论加权检索的权值分配与阈值的确定  

Scientific Method on Weight Value Distribution and Threshoed Value Settlement of Weighted Searching

作　　者：陈能华[1] 

机构地区：[1]湘潭大学信息管理系

出　　处：《图书馆》1996年第2期29-32,共4页Library

摘　　要：本文依据加权检索的本质特征，运用数学方法，对加权检索的权值分配和阈值的确定进行了规范化探讨，推导出了７个计算权值和阈值的数学公式，解决了加权检索在描述用户提问和检索时没有一个科学的规范化处理过程的问题。本文的研究成果经过大量的计算与上机验证。In this thesis. on the basis of foe essential charaetor of weighted searching, the author applied mathematical methods to the weight value distribution and the threshold value settlement, and approached the subject in a normaliring way. Seven mathematical formulas were dedued out to calculate the weight value and the threshold value. The problem has been settled that there is no scientific normaliring handling process when the weighted searching is describing users' inguiring and searching. The researching results in this thesis have been proved by computer and lots of calculating.

关 键 词：加权检索 阈值 权值分配 情报检索 

分 类 号：G354.4[文化科学—情报学]