一种新的混合式定性诊断推理模型

An New Hybrid Model of Qualitative Diagnostic Reasoning

国际上现有的诊断推理方法可归纳为两类：基于第一原理的定性诊断推理和基于启发式知识的定性诊断推理，由于这两种方法各有其优缺点，因此如何将两种方法有机地结合起来成为近年来该领域的研究热点。本文提出一种将第一原理与启发式知识有机结合的模型，并给出了相应的算法。

Two main approaches are used in qualitative diagnostic reasoning.These approaches are the first principle approach and the heuristic knowledge approach.Systems based on the first one can handle hard problems and new situation.On the other hand,systems based on the second perform diagnostic tasks faster but can deal only with the most common problem cases.This paper provides a model using both the deep and shallow knowledges, and presents some algorithms.