barcelona, Spain, March 25, 2025.
  • LMD 2025: LLMs Meet Databases, Toronto, Canada, November 12, 2025.
• 2024
  • ACM SIGMOD 2024: ACM SIGMOD International Conference on Management of Data, Santiago, Chile, June 11-16, 2024.

    RAPID RESPONSE REVIEWER
  • VLDB 2024: International Conference on Very Large Data Bases, Guangzhou, China - August 26-30, 2024.

    TUTORIAL
  • IEEE ICDE 2024: IEEE International Conference on Data Engineering, Utrecht, Netherlands, April 16-19, 2024.

    INDUSTRIAL
  • EDBT 2024: International Conference on Extending Database Technology, Paestum, Italy, March 25-28, 2024.

    RESEARCH,INDUSTRIAL
  • ACM CIKM 2024: ACM International Conference on Information and Knowledge Management, Boise, Idaho, USA, October 21-25, 2024.
  • ACM SoCC 2024: ACM Symposium on Cloud Computing, Redmond, WA, USA, November 20-22, 2024.
  • IEEE ICSC 2024: IEEE International Conference on Semantic Computing, Laguna Hills, California, USA, February 5-7, 2024.
  • DASFAA 2024: International Conference on Database Systems for Advanced Applications, Gifu, Japan, May 14 - 16, 2024.
  • DaWaK 2024: International Conference on Data Warehousing and Knowledge Discovery, Naples, Italy, August 26-28, 2024.
  • DOLAP 2024: International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data, Paestum, Italy, March 25, 2024.
• 2023
  • VLDB 2023: International Conference on Very Large Data Bases, Vancouver, Canada, August 2023.

    ASSOCIATE EDITOR
  • IEEE ICDE 2023: IEEE International Conference on Data Engineering, Anaheim, California, USA, April 3- 7, 2023.

    AREA CHAIR(INDUSTRIAL)
  • EDBT 2023: International Conference on Extending Database Technology, Ioannina, Greece, March 28-31, 2023.
  • CIDR 2023: Conference on Innovative Data Systems Research, Amsterdam, NL, January 8-11, 2023.
  • ACM CIKM 2023: ACM International Conference on Information and Knowledge Management, Birmingham, UK, October 21-25, 2023.
  • ACM SoCC 2023: ACM Symposium on Cloud Computing, Santa Cruz, CA, USA, October 30 - November 1, 2023.
  • IEEE Big Data 2023: IEEE International Conference on Big Data, Sorrento, Italy, December 15-18, 2023.

    VICE CHAIR
  • IEEE DSAA 2023: Data Science and Advanced Analytics , Thessaloniki, Greece, October 9-13, 2023.

    INDUSTRIAL,APPLICATIONS
  • IEEE ICSC 2023: IEEE International Conference on Semantic Computing, Laguna Hills, California, February 1-3, 2023.
  • IEEE ICMLA 2023: IEEE International Conference on Machine Learning and Applications, Jacksonville, FL, USA, December 15-17, 2023.
  • DASFAA 2023: International Conference on Database Systems for Advanced Applications, Tianjin, China, April 17-20, 2023.
  • DaWaK 2023: International Conference on Data Warehousing and Knowledge Discovery, Panang, Malaysia, August 28-30, 2023.
  • SMDB 2023: International Workshop on Self-Managing Database Systems, Anaheim, California, USA, April, 2023.
  • DOLAP 2023: International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data, Ioannina, Greece, March 28, 2023.
• 2022
  • VLDB 2022: International Conference on Very Large Data Bases, Sydney, Australia, September 05-09, 2022.
  • IEEE ICDE 2022: IEEE International Conference on Data Engineering, Virtual Event, Kuala Lumpur, Malaysia, May 9-12, 2022.

    RESEARCH,INDUSTRIAL
  • EDBT 2022: International Conference on Extending Database Technology, Edinburgh, UK, March 29 - April 1, 2022.

