Invited Talk: "Computational Argumentation Frameworks" by Dr. Vassiliki Efstathiou

Athens, 31 May 2013, 15:00

Speaker: Dr. Vassiliki Efstathiou

Abstract:

Argumentation is a significant cognitive process commonly invoked by humans when trying to make decisions. Consider diverse professionals such as politicians, journalists, clinicians, scientists, and administrators, who all need to collate and analyse information when attempting to understand problems and make decisions for consequences of importance. This analysis usually takes place as the process of looking for pros and cons for a case or, in equivalence, in the form of listing arguments for and against the case, affording this way an approach to reasoning with inconsistent knowledge. Argumentation may involve only one agent where given a knowledge base, a monological process of listing arguments and counterarguments for a case is employed in order to evaluate a situation, or a group of agents where the exchange of arguments among the agents can be used as the tool for resolving conflicts or sharing information.
 
Formalising argumentation in computational environment has become a topic of increasing interest in artificial intelligence research over the last decade with its various applications on domains including medical decision support, legal decision support, e-procurement and e-democracy among others. Different logics provide different definitions for consistency and entailment and hence give different options for modelling the process of argumentation and evaluating counterargument relations. This talk provides an overview on prominent argumentation frameworks along with indicative application domains.