基于语义的信息检索中的反馈技术

Relevance Feedback in Semantic-Based Information Retrieval

首先分析了两种基于语义的信息检索系统的基本框架。由于相关反馈计算在基于内容的图像检索中受到广泛重视,因此对相关反馈中的加权距离进行了讨论和总结。这种相关反馈技术使得高层次语义特征能够逐步嵌入到低层次特征的图像检索中,使检索的准确率大大提高。

In this paper, first, we analysis two kinds of the semantic based information retrieval system. Recently researchers have paid more and more attention to the use of relevance feedback in the CBIR system. Then we discuss the weighted distance approach in the relevance feedback. The relevance feedback can embed the high level semantics into low level features and make the system capture the needed information for the user more precisely.