基于非负矩阵分解的水量分配方案后评价

发布时间：2018-12-16 15:15

【摘要】：提出了水量分配方案后评价指标体系,建立了基于非负矩阵分解的水量分配方案后评价模型,并以1983年国务院批复的引滦水量分配方案为研究对象进行了水量分配方案诊断式后评价。该方法利用非负矩阵分解算法将指标矩阵最大程度分解为基向量和权向量,根据权向量元素的数值对水量分配方案进行评级,根据基向量元素的数值判断评价指标的实施状况。通过对引滦水量分配方案质量、实施过程、实施效果和可持续性的调查分析,得出方案综合后评价结果为优,但在来用水可持续性、对水环境影响及水质目标保证率等方面需加以改进。评价结果表明,基于非负矩阵分解原理的后评价方法评价效果较好,可为水量分配方案等项目的后评价提供科学依据。
[Abstract]:The post-evaluation index system of water allocation scheme is put forward, and the post-evaluation model of water allocation scheme based on non-negative matrix decomposition is established. Based on the water diversion scheme approved by the State Council in 1983, the post-evaluation of water diversion scheme was carried out. In this method, the index matrix is decomposed into base vector and weight vector to the maximum extent by using non-negative matrix decomposition algorithm. The water allocation scheme is rated according to the value of the weight vector element, and the implementation of the evaluation index is judged according to the value of the basis vector element. Through the investigation and analysis of the quality, implementation process, implementation effect and sustainability of the water diversion water allocation scheme, it is concluded that the comprehensive post-evaluation results of the scheme are excellent, but the water use sustainability in the coming project is good. The influence of water environment and the guarantee rate of water quality target should be improved. The evaluation results show that the post-evaluation method based on the principle of non-negative matrix decomposition is effective and can provide a scientific basis for the post-evaluation of water allocation projects.
【作者单位】：武汉大学水资源与水电工程科学国家重点实验室;
【基金】：湖北省水利重点科研项目(HBSLKY201612)~~
【分类号】：TV213

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