摘要
本文给出了一个医疗专家系统的框架结构分类树模型,包括知识的分类及其框架表示;在以框架为结点组成的分类树上进行的正反向推理机制;基于估计函数和控制项目的控制策略以及两个评价知识表示的准则。基于我们研制的经验,本文提出的接近于医学专家和医学书籍中的知识表示,便于知识获取和规范化;推理控制机构直接在框架结构上进行,直观,类似于思维过程,易于医学专家理解和接受。整个模型简单、便于医疗专家系统的开发。
This paper described a frame structure-classification tree model of medical expertsystem including knowledge classification,its frame represantation,forward and backward in-ference based on classification tree with frames as nodes,control strategy based on evaluationfunction and control items,and two princeples of knowledge representation.According to our experience,this paper presents the knowledge representation closed tothe representation of medical expert,so it is easy to acquire knowledge with specification,andreasoning control processed on frame structure-classification tree by analogy with thoughtfulprocess.Therefor it is easy to be accepted and understanded by medical expertis.The modelis simple for developing expert system.
出处
《计算机应用与软件》
CSCD
1989年第4期42-47,共6页
Computer Applications and Software
