DocumentCode
186023
Title
Rough sets in crisp and fuzzy granular hierarchical structures
Author
Tanaka, T. ; Murai, Takashi ; Kudo, Yasuo ; Akama, Seiki
Author_Institution
Grad. Sch. of Inf. Sci. & Techlonogies, Hokkaido Univ., Sapporo, Japan
fYear
2014
fDate
22-24 Oct. 2014
Firstpage
286
Lastpage
291
Abstract
We proposed granular hierarchical structures generated from free monoids in order to provide a unified basis for various extended concepts of sets like multisets, fuzzy sets and others. In this paper, we examine rough fuzzy multisets, that is, the upper and lower approximation operators of fuzzy multisets in the framework of crisp and fuzzy granular hierarchical structures.
Keywords
fuzzy set theory; rough set theory; approximation operators; crisp granular hierarchical structures; free monoids; fuzzy granular hierarchical structures; multisets; rough fuzzy multisets; rough sets; Approximation methods; Conferences; Educational institutions; Electronic mail; Fuzzy sets; Information science; Rough sets; Crisp and fuzzy granular hierarchical structures; Empty stringizing; Rough fuzzy multisets;
fLanguage
English
Publisher
ieee
Conference_Titel
Granular Computing (GrC), 2014 IEEE International Conference on
Conference_Location
Noboribetsu
Type
conf
DOI
10.1109/GRC.2014.6982851
Filename
6982851
Link To Document