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Communication Dans Un Congrès Année : 2008

Arguing and explaining classifications

Résumé

Argumentation is a promising approach used by autonomous agents for reasoning about inconsistent knowledge, based on the construction and the comparison of arguments. In this paper, we apply this approach to the classification problem, whose purpose is to construct from a set of training examples a model (or hypothesis) that assigns a class to any new example. We propose a general formal argumentation-based model that constructs arguments for/against each possible classification of an example, evaluates them, and determines among the conflicting arguments the acceptable ones. Finally, a “valid” classification of the example is suggested. Thus, not only the class of the example is given, but also the reasons behind that classification are provided to the user as well in a form that is easy to grasp. We show that such an argumentation-based approach for classification offers other advantages, like for instance classifying examples even when the set of training examples is inconsistent, and considering more general preference relations between hypotheses. Moreover, we show that in the particular case of concept learning, the results of version space theory are retrieved in an elegant way in our argumentation framework.
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Dates et versions

hal-04313460 , version 1 (29-11-2023)

Identifiants

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Leila Amgoud, Mathieu Serrurier. Arguing and explaining classifications. 4th International Workshop on Argumentation in Multi-Agent Systems (ArgMAS 2007), May 2007, Honolulu, HI, United States. pp.164--177, ⟨10.1007/978-3-540-78915-4_11⟩. ⟨hal-04313460⟩
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