2006-2007年国外信息检索基本理论研究进展

The Review of the Basic Study on Information Retrieval Abroad from 2006 to 2007

2006-2007年国外对信息检索基础理论的研究主要集中于决策理论、隐含语义索引理论研究以及信息检索评价理论研究。关于信息检索基本原理的研究主要集中在信息检索中的分类、信息检索模型、信息检索类型和检索方式等方面。信息检索中的分类的研究重点包括有关分类器的研究;有关特征选择的研究;有关领域相关词的研究。信息检索类型的研究主要包括焦点检索、图像检索、视频检索、合作过滤、机器音译、无线网中网。检索方式的研究主要包括上下文检索、集成检索、问答系统检索以及用户查询处理等问题。

The foreign research on basic theory of information retrieval from 2006 to 2007 mainly includes decision theory, latent semantic indexing and evaluation of information retrieval. Researches of principles of information retrieval focus on the classification, models, types and methods of information retrieval. The research of classification includes classification machine, features choosing and correlative words, The research of types of information retrieval includes focused retrieval, image retdeval, video retrieval, and cooperation filtering, machine transliteration and wireless mesh community network, The research of methods of information retdeval includes contextual retrieval, integrated retdeval, as well as question-and-answer system retrieval and users query processing.