    SENIOR PC
  • CIDR 2022: Conference on Innovative Data Systems Research, Chaminade, USA, January 9-12, 2022.
  • ACM CIKM 2022: ACM International Conference on Information and Knowledge Management, Hybrid Conference, Atlanta, Georgia, USA, October 17-22, 2022.
  • IEEE Big Data 2022: IEEE International Conference on Big Data, Osaka, Japan, December 17-20, 2022.
  • IEEE ICSC 2022: IEEE International Conference on Semantic Computing, Virtual Event, January 26-28, 2022.
  • IEEE ICMLA 2022: IEEE International Conference on Machine Learning and Applications, Nassau, The Bahamas, December 12-14, 2021.
  • DaWaK 2022: International Conference on Data Warehousing and Knowledge Discovery, Vienna, Austria, August 22-24, 2022.
  • DOLAP 2022: International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data, Edinburgh, UK, March 29, 2022.
  • SMDB 2022: International Workshop on Self-Managing Database Systems, Virtual Event, Kuala Lumpur, Malaysia, May 9, 2022.
• 2021
  • ACM SIGMOD 2021: ACM SIGMOD International Conference on Management of Data, Virtual Event, Xi'an, China, June 20 - 25, 2021.
  • ACM CIKM 2021: ACM International Conference on Information and Knowledge Management, Gold Coast, Australia, November 1-5, 2021.
  • ACM KDD 2021: International Conference on Knowledge Discovery and Data Mining, Virtual Event, August 14-18, 2021.

    APPLIED DATA SCIENCE
  • CIDR 2021: Biennial Conference on Innovative Data Systems Research, Virtual Event, January 11-15, 2021.
  • IEEE Big Data 2021: IEEE International Conference on Big Data, Virtual Event, December 15-18, 2021.
  • ACM DEBS 2021: International Conference on Distributed and Event-Based Systems, Virtual Event, Milan, Italy, June 28 - July 2, 2021.

    DEMO
  • IEEE ICSC 2021: IEEE International Conference on Semantic Computing, Virtual Event, January 27-29, 2021.
  • IEEE ICMLA 2021: IEEE International Conference on Machine Learning and Applications, Virtual Event, December 13-15, 2023.
  • DaWaK 2021: International Conference on Data Warehousing and Knowledge Discovery, Linz, Austria, September 27-30, 2021.
  • DOLAP 2021: International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data, Nicosia, Cyprus, March 23, 2021.
  • DS4CS 2021: International Workshop on Data Science for Cyber Security, Rhodes, Greece, July 26-28, 2021.
  • SEA Data 2021: International Workshop on Search, Exploration, and Analysis in Heterogeneous Datastores, Copenhagen, Denmark, August 20, 2021.
  • Simplify 2021: International Workshop on Data Analytics and Machine Learning Made Simple, Virtual Event, Nicosia, Cyprus, March 23, 2021.
  • SMDB 2021: International Workshop on Self-Managing Database Systems, Chania, Greece, April 19, 2021.
• 2020
  • VLDB 2020: International Conference on Very Large Data Bases, Virtual Event, Tokyo, Japan, August 31 - September 4, 2020.
  • ACM CIKM 2020: ACM International Conference on Information and Knowledge Management, Virtual Event, October 19 - 23, 2020.
  • ACM KDD 2020: International Conference on Knowledge Discovery and Data Mining, Virtual Event, San Diego, USA, August 22-27, 2020.

    APPLIED DATA SCIENCE
  • DASFAA 2020: International Conference on Database Systems for Advanced Applications, Jeju, Korea, September 24-27, 2020.
  • IEEE Big Data 2020: IEEE International Conference on Big Data, Virtual Event, Atlanta, USA, December 10-13, 2020.
  • IEEE ICSC 2020: IEEE International Conference on Semantic Computing, San Diego, USA, February 3-5, 2020.
  • DaWaK 2020: International Conference on Data Warehousing and Knowledge Discovery, Bratislava, Slovakia, September 14-17, 2020.
  • DOLAP 2020: International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data, Copenhagen, Denmark, March 30, 2020.
  • SMDB 2020: International Workshop on Self-Managing Database Systems, Dallas, Texas, April 20, 2020.
• 2019
  • VLDB 2019: International Conference on Very Large Data Bases, Los Angeles, California, August 26 - 30, 2019.
  • IEEE ICDE 2019: IEEE International Conference on Data Engineering, Macau, China, April 8-11, 2019.

