• فهرس المقالات Centralized resource allocatio

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        1 - مدل تحلِیل پوششِی داده‌های کاراِیِی هزِینه متمرکز
        بیژن رحمانِی پرچکلاِیِی
        اندازه کاراِیِی هزِینه، هزِینه منبع توسط تولِید خروجِی است. در حالِی­که مدل­هاِی کاراِیِی هزِینه براِی هر واحد تصمِیم­گِیرِی هدف­هاِی مجزاِیِی قرار مِی­دهند، حالت هاِیِی وجود دارد که تصمِیم­گِیرنده مرکزِی هدف­هاِی فوق را جستجو ودر عِین حال تل أکثر
        اندازه کاراِیِی هزِینه، هزِینه منبع توسط تولِید خروجِی است. در حالِی­که مدل­هاِی کاراِیِی هزِینه براِی هر واحد تصمِیم­گِیرِی هدف­هاِی مجزاِیِی قرار مِی­دهند، حالت هاِیِی وجود دارد که تصمِیم­گِیرنده مرکزِی هدف­هاِی فوق را جستجو ودر عِین حال تلاش مِی­کند کاراِیِی هزِینه مصرف کل را کمِینه کند. در اِین مقاله وجود تصمِیم­گِیرنده مرکزِی را در نظر مِی­گِیرِیم. در چنِین حالتِی تصمِیم­گِیرنده به کمِینه­سازِی کاراِیِی هزِینه واحدهاِی مجزا علاقه­مند است و در همان حال مِی­خواهد مصرف ورودِی کل کاهش ِیا تولِید کل خروجِی افزاِیش ِیابد. ما مدل ماراِیِی هزِینه متمرکز جدِید بر پاِیه مدل کاراِیِی هزِینه فارل و مدل باز تخصِیص منبع متمرکز لوزانو و وِیلا اراِیه مِی­دهِیم که کاراِیِی هزِینه کل تخصِیص منبع کاهش ِیابد، از اِین رو ممکن است بعضِی از ورودِی­ها کاهش ِیابند. برترِی ومزِیت­هاِی اِین مدل با چند مثال اراِیه شده است. تفاصيل المقالة
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        2 - CO2 Reduction in a Centralized System with a Bounded Adjusted Measure model in DEA
        Sima Madadi
        The high consumption of energy and the production of greenhouse gases have forced the government to impose restrictions on energy consumption and reduce environmental pollutants in industries. In this research, a model based on Bounded adjusted measure (BAM) and central أکثر
        The high consumption of energy and the production of greenhouse gases have forced the government to impose restrictions on energy consumption and reduce environmental pollutants in industries. In this research, a model based on Bounded adjusted measure (BAM) and centralized resource allocation is presented, which reduces pollution among all units by solving only one model. The presented model can be useful for pollution control in specific geographical or industrial area where the central manager wants to reduce pollution to a certain level among all units. تفاصيل المقالة
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        3 - Centralized resource allocation SBM proposed method
        Mohhamad Seyfpanah
        In this paper, a new method for centralized resource allocation based on the proposed SBM model of data envelopment analysis has been introduced. Models of DEA search targets separately for each DMU, but in this proposed model, by solving one model searches targets for أکثر
        In this paper, a new method for centralized resource allocation based on the proposed SBM model of data envelopment analysis has been introduced. Models of DEA search targets separately for each DMU, but in this proposed model, by solving one model searches targets for all DMUs and projects all of them on the efficient frontier where this method will find a better image point rather than the previous methods. The goal is to reduce inputs and increase outputs to the non-radial. Finally, it is compared with previous methods by illustrating some examples and it seems that this method is for better. تفاصيل المقالة
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        4 - Investigating and Comparing Several Centralized Resource Reallocation Methods
        Kamyar Nojoumi Saber Saati Leila Khoshandam
        Data envelopment analysis is a non-parametric method based on mathematical programming, which is used to evaluate the performance of a set of decision-making units with multiple homogeneous inputs and outputs. One use of data envelopment analysis is the integration of r أکثر
        Data envelopment analysis is a non-parametric method based on mathematical programming, which is used to evaluate the performance of a set of decision-making units with multiple homogeneous inputs and outputs. One use of data envelopment analysis is the integration of resources and inputs to create new efficient decision-making units. As a classic research topic in the fields of management and economics, the resource allocation problem has gained extensive attention from many researchers, and a large body of research has been conducted accordingly. The present study investigates some of the proposed methods and models of the allocation problem تفاصيل المقالة
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        5 - Centralized resource allocation with the possibility of downsizing to evaluate two-stage production system with shared inputs
        Amir Yadollahi رضا کاظمی متین Farhad Hosseinzadeh Lotfi
        This paper proposes a centralized network data envelopment analysis model that combines the centralized data envelopment analysis model with possibility of downsizing and two-stage network data envelopment analysis. In the proposed model, this paper also considers the s أکثر
        This paper proposes a centralized network data envelopment analysis model that combines the centralized data envelopment analysis model with possibility of downsizing and two-stage network data envelopment analysis. In the proposed model, this paper also considers the situation in which shared inputs are jointly consumed in each stage. We also assume some outputs can be produced by the first and second stages by using separate inputs. The proposed model is illustrated in an empirical example of twenty sale representatives in two provinces of Golestan and Mazandaran. The results provide valuable information for the centralized decision-maker on how to reallocate resources among the units. تفاصيل المقالة
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        6 - A Bi-level Formulation for Centralized Resource Allocation DEA Models
        Mohammad Moghaddas Ghasem Tohidi
        In this paper, the common centralized DEA models are extended to the bi-level centralized resource allocation (CRA) models based on revenue efficiency. Based on the Karush–Kuhn–Tucker (KKT) conditions, the bi-level CRA model is reduced to a one-level mathema أکثر
        In this paper, the common centralized DEA models are extended to the bi-level centralized resource allocation (CRA) models based on revenue efficiency. Based on the Karush–Kuhn–Tucker (KKT) conditions, the bi-level CRA model is reduced to a one-level mathematical program subject to complementarity constraints (MPCC). A recurrent neural network is developed for solving this one-level mathematical programming problem. Under a proper assumption and utilizing a suitable Lyapunov function, it is shown that the proposed neural network is Lyapunov stable and convergent to an exact optimal solution of the original problem. Finally, an illustrative example is elaborated to substantiate the applicability and effectiveness of the proposed approach. تفاصيل المقالة
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        7 - Efficiency of Centralized Structures in Data Envelopment Analysis Ratio Models
        Shabnam Razavyan
        This paper investigates the centralized resource allocation with centralized structures by using the data envelopment analysis-ratio (DEA-R) models. To this end, it proposes a method to determine the resource allocation of centralized structures such that the ratio of i أکثر
        This paper investigates the centralized resource allocation with centralized structures by using the data envelopment analysis-ratio (DEA-R) models. To this end, it proposes a method to determine the resource allocation of centralized structures such that the ratio of inputs to outputs are minimized. تفاصيل المقالة