DocumentCode :
1838670
Title :
A representation of approximate reasoning with analogy
Author :
Miyai, Kiyotaka ; Hata, Yutaka ; Yamato, Kazuharu
Author_Institution :
Dainippon Screen Manuf. Co. Ltd., Kyoto, Japan
fYear :
1993
fDate :
24-27 May 1993
Firstpage :
184
Lastpage :
189
Abstract :
A scheme of approximate reasoning with analogical inference is proposed for purpose of flexible inference. This method uses truth value [0,1] based on possibility and assigns a truth value called certainty factor (cf) ∈[0,1] to the implication AB. This inference conclusion is derived as a product of the truth value T(A) of the fact A and certainty factor cf. A scheme of analogical inference based on the concept `similar causes lead similar results´ is also introduced. This analogical inference can be done by using a degree of equivalence as a similarity between statements. The new combination rule of conclusions, which derives the supremum and the infimum of a certainty factor and determines a meaningful value by using those bounds, is described. It is clarified that the scheme can derive the inference result that is in accord with human intuition
Keywords :
formal logic; inference mechanisms; analogical inference; approximate reasoning; certainty factor; flexible inference; infimum; supremum; truth value; Couplings; Diagnostic expert systems; Fuzzy logic; Fuzzy reasoning; Fuzzy sets; Humans; Manufacturing; Medical diagnosis; Medical expert systems; Set theory;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Multiple-Valued Logic, 1993., Proceedings of The Twenty-Third International Symposium on
Conference_Location :
Sacramento, CA
Print_ISBN :
0-8186-3350-6
Type :
conf
DOI :
10.1109/ISMVL.1993.289562
Filename :
289562
Link To Document :
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