    PHD SYMPOSIUM
  • EDBT 2019: International Conference on Extending Database Technology, ​Lisbon, Portugal, March 26-29, 2019.

    INDUSTRIAL
  • ACM KDD 2019: International Conference on Knowledge Discovery and Data Mining, Anchorage, USA, August 4 - 8, 2019.

    APPLIED DATA SCIENCE
  • CIDR 2019: Biennial Conference on Innovative Data Systems Research, Asilomar, California, January 13-16, 2019.
  • IEEE Big Data 2019: IEEE International Conference on Big Data, Los Angeles, USA, December 9-12, 2019.
  • IEEE ICSC 2019: IEEE International Conference on Semantic Computing, Newport Beach, USA, January 30 - February 1, 2019.
  • DASFAA 2019: International Conference on Database Systems for Advanced Applications, Chiang Mai, Thailand, April 22-25, 2019.
  • DaWaK 2019: International Conference on Data Warehousing and Knowledge Discovery, Linz, Austria, August 26 - 29, 2019.
  • DOLAP 2019: International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data, ​Lisbon, Portugal, March 26, 2019.
  • SMDB 2019: International Workshop on Self-Managing Database Systems, Macau, China, April 8, 2019.
• 2018
  • ACM SIGMOD 2018: ACM SIGMOD International Conference on Management of Data, Houston, TX, USA, June 3-8, 2018.
  • ACM KDD 2018: International Conference on Knowledge Discovery and Data Mining, London, UK, August 19 - 23, 2018.

    APPLIED DATA SCIENCE
  • IEEE Big Data 2018: IEEE International Conference on Big Data, Seattle, USA, December 10-13, 2018.

    SENIOR PC
  • DASFAA 2018: International Conference on Database Systems for Advanced Applications, Gold Coast, Australia, May 21-24, 2018.
  • ECML-PKDD 2018: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, Dublin, Ireland, September 10-14, 2018.

    APPLIED DATA SCIENCE
  • IEEE ICSC 2018: IEEE International Conference on Semantic Computing, Laguna Hills, USA, January 31 - February 2, 2018.
  • DaWaK 2018: International Conference on Data Warehousing and Knowledge Discovery, Regensburg, Germany, September 3 - 6, 2018.
  • DOLAP 2018: International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data, Vienna, Austria, March 26-29, 2018.
• 2017
  • VLDB 2017: International Conference on Very Large Data Bases, Munich, Germany, August 28 - September 1, 2017.

    DEMO
  • IEEE ICDE 2017: IEEE International Conference on Data Engineering, San Diego, USA, April 19-22, 2017.

    PHD SYMPOSIUM
  • IEEE Big Data 2017: IEEE International Conference on Big Data, Boston, USA, December 11-14, 2017.

    SENIOR PC
  • IEEE ICDE PhD Symp. 2017: IEEE ICDE PhD Symposium, San Diego, California, USA, April 20, 2017.
  • IEEE ICSC 2017: IEEE International Conference on Semantic Computing, San Diego, California, USA, January 30 - February 1, 2017.
  • ECML-PKDD 2017: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, Skopje, North Macedonia, September 18-22, 2017.

    INDUSTRIAL
  • DASFAA 2017: International Conference on Database Systems for Advanced Applications, Suzhou, China, March 27-30, 2017.

    RESEARCH,INDUSTRIAL
  • DaWaK 2017: International Conference on Data Warehousing and Knowledge Discovery, Lyon, France, August 28 - 31, 2017.
  • DOLAP 2017: International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data, Venice, Italy, March 21, 2017.
• 2016
  • ACM SIGMOD 2016: ACM SIGMOD International Conference on Management of Data, San Francisco, USA, June 26th - July 1st, 2016.

