一个具有双层推理模型的医学专家系统

介绍一个成功的、具有双层推理模型的医学专家系统及其双层模型的构造、因果关系模型深层知识的获取、推理策略以及解释功能的设计技术。双层推理模型是经验推理和致因分析深层推理相结合的联合推理模型，它克服了第一代专家系统经验推理的局限性和脆弱性以及求解策略的单一性，增强了系统求解能力，提高了系统解释功能的深度，它是第二代专家系统设计技术的一次成功的研究和探索。最后给出了具有双层推理模型的医学专家系统运行时的一个诊断实例。

A Medical Expert System with Double-Layer Reasoning Model

Introduces the following aspects of the medical expert system with a double-layer reasoning model:construction of double-layer reasoning model, deep-layer knowledge acquisition of reason-result relation analysis model, reasoning strategies and explanation function,etc. The double-layer reasoning with cause analysis reasoning of depth layer, it can surmount defects of the limitation and frailty of experienced reasoning,and the solitary of solving strategy of first generation expert system,add solving ability of system, arise depth of explanation function of system. It is a successful research and exploration of second generation expert system's design technology,and finally gives a diagnosed example of runing the medical expert system with double-layer reasoning model.