標題: A study of optimal weights of Data Envelopment Analysis - Development of a context-dependent DEA-R model
作者: Wei, Ching-Kuo
Chen, Liang-Chih
Li, Rong-Kwei
Tsai, Chih-Hung
Huang, Hsiao-Ling
工業工程與管理學系
Department of Industrial Engineering and Management
關鍵字: Data Envelopment Analysis;Redundant restraints on weight;Context-dependent;Cluster analysis;Medical center
公開日期: 1-三月-2012
摘要: The weight is one of the main issues of Data Envelopment Analysis (DEA), and relevant theoretical research indicates that many DEA mathematical models include redundant restraints on weight, resulting in underestimated efficiency, pseudo inefficiency, and difficulty in representing specific Input/Output relationships. This study proposes a context-dependent DEA-R model to address shortcomings resulting from redundant restraints on the weights of an efficient decision making unit (DMU), and converts the optimal weight to analyze the influences of redundant restraints on weights. The evaluation results of Taiwan medical centers show that the efficiency of the DMU is underestimated and pseudo inefficiency may occur due to redundant restraints on weight. Moreover, optimal weights are used as variables to conduct cluster analysis in order to determine the information of the weights. The results of cluster analysis indicate that it can assist DMUs in understanding the relationships between DMUs, and contribute to the development of a unique survival strategy for hospitals. (C) 2011 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.eswa.2011.10.001
http://hdl.handle.net/11536/15205
ISSN: 0957-4174
DOI: 10.1016/j.eswa.2011.10.001
期刊: EXPERT SYSTEMS WITH APPLICATIONS
Volume: 39
Issue: 4
起始頁: 4599
結束頁: 4608
顯示於類別:期刊論文


文件中的檔案:

  1. 000299583700072.pdf