    REPRODUCIBILITY
  • IEEE ICDE 2016: IEEE International Conference on Data Engineering, Helsinki, Finland, May 16-20, 2016.
  • ACM CIKM 2016: ACM International Conference on Information and Knowledge Management, Indianapolis, USA, October 24-28, 2016.
  • IEEE Big Data 2016: IEEE International Confernece on Big Data, Washington DC, USA, November 15-18, 2016.
  • IEEE ICSC 2016: IEEE International Conference on Semantic Computing, Laguna Hills, California, February 3-5, 2016.
  • ECML-PKDD 2016: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, Riva del Garda, Italy, September 19–23, 2016.

    INDUSTRIAL
  • DaWaK 2016: International Conference on Data Warehousing and Knowledge Discovery, Porto, Portugal, September 5 - 8, 2016.
  • MoBiD 2016: International Workshop on Modeling and Management of Big Data, Gifu, Japan, 14-17 November 2016.
  • HDMS 2016: Hellenic Data Management Symposium, Athens, Greece, July 28-29, 2016.
  • DIACHRON 2016: International Workshop on Preservation of Evolving Big Data, Bordeaux, France, March 15-18, 2016.
• 2015
  • ACM SIGMOD 2015: ACM SIGMOD International Conference on Management of Data, Melbourne, VIC, Australia, May 31 - June 4, 2015.

    REPRODUCIBILITY
  • VLDB 2015: International Conference on Very Large Data Bases, Kohala Coast, Hawai'i, August 31 - September 4, 2015.
  • ACM CIKM 2015: ACM International Conference on Information and Knowledge Management, Melbourne, Australia, October 19-23, 2015.

    KNOWLEDGE MANAGEMENT
  • IEEE Big Data 2015: IEEE International Conference on Big Data, Santa Clara, CA, USA, October 29 - November 1, 2015.
  • IEEE ICSC 2015: IEEE International Conference on Semantic Computing, Anaheim, California, USA, February 7-9, 2015.
  • ECML-PKDD 2015: European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, Porto, Portugal, 7 - 11 September 2015.

    INDUSTRIAL
  • DaWaK 2015: International Conference on Data Warehousing and Knowledge Discovery, Valencia, Spain, September 1 - 4, 2015.
  • ACM DOLAP 2015: ACM International Workshop on Data Warehousing and OLAP, Melbourne, Australia, October 23, 2015.
  • MOD 2015: International Workshop on Machine learning, Optimization and Big Data, Taormina - Sicily, Italy, July 21 - 23, 2015.
  • MoBiD 2015: International Workshop on Modeling and Management of Big Data, Stockholm, Sweden, 19-22 October 2015.
• 2014
  • IEEE ICDE 2014: IEEE International Conference on Data Engineering, Chicago, IL, USA, March 31-April 4, 2014.
  • EDBT 2014: International Conference on Extending Database Technology, Athens, Greece, March 24-28, 2014.
  • ACM CIKM 2014: ACM International Conference on Information and Knowledge Management, Shanghai, China, November 3-7, 2014.

