单词keyword-indexing
网络: 关键词索引；关键字搜索
Talk about keyword indexing for scientific and technical articles
谈科技论文中关键词的标引
Keyword indexing in the course of compiling medical periodicals
医学期刊编辑中的关键词标引
Research on Maximum Entropy Model for Keyword Indexing
关键词自动标引的最大熵模型应用研究