Granular Computing Based on Rough Sets, Quotient Space Theory, and Belief Functions

Abstract. A model of granular computing (GrC) is proposed by reformulating, re-interpreting, and combining results from rough sets, quotient space theory, and belief functions. Two operations, called zoomingin and zooming-out operations, are used to study connections between the elements of a universe and the elements of a granulated universe, as well as connections between computations in the two universes. The operations are studied with respect to multi-level granulation structures.

• Type: Conference
• Year: 2003
• Where: ISMIS
• Authors: Y. Y. Yao, Churn-Jung Liau, Ning Zhong
• Keywords: Granular Computing, ISMIS 2003, Multi-level Granulation Structures, Quotient Space Theory