Parameterized imprecise classification: elicitation and assessment

  • Authors:
  • Isabela Drummond;Sandra Sandri

  • Affiliations:
  • Instituto Nacional de Pesquisas Espaciais, SP, Brasil;Bellaterra, Spain

  • Venue:
  • IBERAMIA-SBIA'06 Proceedings of the 2nd international joint conference, and Proceedings of the 10th Ibero-American Conference on AI 18th Brazilian conference on Advances in Artificial Intelligence
  • Year:
  • 2006

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Abstract

This work is based on classifiers that can yield possibilistic valuations as output. The valuations may have been obtained from a labeled data set either directly as such, by possibilistic classifiers, by transforming the output of probabilistic classifiers or else by adapting prototype-based classifiers in general. Imprecise classifications are elicited from the possibilistic valuations by varying a parameter that makes the overall classification become more or less precise. We introduce some indices to assess the accuracy of the parameterized imprecise classifications and their reliability, thus allowing the user to choose the most suitable level of imprecision and/or uncertainty for a given application.