Heuristic Attribute Reduction Algorithm to Ordered Information Systems
序信息系统的启发式属性约简算法

Attribute reduction is one of important problems in rough set theory,and attribute reductions in ordered information systems are also concerned in recent years.We first proposed a new information granulation based on dominance classes,which can be used to measure uncertainty of an attribute set in the context of ordered information systems.Using this information granulation,a definition of attribute significance was then given in ordered information systems.At last,a heuristic reduction algorithm was put fo...