    KNOWLEDGE MANAGEMENT
  • IEEE Big Data 2014: IEEE International Conference on Big Data, Washington DC, USA, October 27-30, 2014.
  • IEEE ICSC 2014: IEEE International Conference on Semantic Computing, Newport Beach, California, USA, June 16-18, 2014.
  • DaWaK 2014: International Conference on Data Warehousing and Knowledge Discovery, Munich, Germany, September 1 - 5, 2014.
  • MoBiD 2014: International Workshop on Modeling and Management of Big Data, Atlanta, GA, USA, October, 27-30, 2014.
• 2013
  • IEEE Big Data 2013: IEEE International Conference on Big Data, Santa Clara, CA, USA, October 6-9, 2015.
  • IEEE ICSC 2013: IEEE International Conference on Semantic Computing, Irvine, California, USA, September 16-18, 2013.
  • MEDI 2013: International Conference on Model & Data Engineering, Amantea, Calabria, Italy, September 25-27, 2013.
  • DaWaK 2013: International Conference on Data Warehousing and Knowledge Discovery, Prague, Czech Republic, August 26 - 29, 2013.
  • ACM DOLAP 2013: ACM International Workshop on Data Warehousing and OLAP, Burlingame, CA, USA, October 28th, 2013.
  • BEWEB 2013: International Workshop on Business intelligencE and the WEB, Genoa, Italy - March 18-22, 2013.
  • DBRank 2013: International Workshop on Ranking in Databases, Riva del Garda, Trento, Italy, August 30, 2013.
  • MoBiD 2013: International Workshop on Modeling and Management of Big Data, Hong Kong, November 11-13, 2013.
  • OAIS 2013: International Workshop on Ontologies meet Advanced Information Systems, Genoa, Italy, September 1-4, 2013.
  • SoBI 2013: International Workshop on Social Business Intelligence, Genoa, Italy, September 1, 2013.
• 2012
  • IEEE ICDE 2012: IEEE International Conference on Data Engineering, Washington, DC, USA, April 1-5, 2012.

    DEMO
  • EDBT 2012: International Conference on Extending Database Technology, Berlin, Germany, March 26-30, 2012.

    INDUSTRIAL,DEMO
  • IEEE ICSC 2012: IEEE International Conference on Semantic Computing, Palermo, Italy, September 19-21, 2012.
  • ACM DOLAP 2012: ACM International Workshop on Data Warehousing and OLAP, Maui, Hawaii, USA, November 2nd, 2012.
  • MoDIC 2012: International Workshop on Modeling for Data-Intensive Computing, October 15-18, 2012, Florence, Italy.
  • BEWEB 2012: International Workshop on Business intelligencE and the WEB, Berlin, Germany, March 30th, 2012.
  • OAIS 2012: International Workshop on Ontologies meet Advanced Information Systems, Poznan, Poland, September 17, 2012.
  • DaWaK 2012: International Conference on Data Warehousing and Knowledge Discovery, Vienna, Austria, September 3 - 6, 2012.
  • WIDM 2012: International Workshop on Web Information and Data Management, Maui, Hawaii, 2 November, 2012.
  • DBRank 2012: International Workshop on Ranking in Databases, Istanbul, Turkey, August 27, 2012.
  • WOD 2012: International Workshop on Open Data, Nantes, France, May 25, 2012.
  • MEDI 2012: International Conference on Model & Data Engineering, Poitiers, France, October 3-5, 2012.
• 2011
  • MEDI 2011: International Conference on Model & Data Engineering, Obidos, Portugal, September 28- 30 2011.
  • ACM DOLAP 2011: ACM International Workshop on Data Warehousing and OLAP, Glasgow, Scotland, UK, October 28, 2011.
  • BEWEB 2011: International Workshop on Business intelligencE and the WEB, Uppsala, Sweden, 25 March, 2011.
  • DaWaK 2011: International Conference on Data Warehousing and Knowledge Discovery, Toulouse, France, 29 August - 2 September, 2011.
  • DESWeb 2011: International Workshop on Data Engineering meets the Semantic Web, Hannover, Germany, 11 April, 2011.
  • EDBT 2011: International Conference on Extending Database Technology, Uppsala, Sweden, March 22-25, 2011.
  • ER 2011: International Conference on Conceptual Modeling, Brussels, Belgium, October 31 - 3 November, 2011.

    DEMO AND POSTERS
  • HDMS 2011: Hellenic Data Management Symposium, Athens, Greece, June 17 - 18, 2011.
  • IEEE ICSC 2011: IEEE International Conference on Semantic Computing, Stanford University, Palo Alto, CA, USA, 18-21 September, 2011.
  • VLDB 2011: International Conference on Very Large Data Bases, Seattle, WA, USA, 29 August - 3 September, 2011.

