Centre for Operational Research and Logistics

Events and Seminars

Research Seminar

Scale calibration in AHP

Analytic Hierarchy Process (AHP) is an established multi-criteria decision making method for ranking problems. Evaluations are given on a verbal scale and then converted into quantitative values for calculating the priorities of the criteria and alternatives. Several conversion scales have been proposed, which confuses the decision-maker. In order to select the best matching scale according to the mental representation of the verbal scale of each individual decision-maker, verbal scales are first used to compare alternatives with known measures, e.g. surface of figures. The best matching scale representing the real values is then selected. This AHP with individualised scales has been applied in a real case study to select cloud computing strategies.

Biography: Dr Ishizaka is a Reader at the University of Portsmouth. He holds a PhD in Information Systems (University of Basel), a degree in Business (University of Basel) and a master degree in Electronic-Physics (University of Neuchâtel). Before joining Portsmouth Business School, he worked at the University of Neuchâtel, the University of Basel, Dynasystem AG, the University of Exeter, Audencia Grande Ecole de Commerce and the University of York. Dr Ishizaka has been a visiting professor at the Univeristät Mannheim, Università degli Studi di Moden e Reggio Emilia, University of Aix-Marseille, Università degli Studi della Tuscia, Università degli Studi di Torino, Università degli Studi di Padova and Univertät der Bundeswehr Hamburg.


Dr Alessio Ishizaka, Portsmouth Business School, University of Portsmouth


Dennis Sciama Building, DS 1.04

Date and Time

Wed, 26 Nov 2014, 13:15 - 15:00 (BST)

For further information or any enquiries please contact our event co-ordinator, Jana Ries, at corl@port.ac.uk