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Constructing the PAHP-based Decision Support System by Considering the Ambiguity in Decision Making. Norihiro Saikawa Department of Computer and Information Science Hosei University 3-7-2 Kajino-cho, 184-8584, Japan. Outline. Outline. Introduction to AHP A Problem in AHP - PowerPoint PPT Presentation
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Constructing the PAHP-based Decision Support System by Considering the Ambiguity in Decision MakingNorihiro SaikawaDepartment of Computer and Information ScienceHosei University3-7-2 Kajino-cho, 184-8584, Japan
Outline Introduction to AHP
A Problem in AHP
Solving the problem by PAHP
Comparing the performance between AHP and PAHP
Conclusions & future work
Outline Constructing the PAHP-based Decision Support System Considering the Ambiguity in Decision Making2/16
Introduction to AHP AHP = Analytic Hierarchy ProcessConstructing the PAHP-based Decision Support System Considering the Ambiguity in Decision Making3/16Introduction to AHP (1/3) GoalCriterion
How to obtain the importance 4/16Pairwise comparisonIntroduction to AHP (2/3) Constructing the PAHP-based Decision Support System Considering the Ambiguity in Decision Making
The ratio scale of preference (Saaty)5/16Introduction to AHP (3/3) Constructing the PAHP-based Decision Support System Considering the Ambiguity in Decision MakingA (column) is compared to B (row)
A problem in AHP6/16A problem in AHP (1/2) Constructing the PAHP-based Decision Support System Considering the Ambiguity in Decision Makingn-1nP19
Solving the problem by PAHP7/16Constructing the PAHP-based Decision Support System Considering the Ambiguity in Decision MakingX1X2n-1nP19Solving the problem by PAHP (1/6)
Difference of the process8/16Solving the problem by PAHP (2/6) Make a problem hierarchyDo pairwise comparisonThe importance of each criterion is calculated C.I < 0.1 C.R. < 0.1YesNoAHPConstructing the PAHP-based Decision Support System Considering the Ambiguity in Decision Making
Concept of response value (R)9/16Solving the problem by PAHP (3/6) Constructing the PAHP-based Decision Support System Considering the Ambiguity in Decision MakingRatio scale of preference by SaatyResponse value (R)A (column )B (row)Correspondence of the ratio scaleof preference and the response valueA screen shot of how to apply ratio scale of preference
How to input users degree of confidenceConstructing the PAHP-based Decision Support System Considering the Ambiguity in Decision Making10/16Solving the problem by PAHP (4/6) 17 kinds of verbal expressions to measure the degree of confidence
How to estimate the ambiguity11/16Solving the problem by PAHP (5/6) L: The lower limit of the users true preferenceU: The upper limit of the users true preferenceConstructing the PAHP-based Decision Support System Considering the Ambiguity in Decision Making
How to estimate users true preference12/16Solving the problem by PAHP (6/6) Constructing the PAHP-based Decision Support System Considering the Ambiguity in Decision Making
Comparing the performance between AHP and PAHP (1/3)13/16 We simulated the process of pairwise comparisonin the AHP and PAHP and compared the performance with each other in terms of consistency and stability.
As a result, we found that the PAHP outperforms the AHP when the user is confident about solving the confronting problem. Comparing the performance between AHP and PAHP (1/3)Constructing the PAHP-based Decision Support System Considering the Ambiguity in Decision Making
Comparing the performance between AHP and PAHP (2/3)14/16Comparison in terms of consistencyComparing the performance between AHP and PAHP (2/3)Constructing the PAHP-based Decision Support System Considering the Ambiguity in Decision Making
Comparing the performance between AHP and PAHP (3/3)Comparison in terms of stability15/16Comparing the performance between AHP and PAHP (3/3)Constructing the PAHP-based Decision Support System Considering the Ambiguity in Decision Making
Graph2
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The index of the scale
Average total failure raet of preference
The average total failure rates of different scales (%)
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The index of the scale
Average total failure of preference
The average total failure of each scales
Sheet3
MBD0006E88C.xls
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scale3
scale4
scale5
scale6
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scale10
scale11
scale12
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scale17
The number of criterion
Total failure rate
Total failure rates for different scales
Sheet1
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Graph2
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scale1
scale2
scale3
scale4
scale5
scale6
scale7
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scale9
scale10
scale11
scale12
scale13
scale14
scale15
scale16
scale17
The number of criterion
Total failure rate
Total failure rates of different scales (%)
Sheet1
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Conclusions & future workConclusions & future work16/16The advantage of using PAHP:
Necessary improvement of PAHP:
Being able to estimate the preference of the user more precisely than AHP To apply the decision time of the user in the process of pairwise comparison to estimate the confidence more precisely.Constructing the PAHP-based Decision Support System Considering the Ambiguity in Decision Making