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It does not consider how similar words are distributed in the text that the traditional algorithm of the VSM characteristic weighs - TF-IDF. For solving the problem, from the semantic view and combined optimization techniques, a improved IF-IDF Weighting algorithm is proposed. This algorithm can effectually reduce the subjective factors of faceted classification, and further improve the effect of...
Based on the group of SONY Company ICX229AK PAL image sensor chipset, PAL integrative camera with VGA interface is designed in this paper. Using the DSP + FPGA + ASIC architecture, it completes the acquisition of the video signal and display, and achieves key technologies of auto-focusing and auto iris in the FPGA. Some new type practical functions such as four images storage, mouse driver, real-time...
In the process of data integration, the traditional methods are difficult to solve the problems, what are the large amounts of data redundancy, faintness of Information representation, heterogeneous data and so on. The combination of emerging technology and XML-DTD technology can solve the above problem better. This paper analyzes the characteristics of gas accident of the coalfield, creating an OWL...
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