A new clustering approach using data envelopment analysis |
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Authors: | Rung-Wei Po Yuh-Yuan Guh Miin-Shen Yang |
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Affiliation: | 1. Institute of Technology Management, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan, ROC;2. Graduate School of Business Administration, Chung Yuan Christian University, ChungLi 32023, Taiwan, ROC;3. Department of Applied Mathematics, Chung Yuan Christian University, ChungLi 32023, Taiwan, ROC |
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Abstract: | In this paper, we present a new clustering method that involves data envelopment analysis (DEA). The proposed DEA-based clustering approach employs the piecewise production functions derived from the DEA method to cluster the data with input and output items. Thus, each evaluated decision-making unit (DMU) not only knows the cluster that it belongs to, but also checks the production function type that it confronts. It is important for managerial decision-making where decision-makers are interested in knowing the changes required in combining input resources so it can be classified into a desired cluster/class. In particular, we examine the fundamental CCR model to set up the DEA clustering approach. While this approach has been carried for the CCR model, the proposed approach can be easily extended to other DEA models without loss of generality. Two examples are given to explain the use and effectiveness of the proposed DEA-based clustering method. |
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Keywords: | Data envelopment analysis Production Cluster analysis CCR model DEA-based clustering Piecewise production function |
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