About CaféDSLcafe

The CaféDSL is a weekly seminar, hosted by the Decision Systems Lab. The aim of the CaféDSL is to disseminate new research knowledge within the Department of Informatics, and wider University of Wollongong communities.

The CaféDSL hosts students, academics and other invited guests for an evening of discussion and networking over (of course) pizza and assorted soft-drinks. Everyone is welcome and encouraged to attend.


Relevance in Belief Revision

Presenter(s): Prof. Pavlos Peppas, University of Patras, Greece

Date: August 20, 2015

Time: 4pm onwards

Venue: 6.105 – Smart Building

Abstract: A quarter of a century ago, a new research area, now known as Belief Revision, emerged at the cross-section of Formal Philosophy and Artificial Intelligence. In Belief Revision the problem at focus is the process by which a rational agent changes her beliefs in the light of new information. What makes the problem non-trivial is that, in principle, it is not enough to simply add the new information to one’s stock of beliefs; some of the old beliefs need to be withdrawn, on pain of inconsistency. Furthermore, there is typically more than one choice on which beliefs to give up. In making this choice the agent, arguably, need to consider the relevance of the new information to the old beliefs. In this talk we shall review the most important ideas and results in Belief Revision, and we shall examine the recent attempts that have been made to formalize the role of relevance in the area.

Bio: Pavlos Peppas received his Diploma in Computer Engineering and Infomatics from the University of Patras in 1988, and his PhD in Computer Science from the University of Sydney in 1994. He was appointed at Macquarie University as a lecturer in 1993, and was promoted to senior lecturer in 1998. In 2000 and for about two years he worked in industry (Intrasoft, Athens), and later joined AIT (Athens Information Technology) as a Senior Scientist. From 2001 to 2004, Pavlos was Adjunct Associate Professor at the School of Computer Science and Engineering at the University of New South Wales. In November 2003 he joined the Dept of Business Administration at the University of Patras as an Associate Professor and was promoted to Professor in 2013. Since July 2013, Pavlos is also a Principal Research Fellow at the University of Technology, Sydney. His research interests lie primarily in the area of Knowledge Representation and Reasoning, with a focus on Belief Revision and on Reasoning about Action.