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A Fully Fuzzified Two-stage DEA
There is a growing literature in DEA where researchers are opening the black box to evaluate the efficiency performance of internal processes. Within this context, we study a relational two-stage DEA model where there is ...
A fully fuzzified data envelopment analysis model
In the conventional data envelopment analysis (DEA), all the data assumes the form of crisp numerical values. However, the observed values of the input and output data in real-world problems are sometimes imprecise or ...
Efficiency evaluation using DEA in a fuzzy environment
Data envelopment analysis (DEA) is a considerable mathematical programming technique for measuring the relative efficiencies of a set of decision making units (DMUs) with multiple inputs and multiple outputs. The conventional ...