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Comparison of the combined methods PCA-DEA (principal component analysis - data envelopment analysis) and FA-DEA (factor analysis - data envelopment analysis) in the presence of negative data | ||
Journal of New Researches in Mathematics | ||
مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 20 شهریور 1402 | ||
نوع مقاله: research paper | ||
شناسه دیجیتال (DOI): 10.30495/jnrm.2023.71552.2377 | ||
نویسندگان | ||
Hoda Dalili Yazdi1؛ FARZAD MOVAHEDI SOBHANI 1؛ Hamed Kazemipoor 2 | ||
1Department of Industrial Engineering, Islamic Azad University, Science and Research Branch, Tehran, Iran. | ||
2Department of Industrial Engineering, Islamic Azad University, Central Tehran Branch, Tehran, Iran. | ||
چکیده | ||
One of the significant issues with DEA occurs when there is the extensive number of inputs and outputs compared to the number of DMUs. This situation leads to attribute one to the efficiency score of a large number of units, as a result, the ranking power of the DEA becomes further moderated. By combining dimension reduction methods such as principal component analysis (PCA) and factor analysis (FA) with data envelopment analysis (DEA), the mentioned problem can be solved. In this paper, the effectiveness of two dimension reduction methods, named PCA and FA, combined with DEA has been compared. The superiority criterion of these two methods is based on the reduction in the number of efficient units. By implementing both integrated methods on the data of companies in the Iranian stock market, the effectiveness of these two methods have been compared. Since the data available in the stock market include both positive and negative values, the integrated methods presented in this research are able to determine efficiency for units with both positive/negative data in their input and output indices. The number of efficient units determined by both methods are not different significantly. Both integrated methods are successful in reducing the efficient units, so another index called (MSE) is used to determine the superiority of the methods. This index shows the difference between efficiency scores calculated by integrated methods and efficiency scores calculated by DEA (SBM). This index for FA-DEA is less than for PCA-DEA, which indicates the superiority of FA-DEA. | ||
کلیدواژهها | ||
Data Envelopment Analysis (DEA)؛ Principle Component Analysis (PCA)؛ Factor Analysis (FA)؛ Efficiency score and Negative Data | ||
آمار تعداد مشاهده مقاله: 141 |