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Efficiency measurement using independent component analysis and data envelopment analysis

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  • Kao, Ling-Jing
  • Lu, Chi-Jie
  • Chiu, Chih-Chou

Abstract

Efficiency measurement is an important issue for any firm or organization. Efficiency measurement allows organizations to compare their performance with their competitors' and then develop corresponding plans to improve performance. Various efficiency measurement tools, such as conventional statistical methods and non-parametric methods, have been successfully developed in the literature. Among these tools, the data envelopment analysis (DEA) approach is one of the most widely discussed. However, problems of discrimination between efficient and inefficient decision-making units also exist in the DEA context (Adler and Yazhemsky, 2010). In this paper, a two-stage approach of integrating independent component analysis (ICA) and data envelopment analysis (DEA) is proposed to overcome this issue. We suggest using ICA first to extract the input variables for generating independent components, then selecting the ICs representing the independent sources of input variables, and finally, inputting the selected ICs as new variables in the DEA model. A simulated dataset and a hospital dataset provided by the Office of Statistics in Taiwan's Department of Health are used to demonstrate the validity of the proposed two-stage approach. The results show that the proposed method can not only separate performance differences between the DMUs but also improve the discriminatory capability of the DEA's efficiency measurement.

Suggested Citation

  • Kao, Ling-Jing & Lu, Chi-Jie & Chiu, Chih-Chou, 2011. "Efficiency measurement using independent component analysis and data envelopment analysis," European Journal of Operational Research, Elsevier, vol. 210(2), pages 310-317, April.
    • Handle: RePEc:eee:ejores:v:210:y:2011:i:2:p:310-317
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    3. Antônio Artur de Souza & Ewerton Alex Avelar & Alisson Maciel de Faria Marques & Douglas Rafael Moreira & Osmar Ferreira da Silva & Daniele Oliveira Xavier, 2014. "Performance Analysis Of Brazilian Public And Philanthropic Hospitals (Análise Do Desempenho De Hospitais Públicos E Filantrópicos Brasileiros)," Portuguese Journal of Management Studies, ISEG, Universidade de Lisboa, vol. 0(2), pages 75-94.
    4. Dinesh R. Pai & Fatma Pakdil & Nasibeh Azadeh-Fard, 2024. "Applications of data envelopment analysis in acute care hospitals: a systematic literature review, 1984–2022," Health Care Management Science, Springer, vol. 27(2), pages 284-312, June.
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    10. Muhammed Ordu & Hediye Kirli Akin & Eren Demir, 2021. "Healthcare systems and Covid19: Lessons to be learnt from efficient countries," International Journal of Health Planning and Management, Wiley Blackwell, vol. 36(5), pages 1476-1485, September.
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