Improved Grey Correlation-TOPSIS and Application

The author created the improved Grey Correlation-TOPSIS used it for security evaluation of petroleum resources through the integration of the following methods such as AHP, TOPSIS and Grey correlation. The improved Grey Correlation-TOPSIS replaces Euclidean distance and grey correlation with new relative approximation coefficient. Thus, this method presents more explicit physical meaning and dual baseline feature. Its application indicates that the improved Grey Correlation-TOPSIS can further promote the objectiveness and all sidedness for analysis and realize the exploration of internal law from original data to some extent. Therefore, the improved Grey Correlation-TOPSIS has certain promotion and application values.