兰州大学学报（自然科学版）
蘭州大學學報（自然科學版）
란주대학학보（자연과학판）
JOURNAL OF LANZHOU UNIVERSITY（NATURAL SCIENCES）
2014年
2期
245-250
,共6页
粗糙集%覆盖粗糙集%决策理论粗糙集
粗糙集%覆蓋粗糙集%決策理論粗糙集
조조집%복개조조집%결책이론조조집
rough set%covering rough set%decision-theoretic rough set
经典的多粒度决策理论粗糙集是基于论域上的等价关系而建立的，然而在实际应用中等价关系很难得到和把握。本文结合多粒度决策理论粗糙集模型，基于覆盖粗糙集理论提出了基于覆盖的多粒度决策理论粗糙集理论，推广了前人的工作。
經典的多粒度決策理論粗糙集是基于論域上的等價關繫而建立的，然而在實際應用中等價關繫很難得到和把握。本文結閤多粒度決策理論粗糙集模型，基于覆蓋粗糙集理論提齣瞭基于覆蓋的多粒度決策理論粗糙集理論，推廣瞭前人的工作。
경전적다립도결책이론조조집시기우론역상적등개관계이건립적，연이재실제응용중등개관계흔난득도화파악。본문결합다립도결책이론조조집모형，기우복개조조집이론제출료기우복개적다립도결책이론조조집이론，추엄료전인적공작。
Multigranulation decision-theoretic rough set was established based on the equivalence relation of the universe. However, the equivalence relation has been diffcult to obtain in its applications. This article aimed at improving multi-granulation decision-theoretic rough sets by means of covering rough sets theory, and the covering-based multigranulation decision-theoretic rough sets models were proposed and discussed. Some previous works were generalized too.
