期刊名称：Oriental Journal of Computer Science and Technology
印刷版ISSN：0974-6471
出版年度：2011
卷号：4
期号：2
页码：411-415
语种：English
出版社：Oriental Scientific Publishing Company
摘要：Search engines are in performance a major essential role in discovering information nowadays. Due to limitations of network bandwidth and hardware, search engines cannot obtain the entire information of the web and have to download the most essential pages first. In these paper, we propose a swarming ordering strategy, which have based on SiteRank, and compare it with several swarming ordering strategies. All the four strategies make an optimization for the naive swarming more or less. At the beginning of the swarming process, all the strategies can crawl the pages with high PageRank. When downloading 48% of the pages, the sum of PageRank is over 58% even for the worst one. At the later phase of swarming, the sum of PageRank varies slowly and reaches to unique finally. The objective of these strategies is to download the most essential pages early during the crawl. Experimental results indicate that SiteRank-based strategy can work Efficiently in discovering essential pages under the PageRank evaluation of page quality.
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