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首页> 外文会议>ICECS 2010;International conference on environmental and computer science >Variable Fuzzy Set Model for Watershed Water Safety Evaluation Based on Set Pair Analysis
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Variable Fuzzy Set Model for Watershed Water Safety Evaluation Based on Set Pair Analysis

机译：基于集对分析的流域水安全评价的可变模糊集模型

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摘要

Watershed water safety evaluation is an important part of watershed water safety management One of the difficulties in current study is to establish reasonable quantitative evaluation model in order to measure changes in watershed water safety situation. On the basis of expert consultation and investigation, the preliminary evaluation index system for watershed water safety was established and screened by accelerating genetic algorithm based fuzzy analytic hierarchy process. As a result, the final index system and associated grading standards were constructed. A new method was presented to determine the relative membership degree between assessed samples and grading standards in variable fuzzy set based on set pair analysis method. Then a new quantitative model for evaluation of watershed water safety was established, named SPA-VFS for short. The empirical research results of SPA-VFS in Chaohu watershed demonstrated that flood disaster of the watershed in the evaluation year was more serious and generally in a state of criticality safety, which indicates that investment and the total capacity of water storage projects sbould be increased, and flood control standards and degree of informationization sbould be improved in order to further enhance the safeguard degree of the watershed. SPA-VFS makes full use of evaluation information in singje index connection degree between assessed samples and grading standards. The evaluation results of SPA-VFS were reasonable and accuracy. SPA-VFS is intuitive and simple, which can be applied to various types of comprehensive evaluation problems with known grading standards.
机译：流域水安全评价是流域水安全管理的重要组成部分，当前研究的难点之一是建立合理的定量评价模型，以衡量流域水安全状况的变化。在专家咨询和调查的基础上，建立了基于模糊层次分析法的加速遗传算法，筛选了流域水安全评价指标体系。结果，构建了最终指标体系和相关的评分标准。提出了一种新的基于集对分析的方法来确定变量模糊集中被评估样本与分级标准之间的相对隶属度。然后建立了一种新的流域水安全评价定量模型，简称SPA-VFS。巢湖流域SPA-VFS的实证研究结果表明，评价年流域的洪涝灾害较为严重，总体处于临界安全状态，表明需增加投资和蓄水工程总容量，进一步提高防洪标准和信息化程度，进一步提高流域的保障水平。 SPA-VFS充分利用评估信息来评估被评估样品与分级标准之间的新指数联系程度。 SPA-VFS的评估结果合理，准确。 SPA-VFS直观而简单，可以应用于具有已知评分标准的各种类型的综合评估问题。

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