基于双层因果网络的鱼病诊断模型及其应用  

A Fish-Disease Diagnosis Model Based on Double Causal Network

作　　者：温继文[1] 傅泽田[2] 李道亮[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：《湖南农业大学学报（自然科学版）》2006年第2期214-218,共5页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：国家"863"高技术研究发展项目(2002AA243031)

摘　　要：通过分析鱼病传播的因果关系,构建了“症状—疾病—病因”的鱼病诊断模型,并转化为“症状—疾病”和“疾病—病因”的集合问题,采用模糊数学和覆盖集理论以及现代优化算法求解.通过实例证明,该模型可以得到有效的疾病范围、疾病发生可能性和相应的病因分析,诊断结论可以指导用户有针对性地进行鱼病防治.On the basis of analyzing the mechanism that fish-diseases arise and diffuse, a double cause-and-effect network diagnostic model that reflected the relationship of manifestation, disease and cause, was constructed. Fish-disease diagnostic problem was transformed into aggregation problem; fuzzy theory, parsimonious covering model and modern optimization algorithm were adopted to resolve the model. Finally, useful information could be obtained to assist diagnosis; to determine ranges of disease, to carry out the judgement of generant tendency and relevant pathogens, and diagnostic conclusion could be applied user to prevent and cure fish-diseases.

关 键 词：双层因果网络 鱼病诊断 节约覆盖集 禁忌搜索 

分 类 号：TP182[自动化与计算机技术—控制理论与控制工程] TP387[自动化与计算机技术—控制科学与工程]