| Abstract:
A new clustering approach has been recently proposed by Guh et al. in [13] that use data envelopment analysis to cluster a data set. This approach uses the piecewise production functions derived from the DEA method to cluster the data with input and output items. But their alternative algorithm has a practical difficulty because of alternative optimal solutions of DEA models. So, in this paper, the algorithm’s problem will be illustrated and a new algorithm will be suggested to conduct a DEA- based clustering for a group of data, correctly.
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