Abstract: Heuristic coordinator for knowledge discovery could simulate "creating intent" of cognitive psychology feature and enhanced the ability of self-cognition. With the aim to improve the cognitive feature and the performance of heuristic coordinator, the paper proposed one new heuristic coordinator algorithm, which used rule based fuzzy cognitive map to represent knowledge and to be effective inference in order to get non-association state of knowledge base for directional mining shortage knowledge in massive database. And the experiment demonstrates that the approach effective1y reduces the searching space and increases the intelligence of knowledge discovery compared with the directed hypergraph based method.

Key words: Knowledge discovery in database(KDD)，Double bases cooperating mechanism, Heuristic coordinator, Rule based fuzzy cognitive map(RI3FCM) ,Accessible matrix,Directional mining