Structural properties and physical and chemical water-sorption processes were investigated in the humidity-sensitive MgAl2O4 ceramics sintered at 1300 °C for 2 h under the influence of water. It is shown that cer...
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Fuzzy Logic systems have been successfully used in a wide range of real-world problems. They can include a priori expert knowledge and represent systems for which it is not possible to obtain a mathematical model. The...
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One of the biggest challenges in learning from data streams is adapting the classification model to new data. Due to the evolving nature of data streams, they are subject to a phenomenon known as concept drift that ma...
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In order for Semantic Web applications to be successful a key component should be their ability to take advantage of rich content descriptions in meaningful ways. Reasoning consists a key part in this process and it c...
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Call centers operational models size staff by balancing service quality and efficiency. Classic models consider only the case of dedicated staff. We propose a model for right sizing shared staff, thus extending the cl...
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The industry that designs and promotes advertising products in television channels is constantly growing. For effective market analysis and contract validation, various commercial tracker systems are employed. However...
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In this paper we study cellular evolutionary algorithms, a kind of decentralized heuristics, and the importance of the induced exploration/exploitation balance on different problems. It is shown that, by choosing sync...
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ISBN:
(纸本)0780385152
In this paper we study cellular evolutionary algorithms, a kind of decentralized heuristics, and the importance of the induced exploration/exploitation balance on different problems. It is shown that, by choosing synchronous or asynchronous update policies, the selection pressure, and thus the exploration/exploitation tradeoff, can be influenced directly, without using additional ad hoc parameters. Synchronous algorithms of different neighborhood-to-topology ratio, and asynchronous update policies are applied to a set of benchmark problems. Our conclusions show that the update methods of the asynchronous versions, as well as the ratio of the decentralized algorithm, have a marked influence on its convergence and on its accuracy.
Researchers often come under pressure when facing the ever-increasing demand to produce a progressive number of publications, resorting to hiring the services of paper mills. These are unofficial, and often illegitima...
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We identify key elements of an ideal paradigm for service systems (SS): execution architecture, functional layers, execution dynamic and design approach. The critical service elements are (a) a control layer that enab...
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There has recently been increasing interests in using system virtualization to improve the dependability of HPC cluster systems. However, it is not cost-free and may come with some performance degradation, uncertain Q...
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