Scientific Activities
Editor-in-Chief
- Associate Editor-in-Chief of the International Journal on AI Tools (IJAIT) (Editorial)
Editorial boards
- Member of the Editorial Board of the International Journal on Hybrid Intelligent Systems (IJHIS) (Editorial)
- Member of the Editorial Board of the International Journal of Web Based Communities (IJWBC) (Editorial)
Organizing events
- Program Committee Chair of the 19th IEEE International Conference on Tools with AI (ICTAI-2007).
- Co-organizer and Program Committee Co-chair of the Invited session on Hybrid Intelligent Systems in Medicine and Health Care in the context of the 10th International Conference on Knowledge-Based Intelligent Information and Engineering Systems (KES-2006).
- Organizer and Program Committee Chair of the International Workshop on Combining Intelligent and Adaptive Hypermedia Methods/Techniques in Web-Based Education Systems, in the context of the 16th ACM Conference on Hypertext and Hypermedia (HT-05), Salzburg, Austria, 6-9 Sept. 2005.
- Co-organizer and Program Committee Co-chair of the Special Track on Integrated Intelligent Systems (Home) in the context of 17th International FLAIRS Conference (FLAIRS-2005) (Home), Clearwater Beach, Florida, May 15-17, 2005.
- Organizer and Program Committee Chair of the Special Track on Integrated Intelligent Systems (Home) in the context of 16th International FLAIRS Conference (FLAIRS-2004) (Home), Miami Beach, Florida, May 17-19, 2004.
- Organizer and Program Committee Chair of the Invited Session on AI Techniques in Web-based Educational Systems (Home) in the context of 7th International Conference on Knowledge-Based Intelligent Information & Engineering Systems (KES-2003) (Home), Oxford, UK, September 2-5, 2003.
- Organizer and Program Committee Chair of the Special Track on Integrated Intelligent Systems (Home) in the context of 16th International FLAIRS Conference (FLAIRS-2003) (Home), St. Augustin, Florida, May 12-14, 2003.
- Organizer and Program Committee Chair of the Special Track on Integrated Intelligent Systems (Home) in the context of 15th International FLAIRS Conference (FLAIRS-2002) (Home), Crown Plaza Pensacola Grand Hotel,
Pensacola, Florida, May 16-18, 2002.
Program Committee (PC) Participations
- 20th International FLAIRS Conference (FLAIRS-2007), Key West, FL, USA, 2007.
- 3rd International Conference on Web Information Systems and Technology (WEBIST-2007), Barcelona, Spain, 2007.
- 3rd International Workshop on “Neural-Symbolic Learning and Reasoning” (NeSy-07), at IJCAI-07, Hyderabad, India, 2007.
- 19th International FLAIRS Conference (FLAIRS-2006), Melbourne Beach, FL, USA, 2006.
- 10th International Conference on Knowledge-Based Intelligent Information and Engineering Systems (KES-2006), Bournemouth, UK, 2006.
- IADIS International e-Commerce Conference (EC-2006), Barcelona, Spain, 2006.
- 11th Online World Conference on Soft Computing in Industrial Applications (WSC11), 2006.
- 2nd International Workshop on “Neural-Symbolic Learning and Reasoning” (NeSy-06), at ECAI-06, Riva del Garda, Italy, 2006.
- International Workshop on “Architectures, Models and Infrastructures to Generate Semantics in Peer to Peer and Hypermedia Systems”, at 17th ACM Conference on Hypertext and Hypermedia (ACM HT-2006).
- PC Member of the IADIS International e-Commerce Conference (EC-2005) (Home ), Porto, Portugal, December 15-17, 2005.
- PC Member of the17th IEEE International Conference on Tools with AI (ICTAI'05) (Home ), Hong Kong, China, November 14-16, 2005.
- PC Member of the 18th International FLAIRS Conference (FLAIRS-2005) (Home), Clearwater Beach, Florida, May 15-17, 2005.
- PC Member of the16th IEEE International Conference on Tools with AI (ICTAI'04) (Home ), Boca Raton, Florida, USA, November 15-17, 2004.
- PC Member of the International Conference on Intelligent Knowledge Systems (IKS-2004) (Home), Assos, Troy, Turkey, Aug. 16-20, 2004.
- PC Member of the 17th International FLAIRS Conference (FLAIRS-2004) (Home), Maimi Beach, Florida, May 17-19, 2004.
- PC Member of the IADIS International Conference on Web Based Communities (WBC-2004) (Home), March 25-26, Lisbon, Portugal.
- PC Member of the15th IEEE International Conference on Tools with AI (ICTAI'03) (Home ), Sacramento, California, USA, November 3-5, 2003.
- PC Member of the 7th International Conference on Knowledge-Based Intelligent Information & Engineering Systems (KES-2003) (Home), Oxford, UK, September 2-5, 2003.
- PC Member of the IASTED Conference on Computers and Advanced Technology in Education (CATE-2003) and IASTED International Symposium on Web-Based Education (WBE-2003) (Home), Rhodes, Greece, June 30-July 2, 2003.
- PC Member of the 16th International FLAIRS Conference (FLAIRS-2003) (Home), St. Augustin, Florida, May 12-14, 2003.
- PC Member of the14th IEEE International Conference on Tools with AI (ICTAI'02) (Home ), Washington DC, USA, November 4-6, 2002.
- PC Member of the 15th International FLAIRS Conference (FLAIRS-2002) (Home), Beachside Resort and Conference Center,
Pensacola Beach, Florida, May 16-18, 2002.
- PC Member of the 2nd Hellenic Conference on Artificial Intelligence (SETN-2002) (Home), Thessaloniki, Greece, April 11-12, 2002.
- PC Member of the 14th International FLAIRS Conference (FLAIRS-2001) (Home), Key West, Florida, May 2001.
- PC Member of the 13th International FLAIRS Conference (FLAIRS-2000) (Home), Orlando, Florida, May 2000.
- Vice Chair for the area of Intelligent Tutoring Systems in the PC of the 11th IEEE International Conference on Tools with AI (ICTAI'99) (Home) (Procs), Chicago, Illinois, November 1999.
- Vice Chair for the area of Knowledge Representation and Knowledge-Based Systems in the PC of the 9th IEEE International Conference on Tools with AI (ICTAI'97) (Procs ), Newport Beach, California, USA, November 1997.
Reviewing
- Reviewer for the conferences I have served as a PC member.
- Permanent reviewer for the Data & Knowledge Engineering International Journal (Elsevier Science) and the International Journal of Knowledge-Based and Intelligent Engineering Systems (IOS Press)
- Ocasional reviewer for the IEEE Transanctions on Knowledge & Data Engineering (IEEE Computer Society), AI in Medicine (Elsevier Science), the Journal of Intelligent & Robotic Systems (Kluwer Academic), the Journal of Intelligent Systems and the International Journal of Computational Intelligence.