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See detailPoles Apart : Navigating the Space of Opinions in Argumentation
Podlaszewski, Mikołaj UL

Doctoral thesis (2015)

Formal argumentation is a popular reasoning method in knowledge representation for intelligent systems. For the past 20 years it has been based on Dung’s abstract argumentation theory. More recently ... [more ▼]

Formal argumentation is a popular reasoning method in knowledge representation for intelligent systems. For the past 20 years it has been based on Dung’s abstract argumentation theory. More recently several challenges have been made to this standard - for example in dynamics and aggregation of argumentation frameworks. To support these new developments in this thesis new foundations are developed based on distance measures. We introduce postulates for distance measures and we show their consistency by constructing concrete measures. In the process we develop the new notion of issue. Subsequently we use the distance measures in argumentation using distance based operators introduced by Miller and Osherson in judgment aggregation. Moreover in this thesis we also improve dialectical proof procedures for grounded semantics and study postulates of non-interference and crash resistance for Dung based non-monotonic inference. [less ▲]

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See detailQuantifying disagreement in argument-based reasoning
Booth, Richard UL; Caminada, Martin UL; Podlaszewski, Mikołaj UL et al

in 11th International Conference on Autonomous Agents and Multiagent Systems (AAMAS 2012) (2012)

An argumentation framework can be seen as expressing, in an abstract way, the conflicting information of an underlying logical knowledge base. This conflicting information often allows for the presence of ... [more ▼]

An argumentation framework can be seen as expressing, in an abstract way, the conflicting information of an underlying logical knowledge base. This conflicting information often allows for the presence of more than one possible reasonable position (extension/labelling) which one can take. A relevant question, therefore, is how much these positions differ from each other. In the current paper, we will examine the issue of how to define meaningful measures of distance between the (complete) labellings of a given argumentation framework. We provide concrete distance measures based on argument-wise label difference, as well as based on the notion of critical sets, and examine their properties. [less ▲]

Detailed reference viewed: 44 (7 UL)
Peer Reviewed
See detailQuantifying disagreement in argument-based reasoning
Booth, Richard UL; Caminada, Martin UL; Podlaszewski, Mikołaj UL et al

Scientific Conference (2011)

Detailed reference viewed: 150 (3 UL)