基于主成分分析的河流健康指标权重分配研究

Study on the weight distribution of river health index based on principal component analysis

河流健康是生态环境保护工作的重要内容,合理评估河流健康状况需要恰当的评价体系与指标权重分配。针对权重分配中难以权衡的问题,综合运用主客观赋权法,先基于主成分分析得到一种权重,再利用改进的AHP与熵值法得到一种权重,在不满足一致性的条件下,构造一种基于博弈论思想的集合赋权法得出最终权重,可以较好的包含各种权重分配方法的信息。

River health is an important part of the ecological environment protection.It is necessary to evaluate the health status of rivers and to evaluate the distribution of index weight.For it is difficult to balance the weight distribution problems in the comprehensive use of subjective and objective weighting method based on principal component analysis to get a weight,then get a weight by AHP and improved entropy method,in the inconsistent conditions,construct a game theory set weighting method obtains the final weight based on can good information contains a variety of weight allocation method.