信息粒在农业专家系统中的应用

目前,产生式系统是开发农业专家系统中使用最多的知识表示方法,它设计简单,但在表示农作物生产系统的复杂性以及模糊性知识时却存在不足.信息粒化思想把大量复杂信息按照各自的特征和性能,将其划分成若干个较简单的粒,在决策表中基于粒推理求解问题.为此,将信息粒化思想引入农业专家系统开发中,证据粒表示农作物生产系统的事实性知识以及规则的前件,决策粒表示结论以及规则的后件,从而增强了专家系统的智能化程度.

Application of Information Granules in Agricultural Expert System

Production system is one of the knowledge representation systems in improving agricultural expert system.Such system is designed simply,but it works ineffectually in representing complexity and vague knowledge of the agricultural production system.By its characteristic and performance,lots of complicated information is partitioned into block which is named information granule,and it is used to solve problems in decision table.In this paper,information granule is introduced to production system and rule-based reasoning is replaced by granule-based reasoning,proof granule is used expressing fact knowledge and condition of rule,decision granule is used conclusion of rule,which strengthens intelligent degree of expert system.