| 搜索引擎中页面更新策略的分析与改进 |
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| 引用本文： | 文坤梅,卢正鼎,叶卫国,金莉.搜索引擎中页面更新策略的分析与改进[J].华中科技大学学报(自然科学版),2002,30(12):3-5. |
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| 作者姓名： | 文坤梅 卢正鼎 叶卫国 金莉 |
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| 作者单位： | 华中科技大学计算机科学与技术学院 |
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| 基金项目： | 国家高性能计算基金资助项目 (99319) |
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| 摘 要： | 网上信息资源不断变化，搜索引擎需要不断更新它所访问过的网页，提高更新效率是搜索引擎的关键技术所在，在总结搜索引擎现有页面更新策略（统一更新策略和个体更新策略）进行了比较，指出了两种方案的优劣所在，进而提出了一种改进的折衷方案即分类更新策略。并从理论上论证其优越性，在实际应用中评价了有其有效性，结果表明分类更新策略很大程度上改进的搜索效果。
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| 关 键 词： | 搜索引擎 更新度 网页 更新策略 |
| 文章编号： | 1671-4512(2002)12-0003-03 |
| 修稿时间： | 2002年7月12日 |
Analysis of Web freshness strategies and its improvement in search engine |
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| Wen Kunmei,Lu Zhengding,Ye Weiguo,Jin Li.Analysis of Web freshness strategies and its improvement in search engine[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2002,30(12):3-5. |
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| Authors: | Wen Kunmei Lu Zhengding Ye Weiguo Jin Li |
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| Institution: | Wen Kunmei Lu Zhengding Ye Weiguo Jin Li |
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| Abstract: | This paper described the basic principle of search engine. On the basis of the present technologies of Web freshness, the uniform freshness strategy and the personal freshness strategy were compared and the advantages and disadvantages of their strategies were put forward. The paper presented an advanced scheme, classified freshness strategy with a demonstration of its optimization in theory and its efficiency in practice. The results showed that the classified freshness strategy improved the searching effect obviously. |
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| Keywords: | search engine freshness Web page freshness strategies |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
