主题词标引（Subject headings indexing）.doc

主题词标引（Subject headings indexing） Documents from the network, I collected, finishing, and if there are omissions, errors, but also please correct me! Subject headings indexing Subject headings, also called descriptors, are concepts based, standardized, word and phrase that exhibit semantic properties and can be used to display semantic relations between words Subject headings are divided into formal subject headings and informal subject headings Formal subject headings are used to index and retrieve documents, and informal subject headings are the leading words for finding formal subject headings Also known as the thesaurus thesaurus, refers to a dynamic dictionary by semantic specification in natural language selected, and related terms related to the composition of the alphabetically Document thesaurus is a thesaurus used for subject indexing and retrieval of official documents It is a kind of term control tool which is adapted to the office automation, especially the needs of computer data processing, and for the subject indexing and retrieval of official documents in party and government offices The official document shall be written in accordance with the marking rules and the word targets specified in the thesaurus Mark the subject words according to the requirements of the higher authorities I. indexing rules 1., we should directly, accurately and objectively reflect the theme of the document discussion 2., the choice of words should generally be official Thesaurus in the official theme, and its written form should be consistent with the word form The 3. choice, should first choose the suitable document subject concept, refers to strong theme words 4. when there is no specific theme words strong, should be formally subject word selection and Thesaurus concept is closely related to the coordinate indexing Coordinate indexing should follow the following principles: priority should be given to the concept of coordination, relationship between concepts or concepts