摘要
通过实例分析说明目前二次文献信息提取中存在的问题．指出学术论文主题标引的重要性和原则．正确的主题分析是搞好主题标引的前提，只有确切的标引．论文才能进入检索系统进行广泛传播．
Through the analysis of the living examples,illustrate the present problems in the recover of the second-document information.Point out the importance and principle of the subject mark of a document.Expound that the correct subject analysis is the premise of the good mark.Precise markls enable apaper to get into the search systems and make a extensive propagation.
出处
《郑州大学学报（自然科学版）》
CAS
1996年第2期90-94,共5页
Journal of Zhengzhou University (Natural Science)
关键词
学术论文
关键词
主题标引
二次文献信息
著录
academic papers
second-document
abstracts
keywords
subject analysis
search systems
