A Consistency Approximation and Weight Calculation Metho of the Interval Complementary Judgment Matrix (ID: 6-165)

摘要

The reciprocal judgment matrix based on interval number has received domestic and foreign scholar's attention and the research about the interval number reciprocal judgment matrix ordering theory have also made some progress, but the research about the interval number complementary judgment matrix does relative few. In this paper, a new consistency approximation and ranking method for interval fuzzy complementary judgment matrix based on the definition of the consistency fuzzy judgment matrix is proposed, this method carries on the consistency approximation; construct the consistency fuzzy complementary judgment matrix by using the judgment matrix information fully. Then obtain the ranking vector of interval number complementary judgment matrix according to the ordering formula of fuzzy judgment matrix and the error propagation formula. Then choose the best alternative by ordering vector. In the end, an example is presented to illustrate the proposed method.