Because the aim of information retrieval is to serve the users, the correlated degree of indexing words and the subject of the document should be the criteria of drawing them.
情报检索的目的是为用户服务，因而标引词的提取应以其与文献主题内容相关程度为标准。
The traditional way of document indexing based on subject words and can't work well in the network environment because of the lack of the ability of semantic deducing.
传统的采用主题词和关键词对文档进行标引的方法，由于不能提供语义推理而越来越不适合目前的网络环境。
The traditional way of document indexing based on subject words and can't work well in the network environment because of the lack of the ability of semantic deducing.
传统的采用主题词和关键词对文档进行标引的方法，由于不能提供语义推理而越来越不适合目前的网络环境。
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