The paper presents a modelling approach for performance comparison of Central European companies on three levels: country, industry, and company. The approach is based on Data Envelopment Analysis and Analytic Hierarchy Process. The proposed model consists of two basic sections. The first section estimates the importance of selected industries in the countries, whereas the second section evalua...

Monitoring of program behavior is a basic necessity for performance tuning and debugging. A major problem is the overhead associated with the monitoring tasks, which influences the program’s behavior and affects the observation results. At the same time, a certain amount of data is needed for the program analysis activities. For this reason, monitoring approaches have to balance the amount of o...

Many validity measures have been proposed for evaluating clustering results. Most of these popular validity measures do not work well for clusters with different densities and/or sizes. They usually have a tendency of ignoring clusters with low densities. In this paper, we propose a new validity measure, which can deal with this situation. The performance evaluation of the validity measure comp...

The purpose of this study is to establish hierarchical structures for the performance evaluation of vague, humanistic complicated systems. To overcome the difficulties due to partial information and the vagueness of human knowledge and recognition, a fuzzy relation-based clustering method is proposed to model this evaluation. First, the effects of different max-ti compositions on the formation ...

Some indexes are necessary for performance evaluation of a management system. Balanced scorecard (BSC) is used in order to extraction of these indexes for evaluating the necessary performances in the evaluation process. Utilization of BSC causes to prevent in increasing information and data. Furthermore, all of the important indexes are considered in evaluation performance.Data envelopment anal...

The paper presents the original contributions on structural and functional analysis of numerical controlled (NC) axes of industrial robots (IR) with electric driving system. Main purpose of the paper is to define and validate an assisted selection procedure of IR’s NC axes optimal structure imposed specification accordingly IR’s output for performance level. For this purpose a complex assisted ...

*Correspondence: [email protected] School of Economics and Management, Tongji University, Siping Road, 200092 Shanghai, China Abstract This paper considers a pricing and remanufacturing problem in closed-loop supply chain which includes one dominant manufacturer and one retailer under uncertain environment. The remanufacturing cost, market demand, and collection cost are characterized as unce...

Invariant numerical schemes possess properties that may overcome the numerical properties of most of classical schemes. When they are constructed with moving frames, invariant schemes can present more stability and accuracy. The cornerstone is to select relevant moving frames. We present a new algorithmic process to do this. The construction of invariant schemes consists in parametrizing the sc...