Journals

(J2) Alexopoulos P., M. Wallace, K. Kafentzis, D. Askounis (2010), “Utilizing Imprecise Knowledge in Ontology-based CBR Systems through Fuzzy Algebra”, International Journal of Fuzzy Systems, Vol. 12, No. 1, March 2010.

(J1) Alexopoulos P., M. Wallace (2008), “A negotiation strategy for the Temporal Resource Reallocation Problem in multi-agent systems“, International Journal of Internet Protocol Technology (IJIPT), InderScience Publishers, Special Issue on Intelligent Internet-based Systems: Emerging Technologies and Programming Techniques.

Conferences

(C11) Kotis K., P. Alexopoulos, A. Papasalouros (2010), “Towards a Framework for Trusting the Automated Learning of Social ontologies”, Knowledge Science, Engineering and Management (KSEM) 2010, Belfast, Northern Ireland, September 1-3.

(C10) Anadiotis G., P. Alexopoulos, K. Mpaslis, A. Zosakis, K. Kafentzis, K. Kotis (2010), “Facilitating Dialogue - Using Semantic Web Technology for eParticipation”, 7th Extended Semantic Web Conference, Heraklion, Greece, May 30th - June 3rd.

(C9) Alexopoulos P., M. Wallace, K. Kafentzis, D. Askounis (2009) “Towards Effective Knowledge Management Through Fuzzy Semantics”, The Third International Multi-Conference on Computing in the Global Information Technology 2009, Cannes, France, August 23-29.

(C8) Alexopoulos P., K. Kafentzis, C. Zoumas (2009), “ELMO: An Interoperability Ontology for the Electricity Market“, International Conference on e-Business 2009, Milan, Italy, July 7-10.

(C7) Alexopoulos P., M. Wallace, K. Kafentzis, A. Thomopoulos (2009), “A Fuzzy Knowledge-based Decision Support System for Tender Call Evaluation”,  5th IFIP Conference on Artificial Intelligence Applications & Innovations (AIAI) 2009, Thessaloniki, Greece, April 23-25.

(C6) Alexopoulos P., M. Wallace, K. Kafentzis (2008), “A Fuzzy Ontology Framework for Customized Assessment of Semantic Similarity“, 3rd International Workshop on Semantic Media and Adaptation (SMAP 2008), Prague, Czech Republic, December 15-16.

(C5) Alexopoulos P. (2007), “Resource Sharing in Multi-Agent Systems through Multi-Stage Negotiation“, 4th IFIP Conference on Artificial Intelligence Applications & Innovations (AIAI) 2007, Athens, Greece, September 19-21.

(C4) Dimakopoulos T., K. Kassis, S. Nikoloutsos, P. Alexopoulos, P. Georgolios, K. Kafentzis, X. Benetou, T. Tagaris (2007), “iWebCare: an Integrated Web Services Platform for the Facilitation of Fraud Detection in Health Care e-Government Services“, presented in eGovINTEROP’07 “eGovernment Interoperability Conference 2007”, Paris, France, October 9-12.

(C3) Alexopoulos, P., K. Kafentzis, X.Benetou, T. Tagaris, P. Georgolios (2007), “Towards a generic fraud ontology in e-government“, International Conference on e-Business 2007, Barcelona, Spain July 28-31 (included in the conference’s best paper list).

(C2) Alexopoulos, P., X.Benetou, T. Tagaris, P. Georgolios, K. Kafentzis (2007), “iWebCare: an Ontological Approach for Fraud Detection in the Healthcare Domain“, International Conference on Information Technologies 2007, Varna, Bulgaria, September 21-23.

(C1) Kafentzis Κ., P. Alexopoulos, C. Korakas, V. Goulandris, I. Baseas, P. Georgolios (2007), “Enabling Citizen Participation in Local Governance using ICT“, 3rd National Conference of the Hellenic Society for Systemic Studies 2007, Piraeus, May 26-28.

Book Chapters

(BC3) Alexopoulos P., M. Wallace,K. Kafentzis, Ch. Zoumas, D. Askounis (2010), “Semantic-Enabled Information Access: An Application in the Electricity Market Domain”, M. Wallace, Ph. Mylonas, I. Anagnostopoulos, M. Bielikova (Eds), Semantics in Adaptive and Personalised Services: Methods, Tools and Applications, Springer, 2010.

(BC2) Alexopoulos P., K. Kafentzis, N. Athanassiadis, X. Benetou, T. Tagaris, C. Jollie, P. Georgolios (2008), “An Adaptive Knowledge-Based Approach for Detecting Fraud across Different e-Government Domains”, J. Filipe and M.S. Obaidat (Eds): ICETE 2007, CCIS 23, pp. 110-121, Springer-Verlag Berlin Heidelberg 2008.

(BC1) Kafentzis K., Wallace M., Georgolios P., Alexopoulos P., Mentzas G. (2007),  “Semantics Enabled Problem Based Brokering of Organizational Knowledge“, Maglogiannis I., Karpouzis K., Soldatos J., Wallace M. (eds) Emerging Artificial Intelligence Applications in Computer Engineering, IOS Press, 2007.

Theses

(T2) P. Alexopoulos, “Multi-stage Negotiation“, MSc Thesis, Imperial College London, September 2005, London, United Kingdom.

(T1) P. Alexopoulos, “A Semantic Web system for retrieval and composition of knowledge web services in an e-business environment“, Diploma Thesis, National Technical University of Athens, July 2004, Athens, Greece.