Time: 12:00-13:00 Tuesday 9th April, 2013
Location: MT203, Meston Building, University of Aberdeen
Speaker: Dr. Panos Alexopoulos (iSOCO)
Title: Modelling Vagueness in Ontologies and Semantic Data A Methodological Perspective
The phenomenon of vagueness, manifested by terms and concepts like Tall, Red, Modern, etc., is quite common in human knowledge and it is related to our inability to precisely determine the extensions of such terms due to their blurred applicability boundaries. In the context of Ontologies and Semantic Web, vagueness is primarily treated by means of Fuzzy Ontologies, namely extensions of classical ontologies that apply truth degrees to vague ontological elements in an effort to quantify their vagueness and reason with it. Nevertheless, while a number of fuzzy conceptual formalisms and fuzzy ontology language extensions for representing vagueness in ontologies have been proposed by the community, the methodological issues entailed within the development process of such ontologies have been rather neglected. In this talk we position vagueness within the overall lifecycle of semantic information management and we present IKARUS-Onto, a methodology for engineering fuzzy ontologies that covers all typical ontology development stages, from specification to validation.
Dr. Panos Alexopoulos is a Senior Researcher at Intelligent Software Components (iSOCO) S.A in Madrid, Spain, conducting and managing product-oriented R&D activities in the areas of Intelligent Information Access, Knowledge Management and Semantic Web. Prior to joining iSOCO he had been working as a semantic solutions architect and ontologist for IMC Technologies S.A. in Athens, Greece as well as a Computer Science lecturer for Mediterranean College Athens. Panos holds a PhD in Knowledge Engineering and Management from National Technical University of Athens (2012), an MSc in Advanced Computing from Imperial College London (2005) and a diploma in Electrical & Computer Engineering from National Technical University of Athens (NTUA) (2004). Until now he has published 30 articles at international conferences, journals and books while he serves on the editorial boards and program committees of a number of scientific publications.