面向科技查新的词表构建研究  

A Research on Thesaurus Construction for Science and Technology Novelty Retrieval

作　　者：汪东芳 曹燕[1] 曾文[1] Wang Dongfang;Cao Yan;Zeng Wen

机构地区：[1]中国科学技术信息研究所

出　　处：《图书馆学研究》2020年第19期50-57,共8页Research on Library Science

摘　　要：文章从检索词扩展、跨学科检索、检索策略调整3个角度分析查新业务需求,基于此提出查新词表构建思路,包括词汇来源、特征选择以及搭建词表结构,最后提出词表构建实现思路,包括语料库的选择、词汇抽取方法的改进和词间关系的处理。词表构建的目标是将查新员的隐性知识显性化,成为查新领域专用词典,为应用(推荐、检索、问答系统、文档分类等)提供支撑和铺垫。This paper analyzes the business requirements of novelty retrieval from the perspectives of search term expansion,interdisciplinary search and search strategy adjustment.Based on this,this paper proposes the idea of constructing the thesaurus for science and technology novelty retrieval,including term sources,feature selection and thesaurus structure.Finally,the idea of thesaurus construction is put forward,including the selection of corpus,the improvement of term extraction method and the treatment of inter-word relations.The aim of the thesaurus is to make the tacit knowledge of the novelty retriever explicit and become a special dictionary for the sci-tech novelty search field,providing support and foundation for applications such as recommendation,retrieval,question answering system,document classification and so on.

关 键 词：查新词表 词表构建 科技查新 

分 类 号：G252.62[文化科学—图书馆学]