TOPSIS method is also called approx

TOPSIS method is also called approximate ideal solution ranking method. TOPSIS method is a commonly used comprehensive evaluation method, which can make full use of the information of original data and its results can accurately reflect the gap between evaluation schemes.Basic process first to original data matrix unified index type (generally positive processing) get a positive matrix, matrix standardizing of the forward again in order to eliminate the influence of the various indicators dimension, and to find the optimal solution of finite solution and the worst solution, then calculate the evaluated object and the optimal solution and the distance between the worst plan,The relative proximity between each evaluation object and the optimal scheme is obtained as the basis of evaluation.