Index selection method based on grey wolf optimization algorithm

Abstract

The invention discloses an index selection method based on a grey wolf optimization algorithm. The method comprises the steps of determining that N indexes exist in a mine technology evaluation index set; determining the form of a population vector according to the N indexes, wherein the population vector represents a selection method of the mine technology evaluation indexes, xi can only be 0 or 1 and represents whether the ith index in the mine technology evaluation index set is put into an index system or not, 0 represents no putting, and 1 represents putting; and solving the optimal solution of the mine technology evaluation index according to an improved grey wolf optimization algorithm, namely, judging whether the value of each dimension in the vector with the minimum fitness value is 1 or not according to the vector with the minimum fitness value, if the value of each dimension is 1, selecting a corresponding index to be put into the index system, otherwise, not putting the index into the index system, so that the construction of the index system is completed. The method is easy and convenient to operate by a user, the speed is higher than that of a basic algorithm, the accuracy is higher, and the user can be smoothly helped to evaluate technical indexes.

Description

technical field [0001] The invention relates to an index selection method. In particular, it involves an index selection method based on the gray wolf optimization algorithm Background technique [0002] The technical evaluation of the mine is to obtain the technical parameters that can fully reflect the mine situation after analyzing the data obtained after various survey work in the mine, predict the economic value and social benefits of future mine development and utilization, and provide a basis for the development of mine projects. Investing provides a scientific basis. [0003] In mine technology evaluation, the establishment of index system is the premise and basis for technology evaluation. However, the traditional establishment method of the index system is based on the past experience and judgment of experts, which will lead to the designer of the index often one-sidedly pursue the comprehensive performance of the index system, attempting to include all factors i...

AI Technical Summary

Problems solved by technology

However, the traditional establishment method of the index system is based on the past experience and judgment of experts, which will lead to the designer of the index often one-sidedly pursue the comprehensive performance of the index system, attempting to include all factors in the index system, resulting in too many indicators and mutual interaction among indicators. Overlapping, this behavior not only causes the illusion and confusion of expert judgment, but also leads to the reduction of index weight, distortion of index structure, and distorts the real information in terms of direction and quantity, making people raise questions about the objectivity and effectiveness of evaluation. question

Images