| 在分析用户访问行为基础上实现代理缓存 |
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| 引用本文： | 庄伟强,李昶,王鼎兴,郑纬民,沈美明.在分析用户访问行为基础上实现代理缓存[J].计算机研究与发展,1999,36(11):1375-1383. |
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| 作者姓名： | 庄伟强 李昶 王鼎兴 郑纬民 沈美明 |
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| 作者单位： | 清华大学计算机科学与技术系,北京,100084 |
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| 摘 要： | 文中提出一个描述ＷＷＷ结构的网站图Ｓｉｔｅ－Ｇｒａｐｈ模型，在此基础上进行用户访问行为分析，从而提出了一个考虑实际请问请求模式的代理缓存系统ＵＲＡＣ．文中详细描述了ＵＲＡＣ的工作原理，对代理缓存设计时所要解决的命中率，一致性和替换算法等主要问题进行了讨论，并给出了性能分析，得到ＵＲＡＣ以提高命中率和降低访问延迟为目标是一个更加实用的代理缓存系统的结论。
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| 关 键 词： | 代理缓存 用户访问行为分析 网站图模型 一致性 替换算法 有效命中率 |
PROXY CACHE IMPLEMENTATION BASED ON USER REQUESTS ANALYSIS |
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| ZHUANG Wei-Qiang,LI Chang,WANG Ding-Xing,ZHENG Wei-Min,SHEN Mei-Ming.PROXY CACHE IMPLEMENTATION BASED ON USER REQUESTS ANALYSIS[J].Journal of Computer Research and Development,1999,36(11):1375-1383. |
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| Authors: | ZHUANG Wei-Qiang LI Chang WANG Ding-Xing ZHENG Wei-Min SHEN Mei-Ming |
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| Abstract: | A site\|graph model to describe the logic structure of World Wide Web is introduced in this paper. Based on this model, the behavior pattern of user requests for home pages is discussed and thus a proxy cache system URAC (user request attentive cache) is implemented. The working principles of URAC and the issues on hit rate, cache coherence, and replacement strategy are addressed in details. Furthermore, the performance of URAC is predicted through simulation. It is concluded that URAC is a practical proxy cache system that can improve valid hit rate and reduce access delay. |
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| Keywords: | proxy cache user request analysis site\|graph model cache coherence replacement strategy valid hit rate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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