摘要
This paper constructs L-covering fuzzy variable precision rough set and mainly studies some properties of type I and type II L-covering fuzzy lower and upper approximation operators of L-fuzzy sets on X. Topology properties of type I and type II L-covering fuzzy lower and upper approximation operators are also discussed through a fuzzy interior operator and fuzzy closure operator. Moreover, we investigate the dual properties and compare between L-covering fuzzy variable precision rough approximation operators.
- 出版日期2017
- 单位武汉大学