| 基于共引分析及Fisher判别法的网站过滤及扩展研究 |
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| 引用本文： | 袁毅,吴宗翔.基于共引分析及Fisher判别法的网站过滤及扩展研究[J].情报学报,2006,25(5):606-612. |
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| 作者姓名： | 袁毅 吴宗翔 |
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| 作者单位： | 1. 中国矿业大学文法学院,徐州,221008
2. 中国矿业大学理学院,徐州,221008 |
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| 基金项目： | 江苏省哲学社会科学规划项目 |
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| 摘 要： | 从大量动态无序的非结构化网络资源中发现主题或学科核心网站,是学科导航、个性化服务及信息推送的基础。但在核心网站评选过程中,存在两个问题,一是通过搜索引擎获得的相关网站集合中,有大量非相关网站,直接影响核心网站评选的效率;二是当前核心网站研究中均未考虑到网站的扩展问题。为此,本文将Web共引分析技术引入非相关网站过滤,提出利用Fisher判别法实现核心网站扩展,并给出了扩展可靠性检验方法。
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| 关 键 词： | Web资源评价 网站过滤 网站扩展 核心网站 |
| 修稿时间： | 2005年11月7日 |
Websites' Filtering and Extension Based on Co-Citation and Fisher Ruler |
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| Yuan Yi,Wu Zongxiang.Websites'''' Filtering and Extension Based on Co-Citation and Fisher Ruler[J].Journal of the China Society for Scientific andTechnical Information,2006,25(5):606-612. |
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| Authors: | Yuan Yi Wu Zongxiang |
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| Abstract: | Search subject core Websites from a lot of dynamic out-of-order Web resources is foundation of subject navigations,individuation services and information push.However,in the process of core Websites evaluation and selection,there are two problems.At first,there are many no-relative Websites in the result of research.This decreases core Website evaluation efficiency.The second,core Websites' expand is not discussed in the past studies.In this study,Web co-citation analysis is used to filter non-relative Websites,fisher ruler is used to expand core Websites.Further more,the test method of expand' reliability is given. |
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| Keywords: | core Website information filter Fisher ruler Web co-citation |
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