Research on index weight based on improved Grey Relational Analysis

Grey Relational Analysis is an method of analysis and calculate the relational degree of evaluated object, which can characterize the relational degree between object with viral object. Based on the traditional Grey Relational Analysis method, an improved method of accounting Grey relational Analysis coefficient and Grey Relational Analysis degree is introduced. Through calculating relational degree of index-object, can obtain the relational matrix of index. It can characterize the relational degree of index, so as to obtain the index weight.