| Web对象可预取性研究 |
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| 引用本文： | 宋冰,石磊,古志民. Web对象可预取性研究[J]. 计算机工程与设计, 2006, 27(11): 1964-1966 |
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| 作者姓名： | 宋冰 石磊 古志民 |
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| 作者单位： | 郑州大学,信息工程学院,计算机系,河南,郑州,450052;郑州大学,信息工程学院,计算机系,河南,郑州,450052;北京理工大学,信息科学技术学院计算机科学工程系,北京,100081;北京理工大学,信息科学技术学院计算机科学工程系,北京,100081 |
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| 基金项目： | 河南省科技攻关项目;河南省优秀中青年骨干教师资助计划 |
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| 摘 要： | 目前的Web预取模型一般是基于预测算法来提前取得Web对象,缺乏对Web对象可预取性的研究.若在预取Web对象之前考虑该对象的可预取性,将减少不必要的预取,不仅可以提高预取算法的命中率,也可以减少网络流量和系统负载.详细讨论了Web对象的可预取性概念及相应的度量方法,并推导出在预取缓存交互的情况下,基于网络资源和系统负载计算预取阈值的公式,可用于Web对象的可预取性判断,指导预取控制,使得预取技术更加有效.
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| 关 键 词： | Web预取 可预取性 预取控制 可缓存性 |
| 文章编号： | 1000-7024（2006）11-1964-03 |
| 收稿时间： | 2005-04-06 |
| 修稿时间： | 2005-04-06 |
Study on prefetchability of web objects |
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| SONG Bing,SHI Lei,GU Zhi-min. Study on prefetchability of web objects[J]. Computer Engineering and Design, 2006, 27(11): 1964-1966 |
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| Authors: | SONG Bing SHI Lei GU Zhi-min |
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| Affiliation: | 1. Department of Computer, College of Information Engineering, Zhengzhou University, Zhengzhou 450052, China; 2. Department of Computer, College of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Current prefetching models mainly depend on speculation algorithms to fetch web objects in advance, and have the limitation of considering the prefetchability of web objects little or without. If the prefetchability of the objects is considered before prefetching, unnecessary prefetching is lessened to some extent. It could improve hit ratio ofprefetching algorithms, andreduceunnecessarynetwork bandwidth and system load. Prefetchability concept and measurement method of web objects are described in detail, which is used to make prefetching more efficient and controllable. |
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| Keywords: | web prefetching prefetchability prefetching control cachability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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