A Generalized Multi-granulation Rough Set Approach [chapter]

Weihua Xu, Xiantao Zhang, Qiaorong Wang
2012 Lecture Notes in Computer Science  
A generalized multi-granulation rough set is proposed in this paper. In the new model, supporting characteristic function is defined and a parameter called information level is introduced to investigate that an object supports a concept precisely under majority granulations. Moreover, some important properties are discussed on the new multigranulation rough set. And it can be found that the proposed model is more valid than old multiple granulation rough set models and Pawlak rough set model.
doi:10.1007/978-3-642-24553-4_90 fatcat:km2cfd3agjfbrjwry4ujxsmhde