Reasoning about uncertainty and correlated beliefs
|Hui Wan||SUNY at Stony Brook||[Home Page]|
Notice: Hosted by Vinay Chaudhri. Note the non-usual day (Wednesday) and venue.
Date: Wednesday, April 28th 2010 at 4:00pm
Location: EK255 (SRI E building); WebEx 1-888-355-1249, 749045 (sound), https://sri.webexone.com/webservice/wxr.aspx?_command=join&MK=486937772 (slides via Web) (Directions)
Real-world applications often must deal with various kinds of uncertainty. For knowledge representation and reasoning in the presence of uncertainty, it is important to be able to integrate information from different sources and assess the overall quality of the combined evidence. Combining evidence from different sources is particularly hard when different pieces of evidence supplied by these sources are correlated and possibly are in conflict.
To address this challenge, I developed Belief Logic Programming (BLP), a novel reasoning framework that deals with uncertain and inconsistent information and is able to combine and correlate evidence obtained from non-independent information sources. BLP has well-defined declarative and fixpoint semantics, and an optimized query evaluation algorithm. BLP has strong relationships to defeasible reasoning, paraconsistent reasoning, and Dempster-Shafer theory of evidence.
At the end of my talk, I will briefly describe my contributions to the multi-institution project SILK, which is part of Project Halo, and the FLORA2 system, a powerful frame-based knowledge representation and reasoning system.
Please arrive at least 10 minutes early as you will need to sign in by following instructions by the lobby phone at Building E (or call Wilma Lenz at 650 859 4904, or Vicenta at Lopez at 650 859 5750). SRI is located at 333 Ravenswood Avenue in Menlo Park. Visitors may park in the parking lots off Fourth Street. Detailed directions to SRI, as well as maps, are available from the Visiting AIC web page. There are two entrances to SRI International located on Ravenswood Ave. Please check the Building E entrance signage.