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To solve the mis-clusters caused by the traditional information cut algorithm when it is applied to segment images with gray changes, modified information cut in wavelet domain (W-MIC) algorithm is proposed. First, using the gray relevance and space relevance between image pixels, a modified information cut (MIC) is presented, which utilizes a new Parzen windowing function to evaluate probability...
Testing for possible structural changes in economic model is one of the principal objectives of econometric analysis. We propose a wavelet method to test the presence of an arbitrary number of discontinuities in an unknown nonparametric function observed with variance shift random walk noise. The critical values of the test are obtained by checking the absolute values of wavelet coefficients. We also...
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