Realize that searches the standardization of the language and melt compatibly, Have already become information retrieval languages to need the outstanding problem researched and solve.
2
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。
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.
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