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本文提出的主题标识、分类标识自动转换,及其多途径检索的方法,就是综合利用分类语言与主题语言的各自优点和相互间的联系,既能减轻标引人员的负担,又能提高检索效率的一种标引和检索的方法。 一、含义及工作原理 1、含义。所谓主题标识、分类标识自动转换,就是在档案标引中只标引关键词（是自然语言主题词,不是叙词型的主题词）,采用人工、高层、集中、后控的标引方法,先将若干个概念类同的关键词对应于一个类主题词,依据机内类主题词表和分类表,自动将类主题词转换成分类号。
In this paper, thematic identification, automatic conversion of classification and identification, and multi-channel retrieval method, is to make full use of the respective advantages and mutual relations between classification language and thematic language, which can not only reduce the burden of indexing staff, but also improve the retrieval efficiency A method of indexing and retrieval. First, the meaning and working principle 1, meaning. The so-called theme identification, automatic conversion of the classification of the logo, that is, only indexing the key words in the file indexing (natural language keywords, not thesaurus keywords), using artificial, high-level, centralized control after the indexing method, The first concept of a number of similar keywords corresponding to a category of keywords, based on machine type of thesaurus and classification table, automatically convert the class keywords into the classification number.