This paper explores the connection between systems of linear algebraic equations (SLAE) and machine learning methods, including regularization techniques, to establish a more novel neural network model based on linear...
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One of the principle conditions of a wave attractor appearance is a periodic external forcing. Real forcing in natural basins caused by tidal interaction is more complex than a monochromatic which is usually used in i...
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In this paper, we focused on the problem of extracting information from web pages containing many records, a task of growing importance in the era of massive web data. Recently, the development of neural network metho...
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We investigate complexity of the uniform membership problem for hyperedge replacement grammars in comparison with other mildly context-sensitive grammar formalisms. It turns out that the complexity of the problem cons...
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Communication is one of the bottlenecks of distributed optimisation and learning. To overcome this bottleneck, we propose a novel quantization method that transforms a vector into a sample of components’ indices draw...
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A novel bioimpedance spectroscopy method is introduced;the proposed method can help in the development of objective and accessible criteria for disease assessment, in addition to evaluating the effectiveness of treatm...
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Nowadays, concurrency control for XML data is a big research problem. There are a number of researchers working on this problem, but most of the proposed methods are based on the two-phase locking protocol, which pote...
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ISBN:
(纸本)9783540752875
Nowadays, concurrency control for XML data is a big research problem. There are a number of researchers working on this problem, but most of the proposed methods are based on the two-phase locking protocol, which potentially leads to a high blocking rates in data-intensive XML-applications. In this paper we present and evaluate SXDGL, a new snapshot based concurrency control protocol for XML data. SXDGL completely eliminates data contention between read-only and update transactions. Moreover, SXDGL takes into account the hierarchical structure and semantics of XML data model determining conflicts between concurrent XML-operations of update transactions. The conducted evaluation shows significant benefits of SXDGL for processing concurrent transactions in data-intensive XML-applications.
Element constructor is one of most expensive operations of the XQuery language as it requires deep copy of the nodes which make up the content of the constructed element. In this paper we propose various optimization ...
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Element constructor is one of most expensive operations of the XQuery language as it requires deep copy of the nodes which make up the content of the constructed element. In this paper we propose various optimization and implementation techniques to avoid copying of the nodes during constructor evaluation. The proposed techniques are based on using special kind of XQuery constructors with modified semantics which evaluation does not require content node copying. We also provide optimization rules which replace standard constructors with modified ones without changing query result. The proposed techniques are designed to minimize modifications of an existing implementation. Possible technique extensions which might depend on implementationspecific features are also considered. We present results from experimental study of the techniques which demonstrate performance improvement of constructor evaluation.
The S.A. Lebedev institute developed operating system for the AS-6 distributed computing system (OS AS-6) in the 1970s. The OS AS-6 consisted of peer operating systems of separate machines making up the AS-6 computer ...
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Binary code comparison tools are widely used to analyze vulnerabilities, search for malicious code, detect copyright violations, etc. The article discusses three tools - BCC, BinDiff, Diaphora. Those are based on stat...
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