LIRa session: Chenwei Shi

On Friday March 4th, we will have a LIRa session with Chenwei Shi.
Everyone is cordially invited!

Speaker: Chenwei Shi (ILLC)

Date and Time: Friday, March 4th 2016, 13:00-14:30

Venue: ILLC Seminar Room F1.15, Science Park 107

Title: Beliefs Supported by Arguments.

Abstract. In this talk, I will present the ongoing work (with Sonja Smets)  which explores the relation between an agent’s doxastic attitude and her arguments in support of a given claim. Formally, we build further on Dung’s argumentation framework in Dung 1995. After introducing a number of notions from abstract argumentation theory, including the attack of an argument, the acceptability of an argument, the conflict-freeness of a set of arguments and its admissibility,  I will extend the basic framework of the abstract argumentation theory. This extension allows us to define new concepts, indicating when an argument perfectly defends a given claim P or when an argument only strategically defends a given claim P.  The concept of strategic defensibility is then used to link an agent’s arguments to her doxastic attitude. In order to reason about this interaction, we propose a two-dimensional logic. Moreover, I will talk about some possible directions of developing this logic.

(Reference: Dung, P. M. (1995). On the acceptability of arguments and its fundamental role in nonmonotonic reasoning, logic programming and n-person games. Artificial intelligence, 77:321-357)