According to the query of Baidu Academic Network, entropy weight method is an objective weighting method. It calculates the information entropy of the index and determines the weight of the index according to the influence of the relative change of the index on the whole system. Indicators with relatively large changes have relatively large weights. This method is widely used in statistics and other fields, and has strong research value. However, with the development of society and the progress of science, the complexity of our research problems is getting higher and higher, and the traditional entropy method can not fully meet the needs of research, so it appears.

Entropy method refers to a mathematical method used to judge the dispersion degree of indicators. The greater the degree of dispersion, the greater the influence on the comprehensive evaluation of this index. Entropy can be used to judge the degree of dispersion of an index. Entropy is a unit of measurement of a certain amount of heat energy that cannot do work in a closed thermal system. Entropy method is a method to determine the weight according to the reliability of information reflected by indicators.