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Approach to Weighted Geometric Evaluation Based on Projection Pursuit
作者姓名:Yang Shanlin  Wang Shuo  Gong Daning
作者单位:Institute of Computer Network Systems, Hefei University of Technology, Hefei , Anhui 230009, China
基金项目:The Provincial Teaching Research Project in Anhui Institutions of Higher Education(No: 2005126)
摘    要:Weighted geometric evaluation approach based on Projection pursuit (PP) model is presented in this paper to optimize the choice of schemes. By using PP model, the multi-dimension evaluation index values of schemes can be synthesized into projection value with one dimension. The scheme with a bigger projection value is much better, so the schemes sample can be an optimized choice according to the projection value of each scheme. The modeling of PP based on accelerating genetic algorithm can predigest the realized process of projection pursuit technique, can overcome the shortcomings of large computation amount and the difficulty of computer programming in traditional projection pursuit methods, and can give a new method for application of projection pursuit technique to optimize choice of schemes by using weighted geometric evaluation. The analysis of an applied sample shows that applying PP model driven directly by samples data to optimize choice of schemes is both simple and feasible, that its projection values are relatively decentralized and profit decision-making, that its applicability and maneuverability are high. It can avoid the shortcoming of subjective weighing method, and its results are scientific and objective.

关 键 词:加速遗传算法  加权几何评估  发射追踪  客观权重
收稿时间:2005-09-21

Approach to Weighted Geometric Evaluation Based on Projection Pursuit
Yang Shanlin,Wang Shuo,Gong Daning.Approach to Weighted Geometric Evaluation Based on Projection Pursuit[J].Engineering Sciences,2006,4(1):85-88.
Authors:Yang Shanlin  Wang Shuo and Gong Daning
Institution:(Institute of Computer Network Systems,Hefei University of Technology, Hefei ,Anhui 230009,China);(Institute of Computer Network Systems,Hefei University of Technology, Hefei ,Anhui 230010,China);(Institute of Computer Network Systems,Hefei University of Technology, Hefei ,Anhui 230011,China)
Abstract:Weighted geometric evaluation approach based on Projection pursuit (PP) model is presented in this paper to optimize the choice of schemes. By using PP model, the multi-dimension evaluation index values of schemes can be synthesized into projection value with one dimension. The scheme with a bigger projection value is much better, so the schemes sample can be an optimized choice according to the projection value of each scheme. The modeling of PP based on accelerating genetic algorithm can predigest the realized process of projection pursuit technique, can overcome the shortcomings of large computation amount and the difficulty of computer programming in traditional projection pursuit methods, and can give a new method for application of projection pursuit technique to optimize choice of schemes by using weighted geometric evaluation. The analysis of an applied sample shows that applying PP model driven directly by samples data to optimize choice of schemes is both simple and feasible, that its projection values are relatively decentralized and profit decision-making, that its applicability and maneuverability are high. It can avoid the shortcoming of subjective weighing method, and its results are scientific and objective.
Keywords:weighted geometric evaluation  projection pursuit  accelerating genetic algorithm  objective weight
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