一般二元关系下信息系统知识的粒度描述

徐伟华1，刘士虎1，张文修2

Granularity representation of knowledge in information system based on general binary-relation

XU Weihua1，LIU Shihu1，ZHANG Wenxiu2

计算机工程与应用 . 2011, (18): 40 -44 .