    INDUSTRIAL
• 2010
  • ACM DOLAP 2010: ACM International Workshop on Data Warehousing and OLAP, Toronto, Canada, 30 October, 2010.
  • ACM SIGMOD 2010: ACM SIGMOD International Conference on Management of Data, Indianapolis, USA, 6-11 June, 2010.
  • ADBIS 2010: East-European Conference on Advances in Databases and Information Systems, Novi Sad, Serbia, 20-24 September, 2010.

    WAREHOUSES-OLAP (WOCD)
  • BEWEB 2010: International Workshop on Business intelligencE and the WEB, Lausanne, Switzerland, 22 March, 2010.
  • DaWaK 2010: International Conference on Data Warehousing and Knowledge Discovery, Bilbao, Spain, 30 August, 2010.
  • EDBT 2010: International Conference on Extending Database Technology, Lausanne, Switzerland, 22-26 March, 2010.

    DEMO
  • IEEE ICSC 2010: IEEE International Conference on Semantic Computing, Carnegie Mellon University, Pittsburgh, PA, USA, September 22-24, 2010.
  • QDB 2010: International Workshop on Quality in Databases , Singapore, 13 September, 2010.
• 2009
  • ACM DOLAP 2009: ACM International Workshop on Data Warehousing and OLAP, Hong Kong, China, 6 November, 2009.
  • DaWaK 2009: International Conference on Data Warehousing and Knowledge Discovery, Linz, Austria, 31 August - 4 September, 2009.
  • EDBT 2009: International Conference on Extending Database Technology, Saint-Petersburg, Russia, 23-26 March, 2009.

    DEMO
  • ER 2009: International Conference on Conceptual Modeling, Gramado, Brazil, November 9-12, 2009.

    DEMO
  • ESWC 2009: European Semantic Web Conference, Heraklion, Greece, 31 May - 4 June 2009.
  • HDMS 2009: Hellenic Data Management Symposium, Athens, Greece, 31 August - 1 September, 2009.
  • IEEE ICDE 2009: IEEE International Conference on Data Engineering, Shanghai, China, March 29 - April 4, 2009.
  • MEDWa 2009: Workshop On Managing Evolution Of Data Warehouses, Riga, Latvia, 7 September, 2009.
• 2008
  • ACM DOLAP 2008: ACM International Workshop on Data Warehousing and OLAP, Napa Valley, California, October 30, 2008.
  • BIRTE 2008: International Workshop on Business Intelligence for the Real Time Enterprise, Auckland, New Zealand, 24 August, 2008.
  • DaWaK 2008: International Conference on Data Warehousing and Knowledge Discovery, Turin, Italy, 1 - 5 September, 2008.
  • ER 2008: International Conference on Conceptual Modeling, Barcelona, Catalonia, Spain, 20-23 October, 2008.

    DEMO
  • ESWC 2008: European Semantic Web Conference, Tenerife, Spain, June 1-5, 2008.
  • IDEAS 2008: PhD Workshop, Münster, Germany, 3-5 September, 2008.

    PHD WORKSHOP
  • OBI 2008: International Workshop on Ontology-supported Business Intelligence, Karlsruhe, Germany, October 26-27, 2008.
• 2007
  • ACM DOLAP 2007: ACM International Workshop on Data Warehousing and OLAP, Lisbon, Portugal, 9 November, 2007.
  • ADBIS 2007: East-European Conference on Advances in Databases and Information Systems, Varna, Bulgaria, 29 September - 03 October, 2007.
  • DaWaK 2007: International Conference on Data Warehousing and Knowledge Discovery, Regensburg, Germany, 3 - 7 September, 2007.
• 2006
  • ACM DOLAP 2006: ACM International Workshop on Data Warehousing and OLAP, Arlington, USA, 10 November, 2006.
  • DaWaK 2006: International Conference on Data Warehousing and Knowledge Discovery, Krakow, Poland, 4 - 8 September, 2006.
• 2005
  • ACM DOLAP 2005: ACM International Workshop on Data Warehousing and OLAP, Bremen, Germany, 4 - 5 November, 2005.
  • Data Gadgets 2005: Bringing Up Emerging Solutions for Data Warehousing Systems, Granada, Spain, 13 - 16 September, 2005.
  • DaWaK 2005: International Conference on Data Warehousing and Knowledge Discovery, Copenhagen, Denmark, 22 - 26 August, 2005.

