基于作物生长模型的农业专家系统中知识表示及管理的研究

Research on Knowledge Representation and Management in Agriculture Expert System Based on Crop Growth Models

基于作物生长模型的农业专家系统中,采用“模型字典+系统变量”对于作物生长模拟模型这类过程性知识进行表示,采用“描述框架+规则组”对问题域进行知识表示,解决了作物生长模拟模型与农业专家系统的有机结合,使农业专家系统具有动态的科学决策能力.基于这种知识表示技术,设计实现了基于作物生长模型的农业专家系统中的知识管理子系统,并给出知识管理子系统中因素分类、知识检测与求精和知识发现等构件的实现方法.

In Agriculture Expert System based on ables＂ describes the process knowledge of crops crops growth model, ＂model dictionary ＋ system vailgrowth model, ＂Description frame ＋ Rule group＂ is used to reflect the factors in the question fields. It is a good way to connect crops growth simulator model with the AES enabling AES to make dynamic and scientific decisions. Based on this knowledge representation, the authors design and realize the knowledge management subsystem of AES based on crops growth simulator model, and also present the realizing methods of factors classifying, knowledge inspecting, knowledge refinement and knowledge discovery component in knowledge ma,agement subsystem.