系统结构有序度负熵评价模型的改进

Improvement of Evaluation Models of Order Degree of System Structure by Means of Negative Entropy

熵概念被广泛用来评价系统结构的有序度,其中的经典模型“负熵评价模型”存在两方面不足。本文引入联合熵和加权熵概念对负熵评价模型进行改进,提出两个评价系统结构有序度的模型:联合信息熵评价模型和加权联合信息熵评价模型。并辅以实例计算。

The concept of entropy is widely used to evaluate the order degree of system structure. As a classical evaluation model of order degree of system structure, the Negative Entropy Measurement Model needs to be modified on two issues. In this paper, the concept of joint entropy and weighted entropy are employed to rectify the above model, by which two improved models are obtained, namely ＂Evaluation Model by means of Union Information Entropy＂ and ＂Evaluation Model by means of Weighted Union Information Entropy＂. An example is used to demonstrate the application of the two models.