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For example, suppose Alternative i is "Car i", Criterion j is "Engine Quality" assessed by five grades {Excellent, Good, Average, Below Average, Poor}, and "Car i" is assessed to be “Excellent” on "Engine Quality" with a high degree of belief (i.g. 0.6) due to its low fuel consumption, low vibration and high responsiveness. At the same time, the quality is also assessed to be only “Good” with a lower degree of belief (i.g. 0.4 or less) because its quietness and starting can still be improved. If this is the case, then we have Xij={(Excellent, 0.6), (Good, 0.4)}, or Xij={(Excellent, 0.6), (Good, 0.4), (Average, 0), (Below Average, 0), (Poor, 0)}. A conventional Decision Matrix is a special case of belief decision matrix when only one belief degree in a belief structure is 1 and the others are 0. SEE ALSO MCDA Belief Structure The Evidential Reasoning Approach REFERENCES Shafer, G.A. (1976), Mathematical Theory of Evidence, Princeton University Press. Yang, J.B., and Singh, M.G. (1994), An evidential reasoning approach for multiple attribute decision making with uncertainty, IEEE Transactions on Systems, Man, and Cybernetics, Vol. 24, 1-18. J. B. Yang and D. L. Xu, “On the evidential reasoning algorithm for multiattribute decision analysis under uncertainty”, IEEE Transactions on Systems, Man, and Cybernetics - Part A: Systems and Humans, Vol.32, No.3, pp.289-304, 2002. |
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