一种改进的基于结构抽象的分层模型诊断方法

基于分层模型诊断算法, 提出一种改进的方法, 对每层进行抽象时, 根据分层表示和抽象条件, 同时实现固定和动态两种抽象过程. 该方法进一步解决了基于模型诊断计算复杂性的问题. 在最终抽象层候选空间相同的前提下, 减少了分层的层次数和诊断问题的个数； 在一定条件下, 第l(l>0)层的诊断可以不必细化到最底层, 即可得到最终的诊断结果. 实验结果表明, 该算法在多数情况下比以往的分层模型诊断
方法效率更高.

An Improved Method for Hierarchical Model-based Diagnosis Based on Structural Abstraction

An improved method for hierarchical model-based diagnosis is proposed based on the work of Chittaro and Ranon.Two abstract processes are achieved simultaneously according to hierarchical representation and abstract condition when a new abstract level is derived.One is a fixed abstract process and the other is an automatic process.The computational complexity for modelbased diagnosis is further decreased by means of the method.Additional levels are minimized and the number of a diagnosis problem is reduced o...