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Science development and industry progress motivate researchers to solve the problems of the real world. This paper presents a new multi-objective mathematical model on identical batch processors arranged in parallel in order to minimize three objective functions including time, cost and jobs incompatibility simultaneously. The concept of jobs incompatibility used to classify the previous studies can...
This article presents evaluation of effi ciency of the production scale of Polish milk processing companies in 1999–2010 performed basing on non-parametric methods. The non-parametric approach stemmed from linear programming method known as the Data Envelopment Analysis (DEA) method. The study involving a sample of 743 objects revealed increasing returns to scale observable in the Polish dairy sector...
When estimating RTS (returns to scale) using the BCC RTS method in DEA (data envelopment analysis), there exist multiple optimal solutions which lead to error RTS estimation. This paper introduces the improved BCC RTS method for this problem. Given the existence of an optimal solution with u*0 ≠ 0 in the BCC multiplier model, the existence of an optimal solution with u*0 = 0 is the focus. A system...
In this paper, the efficiency of base transceiver station (BTS) sites of Mobile Telecommunication Company is evaluated, using data envelopment analysis. The data envelopment analysis (DEA) is based on the linear programming model. This method needs a series of information by which the effectiveness and ineffectiveness of decision making units will be determined. In this article, the inputs and outputs...
In this article dual programs concerning the revenue sphere are presented. In the first part, final form of the dual programs is derived. In the second part, interpretation of the programs is done . In the last part, empirical example of the dual programs is presented (based on real data from the Polish banking sector)
In the input of production and operations in large-scale enterprises (groups), central costs have now involved a wider scope, more varieties and larger amounts, and therefore central costs are becoming more and more important how to business performances. The change makes it more and more important to analyze and evaluate the input scale and structures of central costs. The appraisal of common costs...
In this article dual programs concerning the cost sphere are presented. In the first part, final form of the dual programs is derived. In the second part, exemplary interpretation of one of the programs is done. In the last part, empirical example of application of the dual programs is presented (based on real data from the Polish energy sector)
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