no code implementations • 18 May 2022 • Wei Li, Bin Yang, Junsheng Qiao
In this paper, the depiction of $(O, G)$-granular variable precision fuzzy rough sets ($(O, G)$-GVPFRSs for short) is first given based on overlap and grouping functions.
no code implementations • 13 May 2022 • Wei Li, Bin Yang, Junsheng Qiao
In this paper, we mainly construct three types of $L$-fuzzy $\beta$-covering-based rough set models and study the axiom sets, matrix representations and interdependency of these three pairs of $L$-fuzzy $\beta$-covering-based rough approximation operators.