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With the development of Web technology and more kinds of information, how to provide high quality, relevant search results become a huge challenge to the current Web search engines. We analyze the shortcomings of PageRank algorithm and Weighted PageRank algorithms and make targeted improvements. By judging the relation between different web pages based on web content, the improved PageRank algorithm...
Video multicast over broadband wireless networks suffers from packet losses induced by fading wireless channels and user heterogeneity in channel conditions within a multicast group. A promising solution to these problems is the use of layered hybrid FEC/ARQ for scalable video multicast. However, how to allocate the radio resources to multiple video layers and how to address the cross-layer combination...
Efficient and precise compensation of the range cell migration (RCM) effect is a key point for a fast and accurate synthetic aperture sonar (SAS) data processor. In particular, the range dependent nature of RCM complicates the compensation operation. It has been recently shown that an exact compensation of the range dependent RCM phenomenon can be carried out by applying the chirp Z transform procedure...
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