信息检索中修饰语作用的研究

在海量信息中检索时,与用户查询相关的信息常常被漏掉,而与查询无关的信息———信息垃圾,却大量地出现在检索结果中。改进文本信息检索系统的质量,提高检索效能,已成为亟待解决的问题。本文针对能够影响检索效力的一个易被忽略的因素———修饰语,研究其在文本信息检索中的作用。为此,构建了修正的向量空间模型(Modified Vector Space Model,MVSM),并以英文文本进行试验,进而说明修饰语的作用。

Research on the Importance of Modifiers to Document Information Retrieval

It happens more often than not that when people retrieve documents among a mass of information,the exact information relevant to the user's query can't be obtained,on the contrary too much information trash,which is not relative to the user's,is cover a large proportion.Therefore,improving the quality and effectiveness of the information retrieval(IR) system has become a desired issue.The objective of this paper is to research into the importance of modifiers,which is a factor often ignored but can influence the effectiveness of IR system,to document information retrieval.According to this,a modified vector space model(MVSM) is built.Experiments using English documents are also done to show the importance of modifiers.