December 3 - December 6, 2020 / Web Conference
International Symposium on the Analytic Hierarchy Process
Three developments of the Analytic Hierarchy Process:Calibrated Fuzzy AHP, AHPSort and GAHPO
Analytic Hierarchy Process (AHP) is a popular multi-criteria decision making technique. In this talk, I will present three further developments:a) Fuzzy AHP is a hybrid method that combines Fuzzy Set Theory and AHP. It has been developed to take into account uncertainty and imprecision in the evaluations. Fuzzy Set Theory requires the definition of a membership function. At present, there are no indications of how these membership functions can be constructed. In this paper, a way to calibrate the membership functions with comparisons given by the decision-maker on alternatives with known measures is proposed. This new technique is illustrated in a study measuring the most important factors in selecting a student current account.b) The analytic hierarchy process (AHP) is a useful and widespread method for solving choice and ranking problems. However, it is not adapted for sorting problems. Moreover, another practical limitation of AHP is that a high number of alternatives implies a large number of comparisons. This paper presents AHPSort, a new variant of AHP, used for the sorting of alternatives into predefined ordered categories. AHPSort requires far less comparisons than AHP, which facilitates decision making within large-scale problems. In this paper, a real case study for supplier selections used to illustrate our approach.c) The third development is the Group Analytic Hierarchy Process Ordering (GAHPO) method: a new multi-criteria decision aid (MCDA) method for ordering alternatives in a group decision. The problem is separated in two hierarchies for a cost and a benefit analysis. From these two analyses, a partial ordinal ranking can be deduced, where three relations between alternatives exist: the preference, indifference, and incomparability. A complete cardinal ranking can also be deduced by dividing the score of the benefit analysis by the score of the cost analysis. GAHPO has been developed to solve a real case: a selection of new production facilities with multiple stakeholders.
Alessio Ishizaka is Head of the Information Systems, Supply Chain and Decision making department and Full Professor in Decision Analysis at NEOMA Business School. He received his PhD from the University of Basel (Switzerland). He worked successively for the University of Exeter (UK), University of York (UK) and Audencia Grande Ecole de Management Nantes (France) and University of Portsmouth (UK). His research is in the area of decision analysis, where he has published more than 100 papers. He is regularly involved in large European funded projects. He has been the chair, co-organiser and guest speaker of several conferences on this topic. Alongside his academic activities, he acts as a consultant for companies in helping them to take better decisions. He has written the key textbook Multicriteria Decision Analysis: methods and software.
AHP/ANP: Issues and Insights for the Future
AHP/ANP provide a comprehensive procedure for capturing the intensities of different properties on a ratio scale and then combining multiple such scales into a meaningful multi-criteria decision. The ratio feature, ease of use, and flexibility to measure many phenomena has allowed AHP/ANP to become the dominant MCDM procedure. Insights from the evolution of the techniques will be used to highlight issues that may be useful for the future. The nature of ratio intensities will be emphasized.
Bill Wedley is Professor Emeritus at the Beedie School of Business, Simon Fraser University, Vancouver, Canada where he specialized in operations management and decision making. His prime area for research, publication and collaboration has been with ratio measurement for multi-criteria decisions, particularly the Analytic Hierarchy and Network Processes. His BComm in business is from the University of British Columbia and his MBA and PhD degrees are from Columbia University, New York.Prior to joining Simon Fraser University, he was at the University of Libya at Benghazi. He has lectured around the world and has held visiting positions at the Henley Business School (UK), Monash University (Australia), National Institute of Management Studies (Thailand), Narsee Monjee Institute of Management Studies (India), and the International Management Center (Hungary). He is Past President of the Administrative Sciences Association of Canada and he has been an active organizer for the Society of Multiple Criteria Decision Making and the International Symposium for the Analytic Hierarchy Process.
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