Gregoris Mentzas is full Professor of Management Information Systems, School of Electrical and Computer Engineering, National Technical University of Athens (NTUA) and Founder and Director of the Information Management Unit (IMU) at the Institute of Communication and Computer Systems (ICCS). He is representing ICCS/NTUA at international organisations like the Big Data Value Association (BDVA - and especially the Ethical and Trustworthy Artificial and Machine Intelligence task force), the AI, Data and Robotics Association (ADRA), the European Trustworthy AI Association (ETAIA), the “Center for European Research in Trusted AI" (CERTAIN) and the GAIA-X partnership.

His main research focus is on AI-enabled decision support: augmenting human intelligence with data-driven approaches and using Artificial Intelligence to elevate human decision-making competence.

His current research concerns:

1. trustworthy, responsible and human-centred artificial intelligence
2. prescriptive data analytics for digital assistants in industry 4.0,
3. the use of big data analytics in applications like personalised health, smart mobility, technology acceptance and sustainable living.

Prof. Mentzas has published 4 books and more than 400 papers in international peer-reviewed journals and conferences and 5 best paper awards.

He sits on the editorial board of five international journals and has served as (co-)Chair or Program Committee Member in more than 60 international conferences.

Prof. Mentzas is consistently in the top 2% of highly cited scientists globally in a publicly available list of more than 7 million scientists in all areas of research and technology (22 scientific fields and 176 sub-fields). The list, which was published in 2021 in the journal PLOS Biology, retrieved data from the SCOPUS database and used a range of parameters for each scientist’s research contribution and influence, analyzed data of 7 million scientists with at least five published articles on the SCOPUS database. As a result, a list of the top 2% scientists from all scientific subjects was compiled. The classification takes into account standardized information on citations like the h-index, co-authorship adjusted hm-index,

Research carried out by his group has led to the establishment of three internet technology companies.

His experience includes twelve years of management consulting in corporate strategy and information systems strategy. He holds a Diploma Degree in Engineering (1984) and a Ph.D. in Operations Research and Information Systems (1988) both from NTUA. During 1996-1997 he held a Visiting Fellowship of the Royal Society within the Εuropean Science Exchange Programme on the topic "Information Management Systems" to Oxford University (Templeton College) and University of Cambridge (Judge Institute of Management Studies).

During 2006-2009 he served as member of the Board of Directors of the Institute of Communication and Computer Systems, while in the 2010-2019 period he was Director of the division of "Industrial Electric Devices and Decision Systems" at the School of Electrical and Computer Engineering, NTUA.

Parallel to this academic work he is an enthusiast black and white photographer, see his work at http://www.gregorismentzas.com.

Research activity: In 1997 Prof. Mentzas established, and has since been leading, the Information Management Unit (IMU) http://imu.ntua.gr, a research laboratory at the National Technical University of Athens. The mission of IMU is to enable the development of knowledge-driven organisations. IMU is a member of the Confederation of Laboratories for Artificial Intelligence Research in Europe (CAIRNE).

Since its establishment IMU has actively contributed in sixty (60) research and development projects. The total funding from research grants administered by IMU since 1997 exceeds 18.0 million euros.

Recently IMU has established a separate lab especially focusing on Trustworthy AI; see http://imu.ntua.gr/trail/

Papers and citations: prof. Mentzas has published:

1. 4 books and
2. more than 400 papers in international peer-reviewed journals and conferences.

For a list of publications see our list]http://imu.ntua.gr/publications and DBLP.

Google Scholar estimates more than 11,000 citations and an h-index higher than 50 while Elsevier's Scopus finds more than 5,500 citations and an h-index of 36 (January 2026)

Teaching experience: Responsible for the following courses: Management of the Digital Enterprise (8th semester); Project Management (9th semester course); Management Game (9th semester course); Strategic Information Systems Management (given within the PhD program of the School); Project Management (within the post-graduate programme "Engineering-Economic Systems). Prof Mentzas has lectured on e-business and e-government topics in post-graduate programs in Greece (the Athens MBA programme and the Energy Management program) and lectured in seminars (Germany, UK, Denmark, Africa and Bulgaria).

Research grant evaluation and review: Prof. Mentzas has acted as grant evaluator within the following research programs:

1. Information Society Technologies (IST) programme of the European Commission under the following action lines:
2. “Knowledge Management” (2000-2003),
3. “Intelligent Content & Semantics” (2007-2010),
4. “Virtual Factories and Enterprises" (2011);
5. Research programs funded by the Swiss National Science Foundation (Fonds National Suisse de la Recherche Scientifique);
6. Research programs funded by the Austrian Science Fund (Fonds zur Förderung der wissenschaftlichen Forschung, FWF), topic: Information Society;
7. Research programs funded by the Cyprus Research Promotion Foundation (RPF), topic: Information Society.
8. Research projects funded by the JRC Centre for Advanced Studies (CAS).
9. Research projects funded by the NWO, the Dutch Research Council.

In addition, he has acted as external reviewer monitoring and evaluating the progress of large-scale cooperative research projects funded by the European Commission in the following research areas:

1. Virtual Factories and Enterprises (one project, 2010-2012);
2. Semantic web information systems (two projects, 2004-2006 and 2008-2010);
3. Knowledge management (one project, 2006-2009);
4. Internet of services (two projects, 2007-2010);
5. E-government and e-participation (three projects, 2007-2012).

