初中几何专家系统中的知识获取及实现

描述了初中几何专家系统中知识获取及实现的一般过程，指出了知识获取及实现中的难点和重点。由于研究问题的复杂性，专家系统规则库中规则量往往十分庞大，这给规则库的管理和维护带来很大不便。专家系统知识库的冗余性是影响系统运行效率和知识库维护的一个重要方面，针对一个具体的专家系统——平面几何智能解题系统，分析了关于知识库规则生成时效率低的问题，然后利用基于粗糙集的约简理论来消除和减少规则库的冗余，使得系统规则库中的规则精炼、简洁，易于维护，同时大大提高了系统的效率。

KA and Realization in Junior Middle School Geometry Expert System

Describes the generic process of KA and realization in the junior middle school geometry expert system,indicates the difficulty and stress of the process of KA and realization.Because of the complexity of research problems,rule bases on the expert system are usually huge,which brings much inconvenience for rule bases in its management and the maintenance.Redundancy of knowledgebase(KB) makes an important effect on running an expert system(ES).Aiming at a special ES,solving system for plane geomelry,the generation of KB is analyzed on its low efficiency,then eliminate and reduce redundancy of the rule base using reduction theory based on the rough set theory,it makes rule of expert system become refined,compact and tractable,and boosts the efficiency of expert system greatly at the same time.