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Title

A logical approach to case-based reasoning using fuzzy similarity relations

AuthorsPlaza, Enric ; Esteva, Francesc ; García-Calvés, Pere ; Godo, Lluis ; López de Mántaras, Ramón
Issue Date1998
PublisherElsevier
CitationInformation Sciences 106: 105- 122 (1998)
AbstractThis article approaches the formalization of inference in Case-based Reasoning (CBR) systems. CBR systems infer solutions of new problems on the basis of a precedent case that is, to some extent, similar to the current problem. Using the logics developed for similarity-based inference we characterize CBR systems defining what we call the Precedent-based Plausible Reasoning (PPR) model. This model is based on the graded consequence relations named approximation entailment and proximity entailment. A modal interpretation is provided for the precedent-based inference where the plausibility is given by the graded possibility operator ◇α-The PPR model shows that both knowledge-intensive CBR systems and the nearest neighbor algorithms share a common core formalism and that their difference is on whether or not (respectively) they use a general theory in addition to the precedent cases. © 1998 Elsevier Science Inc. All rights reserved.
URIhttp://hdl.handle.net/10261/60486
DOI10.1016/S0020-0255(97)10008-1
ISSN0020-0255
Appears in Collections:(IIIA) Artículos
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