Fuzzy Comprehensive Evaluation Model of Ecological Security Based on Distinguishable Weight of Indezes

摘要：

To converse membership degrees from indexes to objective is the core step in multistage fuzzy comprehensive evaluation, which is the best model of ecological security evaluation; but the existing converse algorithms of membership degrees are questionable because redundant data of membership degrees of indexes, which are useless to objective classification, are involved in calculation of membership degrees of the objective. For this case, distinguishable weight is designed through finding the information in index membership about object classification, which eliminates the redundant data and extract the effective values; Secondly, transform effective value to comparable value by importance weight of index and generate comparable sum; then calculating object membership by comparable sum. In this way, an improved fuzzy comprehensive evaluation model to security evaluation of ecological area is established without any redundant date.

关键词： ecological security fuzzy comprehensive evaluation conversion of membership degree distinguishable weight comparable values

作者: PANG Yanjun LIU Limin LI Wenguo

作者单位: College of Science,Hebei University of Engineering,Handan 056038,Hebei,China

会议类型: 国际会议

会议名称: 2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)

会议地点: 上海

会议语种:英文

页码: 99-103

在线出版日期: 2009-06-02（万方平台首次上网日期，不代表论文的发表时间）