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In the paper, we propose phase type (PH) distribution service time working vacation scheme cyclic polling system for WDM. This system consists of multi-queues (terminals). Using the decomposition approach, each queue is analyzed as a single server queue with PH distribution service time working vacation scheme which works at a different rate rather than completely stops during the vacation polling...
This article had a formalizing description to the structure of logic compound sentences (LCS) in the course of decompilation. It applied the Logic diagram to the recognition of LCS which belongs to graph theory. The recognition arithmetic overcame the shortcomings of some typical current approaches. Furthermore, this article introduced logical correlation matrices in the solution to the Logic diagrams,...
We apply the random-matrix approach to undress the noise of the cross correlation matrix constructed from Shanghai Stock Exchange (SSE) for the period 2001-2008. The empirical evidence shows that, about 7.4% of the eigenvalues fall out the RMT bounds, and the eigenvalues within the bounds agree with the universal properties of random matrix, implying a large degree of noise in the correlation matrix...
Based on an analysis on the Web log mining algorithm of predecessors, this paper presents the Web site structure optimization technology to improve customer interest. The technology proposes similar customer groups and clustering algorithms of relevant Web pages based on interest matrix of customers accessing a Web site to discover the hidden customer access patterns. Experiment results demonstrate...
Fisher??s discriminant requires the inverse operation of high-order within-class scatter matrix [Sw] in the dimensionality reduction of feature vectors. The results may be inaccurate if [Sw] is close to singular. This paper presents another classification-oriented mapping method for the dimensionality reduction of high-dimensional feature vectors, based on the generalized cross product of multi-vectors...
In order to overcome classical wavelets' shortcoming in image processing problems, people developed many producing systems, which built up wavelet family. In this paper, the notion of AB-multiresolution analysis is generalized,and corresponding theory is developed. For an AB-multiresolution analysis associated with an expanding matrix, we deduce that there exists a singe scaling function in its reducing...
Discretizations of inverse problem lead to systems of linear equations with a highly ill-conditioned coefficient matrix, and in order to compute stable solutions to these systems it is necessary to apply regularization methods. This paper compares our improved Tikhonov regularization algorithm to several existing regularization methods, which are carried out to the theoretical mode, and the results...
To rapidly and accurately search the corresponding points along scan-lines, rectification of stereo pairs are performed so that corresponding epipolar lines are parallel to the horizontal scan-lines and the difference in vertical direction is zero. In this paper, the method to rectify image pairs could be divided into three steps including projective transformation, affine transformation and shearing...
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