一类基于认知心理特征的知识发现新模型  

A type of knowledge discovery model based on cognitive psychology features

作　　者：杨炳儒[1] 杨珺[1] 唐志刚[1] 

机构地区：[1]北京科技大学信息工程学院,北京100083

出　　处：《高技术通讯》2009年第4期391-397,共7页Chinese High Technology Letters

基　　金：国家自然科学基金(69835001;60675030);国家教育部科技重点项目(教技司[2000]175);北京市自然科学基金(4022008)资助项目

摘　　要：为克服数据挖掘过程中的“数据海量，算法复杂”的困扰，建立了两个用于在知识发现系统与过程中模拟认知心理特征的协调器——启发型协调器和维护型协调器，从而实现了系统自主地发现知识短缺和进行知识库的实时维护；创建了双库协同机制，它揭示了数据库与知识库在特定构造下，两个范畴间的等价关系（即结构对应定理）；并将这两个协调器和双库协同机制融入经典的数据库中的知识发现（KDD）过程模型，诱导出新的知识发现过程模型——KDD“和基于数据库和知识库双库数据挖掘（KD（D＆K））过程模型，实现了“定向搜索”与“定向挖掘”。最后通过实例验证了其有效性与先进性。To solve the problem of ＂data rich and algorithm complex＂ in knowledge discovery, a heuristic coordinator and a maintenance coordinator were proposed to simulate cognitive psychology characters in knowledge discovery systems and processes, so as to make a system discover knowledge shortages independently and maintain knowledge bases in realtime; the double-base cooperating mechanism, which can reveal the equivalence relationship between two categories （i. e. the structure corresponding theorem） in knowledge discovery under the conditions that databases and knowledge bases are specially constructed, was constructed; by incorporating the two coordinators and the double-base cooperating mechanism into the classical knowledge discovery in database （KDD） process model, the KDD＊ model for knowledge discovery and the KI） （D＆K） （knowledge discovery in real database and knowledge base） process model were proposed, so the way for directional searching and directional mining was implemented. Finally, the validity was verified by experiment.

关 键 词：知识发现 启发型协调器 维护型协调器 双库协同机制 KDD~* KD(D&K) 

分 类 号：TP182[自动化与计算机技术—控制理论与控制工程]