鱼病诊断专家系统中概念模型的构建  

A conceptual model in fish disease diagnosis expert system

作　　者：温继文[1] 李道亮[2] 傅泽田[2] 张小栓[2] 

机构地区：[1]北京林业大学经济管理学院,北京100083 [2]中国农业大学教育部现代精细农业系统集成技术重点实验室,北京100083

出　　处：《农业系统科学与综合研究》2006年第3期208-211,共4页System Sciemces and Comprehensive Studies In Agriculture

基　　金：国家"863"计划项目(2002AA243031);霍英东青年教师基金项目(94032);江苏高校省级重点实验室开放基金

摘　　要：概念模型是对真实世界的抽象描述,严格、完备的概念模型在领域专家与开发人员的沟通过程中起重要作用。在统一界定诊断和诊断问题定义的基础上,将现实世界的鱼病诊断系统进行高度抽象,对鱼病诊断问题、诊断知识和诊断求解方式等进行提炼,将鱼病诊断问题定义为包括诊断对象、疾病集、病因集、症状集、诊断知识、诊断表现、诊断推理及诊断结论等8个因素在内的数学模型,将鱼病诊断知识描述为病因、疾病、症状及其三者之间的因果网络模型,将诊断求解方式分解为获取症状—推理诊断—增加信息3个步骤循环反复的“假设—验证”过程。该概念模型的构建为鱼病诊断专家系统的开发提供了知识表示和推理的理论基础。参8。Conceptual model is an abstract description for real world. It is important to construct a strict and self-contained conceptual model in the process of information exchange between domain exports and developers. In this paper, fish disease diagnosis in the real world is distinguished and identified, diagnosis problem, diagnosis knowledge and diagnosis mode are abstracted. Fish-disease diagnosis problem is defined as a mathematics model including 8 factors, such as object, disease set, cause set, manifestation set, knowledge, display and conclusion. Diagnosis knowledge is described as a causal network model including cause, disease and manifestation. Resolve method is analyzed as a cycling process of obtaining-reasoning-adding information. In the last, a conceptual model for fish disease diagnosis is constructed. It can provide important theory basis for the construction of Fish Disease Diagnosis Expert System （FDDES） .

关 键 词：鱼病诊断 专家系统 概念模型 

分 类 号：S941[农业科学—水产养殖] TP182[农业科学—水产科学]