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In this article, images obtained by multi-sensor use multi-resolution analysis of image fusion methods based on wavelet transform. Two source images obtained high frequency and low frequency components after wavelet transform. Using fusion rules with criteria based on local variance [7] to obtain low-frequency component. using an adaptive algorithm with local contrast of images to obtain the high-frequency...
In pervasive computing environments, more and more applications or platforms based on mobile phone and PDA emerged. People could get what they want from these platforms anywhere. Top-k and skyline query are two methods to satisfy user's preferences. In many situations, we need to combine the two querying technologies to satisfy the user's preferences, which is called top-k skyline query. Based on...
In digital library federation, a challenge is how to exchange and share information on heterogeneous digital libraries. The mediator-based approach of data integration provide a uniform view by creating the semantic relationship between sources and mediated schema. Since automatic matching produce probabilities, itpsilas necessary to take the probability of mappings into consideration. Further more,...
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