云南省稻瘟病,小麦锈病预测专家系统

基于稻瘟病、小麦锈病预测领域专家知识,以及借助模式识别势函数法实现的自学习、自提取的知识,采用正向和反向精确推理控制策略,首次建立云南省水稻穗瘟病、小麦条锈病预测专家系统,1994～1995年预测结果与实际情况基本一致。系统创造性地采用全屏幕编辑树图的知识输入法和森林表示技术对知识库进行管理,便于知识库的扩充和维护。推理结果、推理路径及知识查询以彩色图形方式显示,对于学习领域专家的实践经验具有独特优点。

EXPERT SYSTEM OF RICE-WHEAT DISEASE FORECAST IN YUNNAN PROVINCE

Based on the empirical knowledge of experts in rice and wheat disease forecast and self-learn, self-pick-up knowledge from model identification function method, we established the Yunnan Rice-Wheat Disease Forecast Expert System for the first time. The control strategy of two-directional precise inference was also employed in the system. The forecast result mostly agreed with the actual situation in 1994 - 1995. The distinct features of the system are; (l)The reasoning process is entirely automatic. The forecast result and the explanation of the inference route and knowledge-look-up are showed by color images. It is direct and easy to be learned and operated. (2)The system adopted full screen edit tree input method and forest expression technique. It is convenient for the extension of the knowledge-base and the maintenance. (3)The content of the system is rich and practical.