October 2nd, 2007

Arthur van Bunningen

Title: An Answer Explanation Model for Probabilistic Database Queries

Abstract: In this presentation I will present a method of explaining probabilistic database queries. First I will motivate the need for explanation and indicate what we exactly mean by "explanation" in a probabilistic database context. Then I will describe the event expression based probabilistic datamodel, present our explanation methods and some basic optimization methods, after which I report on (both quantitative and qualitative) performance of the mod