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文献关键词是指从文献中提炼出来的能表达文献主题内容的词或词组。它既能反映文献的重要信息,又起着检索作用,是文献的主题精华。但目前一些作者对关键词标引的认识和在标引准确性方面存在一些问题,文献中无关键词或所提关键词既不规范,也不符合要求,不能反映文献的主题思想。
Literature keywords refer to the words or phrases extracted from the literature to express the subject content of the literature. It not only reflects the important information of the literature, but also plays a retrieval role, which is the essence of the theme of the literature. However, at present, some authors have some problems on the indexing of keywords and on the accuracy of indexing. There are no keywords in the document or the keywords are neither nor nor the requirements, and can not reflect the theme of the literature.