信息检索中索引项权重的研究

Research on Term Weighting in Information Retrieval

当前的信息检索模型大多采用的是向量空间模型,在向量空间模型中,特征权重的选择将极大的影响检索性能。本文在标准测试集上对几种经典的特征权重进行了对比实验,并分析了实验的结果。

Vector space model is the most used model in information retrieval,in this model;term weighting can greatly influenced retrieval performance.The paper do the experiments on some test data set and then analysis the experiments result.