Editorial activities: Member of the editorial board of the following journals:

1. Associate Editor of the journal Frontiers in Artificial Intelligence (section "AI in Business")
2. Area Editor of the International Journal of Knowledge-Based Organizations (IJKBO);
3. Associate Editor of the International Journal of Electronic Government (EG);
4. Associate Editor of the International Journal of Learning and Intellectual Capital (IJLIC);
5. Associate Editor of the International Journal of Innovation and Learning (IJIL);
6. Associate Editor of the International Journal of Cases on Electronic Commerce (IJCEC).

Chair or co-chair of conferences, workshops and journal special issues (indicative list):

1. Co-chair of the 1st International Workshop on Socially Intelligent Computing (SINCOM 2012), part of the OnTheMove OTM Federated Conferences (OTM'12) Rome, Italy, 13-14 Sept. 2012;
2. Co-editor of Special Issue of IEEE Intelligent Systems on “Transforming E-government and E-participation through IT”, IEEE Intelligent Systems, September/October 2009;
3. Co-chair of AAAI Spring Symposium 2009 on Intelligent Event Processing; Co-chair of the workshop “Analysing eParticipation Contributions”, within the 8th Annual International Digital Government Research Conference, May 20-23 2007, Philadelphia, USA;
4. Chair of the workshop “Towards Semantic Interoperability in eHealth”, on 12 March 2007 in Brussels;
5. Co-chair of workshop on “Knowledge, Learning and Innovation Management” within the 22nd EURO Conference, 8-11 July 2007, Prague;
6. Chair of workshop on “Knowledge and Semantic Technologies for eParticipation” 5 December 2006 in Athens, Greece;
7. Co-chair of workshop on “Semantic Web and Enterprise Application Integration”, 21/9/06, Brussels;
8. Co-chair of the workshop on “Semantic Web and eGovernment”, 3rd Annual European Semantic Web Conference, Budva, Montenegro from the 11th - 14th June;
9. Co-chair of the “1st International Symposium on the Semantic Web and eGovernment”, AAAI Spring Symposium Series at Stanford University, USA, March 27-29, 2006.

Student Supervision: Prof. Mentzas has supervised more than 100 diploma theses. Under his supervision 21 PhD theses have been completed and 9 are currently in progress:

1. "Supporting Virtual Consortia Formation over the Web", Christos E. Halaris (December 2000)
2. "Development of Methods and Systems for Corporate Knowledge Management", Dimitris Apostolou (March 2002)
3. "Design and Implementation of a Collaboration Management System", Georgia Bafoutsou (March 2002)
4. "Ontology-based Knowledge Management in Knowledge-intensive Business Processes", Spyros Ntioudis(September 2005)
5. "Knowledge Services: A Semantic Web Services Environment ", Panos Georgolios (December 2005)
6. "Inter-organisational Workflow Management Systems", Yiannis Verginadis, (February 2006)
7. "A Semantic Competence Management System ", Fotis Draganidis (June 2009)
8. "Adaptive Evaluation of Electronic Services: An e-Government Case" Babis Magoutas (April 2010)
9. "Social Computing with Information Markets" Efthimios Bothos (January 2011)
10. "Autonomous Network Service Delivery" Panagiotis Gouvas (April 2011)
11. "Semantic Knowledge Management in Software Development " Dimitris Panagiotou (May 2011)
12. "Evaluation of E-Government Service Quality" Xenia Papadomichelaki (June 2011)
13. "Probabilistic Topic Models in Recommender Systems" Konstantinos Christidis (February 2013)
14. "Adaptive Clinical Pathways with Semantic Web technology" Dimitris Alexandrou (June 2014)
15. "Event-driven Process Adaptation" Yannis Patiniotakis (July 2016)
16. "Collaboration Support Systems with Semantically-enhanced Patterns" Nikos Papageorgiou (October 2016)
17. “Proactive Decision Making in Industry 4.0” Alexandros Bousdekis (June 2018)
18. “Personalised Persuasive Technologies for Behavioural Change” Evaggelia Anagnostopoulou (May 2020)
19. “Leveraging Creativity with Exploratory Search” Maria Taramigkou (July 2020)
20. “Model-driven adaptation of Function-as-a-Service applications” Andreas Tsagkaropoulos (Jun 2021)
21. “Prescriptive Analytics with Interactive Reinforcement Learning in Decision Making)” Katerina Lepenioti (Dec. 2022)
22. "Cloud Resources Management and Monitoring of Distributed Applications” Vassilis Stefanidis (September 2024)
23. "Human-in-the-Loop Predictive Analytics for Incident Detection in Smart Transportation Systems" Georgia Gkioka(March 2025)
24. "Trustworthy AI operations with conversational assistance and agentic workflows", Mattheos Fikardos (in progress)
25. "Electric Vehicle Battery Prognostics with Machine Learning", Afroditi Fouka (in progress)
26. “Recommender systems in Software Communities” Fotis Paraskevopoulos (in progress)
27. "Personalised Recommender Systems for Mobility-as-a-Service Models” Konstantina Arnaoutaki (in progress)
28. ""Information Systems of Digital Enterprises Dora Mavrodopoulou (in progress)
29. "Data Analytics for Airport Process Reengineering", Paris Chavatzopoulos (in progress)
30. "Data Analytics for Digital Mines", Stefanos Kontos (in progress)