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In mathematics, fuzzy measure theory considers generalized measures in which the additive property is replaced by the weaker property of monotonicity. The central concept of fuzzy measure theory is the fuzzy measure (also ''capacity'', see ) which was introduced by Choquet in 1953 and independently defined by Sugeno in 1974 in the context of fuzzy integrals. There exists a number of different classes of fuzzy measures including plausibility/belief measures; possibility/necessity measures; and probability measures which are a subset of classical measures. ==Definitions== Let be a universe of discourse, be a class of subsets of , and . A function where # # is called a ''fuzzy measure''. A fuzzy measure is called ''normalized'' or ''regular'' if . 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「fuzzy measure theory」の詳細全文を読む スポンサード リンク
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