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单词 Rough set theory
释义

Rough set theory

中文百科

粗集合 Rough set

(重定向自Rough set theory)

粗糙集(rough set),又称粗集合。在粗糙集理论中,明确集(crisp set)是指传统的集合,而粗糙集则用于对明确集进行形式上的逼近,即给出该明确集的上逼近集下逼近集。此理论最初由波兰数学家Zdzisław I. Pawlak所描述,也被视为标准的粗糙集理论。在这标准理论中,上逼近集和下逼近集都是明确集,而在其它一些版本的粗糙集理论中则是模糊集。

英语百科

Rough set 粗集合

(重定向自Rough set theory)

In computer science, a rough set, first described by Polish computer scientist Zdzisław I. Pawlak, is a formal approximation of a crisp set (i.e., conventional set) in terms of a pair of sets which give the lower and the upper approximation of the original set. In the standard version of rough set theory (Pawlak 1991), the lower- and upper-approximation sets are crisp sets, but in other variations, the approximating sets may be fuzzy sets.

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更新时间:2025/6/22 9:52:21