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Chapter 9: Classification and Ranking Belief Simplex
The Classification and Ranking Belief Simplex (CaRBS), introduced in Beynon (2005a), is a technique for the analysis of objects each described by a number of characteristic values. With its mathematical foundation based on Dempster–Shafer theory (DST – Dempster, 1968; Shafer, 1976), its operation is in the presence of ignorance through uncertain reasoning (Chen, 2001). Moreover, when used as a classification tool, the original CaRBS classifies objects to, some hypothesis, its complement and a level of local ignorance.
Early applications of CaRBS include bank credit ratings (Beynon, 2005b) and ranking long-term care systems (Beynon and Kitchener, 2005). One noticeable feature of CaRBS is the graphical presentation of the intermediate and final results from its analysis using the simplex plot ...