Picture fuzzy rough sets: Some new basic propositions
Bùi Công Cường, Lê Văn Hùng, Pham Van Chien · 2017
Many definitions of fuzzy rough sets exist. Most of them are defined on fuzzy approximation spaces. In this paper, we firstly introduce the notion of picture fuzzy approximation space and functional and set approaches are used. Some new picture fuzzy rough sets are proposed. Presented new basic propositions should be useful for knowledge discovery in the picture fuzzy information systems.