多准则决策分析方法优秀PPT.ppt
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1、多准则决策分析方法多准则决策分析方法第1页,本讲稿共34页多準則決策分析方法馮正民多準則決策分析方法馮正民2Why we need MCDM?The conventional single-criterion decision methods such as cost-benefit analysis can only deal with the monetary terms.The decision maker faces multiple conflicting objectives rather than single objective.The conflict nature of a
2、 problem involves several interest groups instead of a single group.Many intangible and incommensurable effects in conventional decision making methods could not be included.第2页,本讲稿共34页多準則決策分析方法馮正民多準則決策分析方法馮正民3What is MCDM?MCDM is a set of methods to help the decision makers to describe,evaluate,ran
3、k and select alternatives according to several criteria.Two main classes of methods are:MOP(multiobjective programming)MCE(multicriteria evaluation)第3页,本讲稿共34页多準則決策分析方法馮正民多準則決策分析方法馮正民4What are the components in MOP?a set of objective functions=a set of decision variables=a set of constraints=The MOP
4、 problem can be defined mathematically as follows:Subject to第4页,本讲稿共34页多準則決策分析方法馮正民多準則決策分析方法馮正民5What are the components in MCE?第5页,本讲稿共34页多準則決策分析方法馮正民多準則決策分析方法馮正民6Types of MCE第6页,本讲稿共34页多準則決策分析方法馮正民多準則決策分析方法馮正民7Weighting of Criteria AHP建立層級關係建立成對比較矩陣求解權重並檢定一致性 第7页,本讲稿共34页多準則決策分析方法馮正民多準則決策分析方法馮正民8AHP
5、(分析階層程序法分析階層程序法)第8页,本讲稿共34页多準則決策分析方法馮正民多準則決策分析方法馮正民9Weighting of Criteria AHPDeveloping Importance Comparison A=第9页,本讲稿共34页多準則決策分析方法馮正民多準則決策分析方法馮正民10Weighting of Criteria AHPChecking the Consistency of JudgementsDefine the consistency index(CI)as:Where n is the number of criteria in comparison.第10页,
6、本讲稿共34页多準則決策分析方法馮正民多準則決策分析方法馮正民11Weighting of Criteria AHPChecking the Consistency of Judgements Determine the Determine the consistency ratio(CR)consistency ratio(CR)by dividing CI by a by dividing CI by a random index(RI):random index(RI):Where RI is found as follows:Where RI is found as follows:S
7、ince we have n=3,and Since we have n=3,and thus RI=0.58,CR can be thus RI=0.58,CR can be computed as:computed as:第11页,本讲稿共34页多準則決策分析方法馮正民多準則決策分析方法馮正民12Computing the Scores of AlternativesSAWSAWThrough SAW,we can get the scores of three alternatives:Since ,we therefore select .第12页,本讲稿共34页多準則決策分析方法馮正
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