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计算机工程 ›› 2011, Vol. 37 ›› Issue (6): 7-8.doi: 10.3969/j.issn.1000-3428.2011.06.003

• 博士论文 • 上一篇    下一篇

基于查询词邻近度的专家搜索算法

杨 柳，张文生   

  1. (中国科学院自动化研究所复杂系统与智能科学重点实验室，北京 100190)
  • 出版日期:2011-03-20 发布日期:2011-03-29
  • 作者简介:杨 柳(1984－)，男，博士，主研方向：信息检索，互联网数据挖掘，搜索引擎；张文生，教授、博士
  • 基金项目:
    国家自然科学基金资助项目(90924026)；国家“863”计划基金资助项目(2008AA01Z121, 2007AA01Z338)

Expert Search Algorithm Based on Query Word Proximity

YANG Liu, ZHANG Wen-sheng   

  1. (Key Lab of Complex Systems and Intelligence Science, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China)
  • Online:2011-03-20 Published:2011-03-29

PDF

1119

被引次数

6

摘要： 提出一种基于查询词邻近度的专家搜索算法。根据查询词在窗口中的共现关系构建概率语言模型的查询词邻近度，利用经典概率模型作为背景平滑，通过对多个查询词在文档中的距离关系建模，结合候选人与查询词之间的距离对候选专家排序。实验结果表明，在该算法中引入查询词邻近度可以提高搜索准确率，应用候选人与查询词2种邻近度可以取得更好的专家搜索效果。

关键词: 专家搜索, 查询词邻近度, 概率语言模型

Abstract: This paper proposes an expert search algorithm based on query proximity. It builds query word proximity of probability language model according to query word concordance in window, and uses classical probability model as background smooth. The distance dependencies between multiple query terms and it then ranks the candidates and combines with the distance between candidates and query terms. Experimental results show that employing query proximity in expert search improves the precision score significantly and a combination of both kinds of dependencies can achieve better performance.

Key words: expert search, query word proximity, probability language model

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