农业专家系统中分类产生式规则的知识表示方法

Knowledge expression to classifying the producing type rule in the agricultural expert system

鉴于农业专家系统中的知识多来自于专家经验,且知识规则的表示量非常大的特点,在系统开发中提出采用一种称为"分类产生式规则"的知识表示方法用于农业专家系统,该方法实质性地改进了传统的产生式规则知识表示方法,可以有效地解决基于规则的专家系统存在的知识组合爆炸和搜索匹配费用高的问题。详细介绍了该方法在系统开发中的具体应用,如定义、表示形式和具体推理模型及策略等问题。

Based on the characteristis which comes from the expertise, and the rules of knowledge expression are numerous in the agricultural expert system, this article proposes to adopt a kind of method in expert system which is called 'classifying the producing type rule ' to express the knowledge. The method has improved traditional production type rule knowledge in nature, and it can effectively solve the problems on information explosion, search for and match costly in the traditional expert system based on the rules. This article has recommended this method in details: such as how to define, expresses the rules, concrete reasoning model and tactics, and so on.