摘要
熵是热力学中的重要概念,表示一个信息源发出信号状态的不确定程度。熵权表明某指标在决策或评估问题中提供有用信息量的多少,即指标的相对重要程度。本研究介绍熵权的基本概念、性质,分析其在环境监测优化布点应用中的独到之处,建立熵权多目标决策优选模型,并应用于某市大气环境监测优化布点。案例分析结果表明,该优选模型在污染因子权重分析中优选结果合理。
Entropy,one of the important concepts in thermodynamics,indicates the uncertain degree of a signal from the information source, while entropy weight indicates the relatively important degree of a index in the multi-object decision.It is introduced the concept of entropy weight, property, analysis of its originality in the application to the optimization of environmental monitoring sites,and the entropy multi-object decision model is set up,which is proved to be feasible and reasonable in the case study.
出处
《环境工程》
CAS
CSCD
北大核心
2007年第1期61-63,共3页
Environmental Engineering
基金
福建省教委资助项目环境影响经济评价研究(JA2000158)
关键词
熵权
多目标决策
优化布点
环境监测
entropy weight, multi-object decision and optimal number of sites
