A Generalized DEA Model with Grey Decision Units and Its Drift Type Solution
Based on the generalized DEA method and gray system theory,the generalized gray DEA model with constant sample units and stochastic decision making units is con-structed and conducted preliminary research.The optimal solution of the model is solved by using interval gray number whitening method whiten it,the definition of generalized DEA efficiency of decision making unit is given,the generalized grey DEA efficiency of decision making unit can be evaluated.Finally,the feasibility of the generalized gray DEA model is shown through the analysis of a numerical example.
generalized grey DEA modelgrey theorydecision-making unitsample unitsDEA efficiencydrift solution
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