نوع مقاله : مقاله پژوهشی
نویسنده
گروه ریاضی، دانشکده فنی و مهندسی، دانشگاه آزاد اسلامی واحد تهران جنوب، تهران، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسنده [English]
Ranking of efficient two-stage decision-making units (DMUs) is one of the most important issues in network data envelopment analysis (DEA), which hitherto many methods have been presented in this context. However, each of these methods has at least one of these drawbacks: Non-linearity, High computational complexity, Lack of distinction between strong and weak efficient two-stage DMUs, Measuring different efficiencies for each of two-stage DMUs, Failure to consider the internal structures of two-stage DMUs in calculating efficiency and ranking them, and Assigning the same ranks to the efficient two-stage DMUs. Hence, to tackle these problems, this study proposes a network DEA-based method to rank the extremely efficient two-stage DMUs with a series structure. The proposed method is based on eliminating these efficient two-stage DMUs from the reference set and evaluating the efficiency of inefficient two-stage DMUs using the Euclidean norm. Finally, two numerical and empirical examples are presented to illustrate the use of the proposed method.
کلیدواژه‌ها [English]
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