计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (13): 137-140.

• 数据库、信号与信息处理 • 上一篇    下一篇

基于聚类BNR扩展模型的信息检索研究

杨断利1,2,黄 勇2,王克俭2,杨素林2,李 岩2   

  1. 1.河北大学 数学与计算机学院,河北 保定 071002
    2.河北农业大学 信息科学与技术学院,河北 保定 071001
  • 收稿日期:2007-10-10 修回日期:2008-01-11 出版日期:2008-05-01 发布日期:2008-05-01
  • 通讯作者: 杨断利

Research on information searching based on BNR

YANG Duan-li1,2,HUANG Yong2,WANG Ke-jian2,YANG Su-lin2,LI Yan2   

  1. 1.Institute of Mathematics and Computer,Hebei University,Baoding,Hebei 071002,China
    2.College of Information Science and Technology,Agricultural University of Hebei,Baoding,Hebei 071001,China
  • Received:2007-10-10 Revised:2008-01-11 Online:2008-05-01 Published:2008-05-01
  • Contact: YANG Duan-li

摘要: 使用聚类技术对BNR进行扩展,得到一个新的4层模型,该模型同时使用了术语间和文档间的相近和相似关系,将此扩展模型和简单的RNR、扩展的BNRM模型比较,实验证实信息检索系统的检准率和检全率都有所提高。

关键词: BNR, 扩展模型, 聚类技术, 信息检索, 文档聚类

Abstract: This paper proposes a new four models that is made to expand BNR by the cluster technology,and this model describes simultaneously close and the similar relations between the terms and the documents.Experiment results show that the rate of veracity and integrity of this approach are obviously improved than simple RNR and the expansion BNRM model in the information searching system.

Key words: BNR, expansion model, clustering approach, information searching, document clustering