PC Member for Books and Special Issues

• IGIGB 2018: IGI Global, IGI, Book on “Utilizing Big Data Paradigms for Business Intelligence”, 2018.
• JoDS 2012: LNCS Journal on Data Semantics, Springer, Special issue on “Evolution and Versioning in Semantic Data Integration Systems”, 2012.
• IGIGB 2011: IGI Global, IGI, Book on “Business Intelligence Applications and the Web: Models, Systems and Technologies”, 2011.
• DKE 2009: Data & Knowledge Engineering Journal, Elsevier, Special issue on "Contribution of Ontologies in Designing Advanced Information Systems", 2009. [url]
• JoDS 2008: LNCS Journal on Data Semantics, Springer, Special issue on "Semantic Data Warehouses", 2008.
• AoIS 2008: Annals of Information Systems, Springer, Special issue on "New Trends in Data Warehousing and Data Analysis", 2008.
• IJBIDM 2008: International Journal of Business Intelligence and Data Mining, Inderscience, Special issue on "OLAP Intelligence: Meaningfully Coupling OLAP and Data Mining Tools and Algorithms", 2008.

Journal Referee

• ACM TWEB, Transactions on the Web, ACM: 2015
• CACM, Communications of the ACM, ACM: 2006, 2017, 2018
• CSUR, Computing Surveys, ACM: 2017
• DKE, Data & Knowledge Engineering, Elsevier: 2009, 2010
• DSS, Decision Support Systems, Elsevier: 2006
• IEEE TKDE, Transactions on Knowledge and Data Engineering, IEEE: 2007, 2009, 2010, 2013, 2014
• INS, Information Sciences, Elsevier: 2003, 2009
• IST, Information and Software Technology, Elsevier: 2009
• Inf. Syst., Information Systems, Elsevier: 2008, 2011, 2012, 2014, 2015
• JCST, Journal of Computer Science and Technology: 2008, 2010
• JDS, Journal of Data Science, ACM/IMS: 2022
• JUCS, Journal of Universal Computer Science, Springer: 2009
• JoDS, Journal on Data Semantics, Springer: 2008, 2012
• TODS, Transactions on Database Systems, ACM: 2023
• TOMPECS, Transactions on Modeling and Performance Evaluation of Computing Systems, ACM: 2018, 2019
• VLDB J., International Journal on Very Large Data Bases , VLDB Endowment: 2009, 2020, 2022

External Reviewer

• ACM CIKM: 2003, 2006
• ACM SIGGIS: 2005
• ACM SIGMOD: 2008, 2009
• CAiSE: 2002, 2003, 2004
• IEEE ICDE: 2004, 2005, 2006
• PODS: 2008
• VLDB: 2007, 2009, 2010

Academic School Organization

• ACM School 2025: 6th ACM Summer School in Data Science, Ioannina, Greece, June 30 - July 4, 2025.

  CO-ORGANIZER
• ACM School 2024: 5th ACM Summer School in Data Science, Athens, Greece, July 8-12, 2024.

  CO-ORGANIZER
• ACM School 2023: 4th ACM Summer School in Data Science, Athens, Greece, July 10-14, 2023.

  CO-ORGANIZER
• eBISSS 2023: 11th European Big Data Management & Analytics Summer School (eBISS 2023), Barcelona, Spain, July 3-7, 2023.

  ORGANIZATION PC
• DEDS School 2022: 1st DEDS Winter School on Ethical and Legal Aspects of Data, Athens, Greece, April 4-8, 2022.

  CO-ORGANIZER
• eBISSS 2022: 10th European Big Data Management & Analytics Summer School (eBISS 2022), Cesena, Italy, July 4-8, 2022.

  ORGANIZATION PC