Comparison of Granular Computing Models in a Set-Theoretic Framework

Ying Wang, Duoqian Miao

Abstract: Many granular computing models have been proposed. A set-theoretic framework for constructing granules is easy to understand. A granule is a subset of a universal set, and a granular structure is a family of subsets of the universal set. By comparing set-based granular structures, the relationships and differences among rough set modal, hierarchical multi-dimensional data model and multi-granulation rough set model are discussed in this paper.