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  2. Index term - Wikipedia

    en.wikipedia.org/wiki/Index_term

    In information retrieval, an index term (also known as subject term, subject heading, descriptor, or keyword) is a term that captures the essence of the topic of a document. Index terms make up a controlled vocabulary for use in bibliographic records .

  3. Index (publishing) - Wikipedia

    en.wikipedia.org/wiki/Index_(publishing)

    An index (pl.: usually indexes, more rarely indices) is a list of words or phrases ('headings') and associated pointers ('locators') to where useful material relating to that heading can be found in a document or collection of documents. Examples are an index in the back matter of a book and an index that serves as a library catalog.

  4. Subject indexing - Wikipedia

    en.wikipedia.org/wiki/Subject_indexing

    The index terms were mostly assigned by experts but author keywords are also common. The process of indexing begins with any analysis of the subject of the document. The indexer must then identify terms which appropriately identify the subject either by extracting words directly from the document or assigning words from a controlled vocabulary ...

  5. Library of Congress Subject Headings - Wikipedia

    en.wikipedia.org/wiki/Library_of_Congress...

    Subject heading is a human and intellectual endeavor, by which trained professionals apply topic descriptions to items in their collections. Without a uniform standard, each library might choose to categorize the subject matter of their items differently.

  6. Medical Subject Headings - Wikipedia

    en.wikipedia.org/wiki/Medical_Subject_Headings

    Medical Subject Headings (MeSH) is a comprehensive controlled vocabulary for the purpose of indexing journal articles and books in the life sciences.It serves as a thesaurus that facilitates searching.

  7. Indexing head - Wikipedia

    en.wikipedia.org/wiki/Indexing_head

    An indexing head, also known as a dividing head or spiral head, [1] is a specialized tool that allows a workpiece to be circularly indexed; that is, easily and precisely rotated to preset angles or circular divisions.

  8. Help:Section - Wikipedia

    en.wikipedia.org/wiki/Help:Section

    Please do not use a "level one" heading (only one equals sign on each side, i.e.: =Heading=). This would cause a section heading as large as the page title at the top of the page. The maximum level number is six. Heading names of sections (including subsections) should be unique on a page.

  9. Search engine indexing - Wikipedia

    en.wikipedia.org/wiki/Search_engine_indexing

    The forward index is sorted to transform it to an inverted index. The forward index is essentially a list of pairs consisting of a document and a word, collated by the document. Converting the forward index to an inverted index is only a matter of sorting the pairs by the words. In this regard, the inverted index is a word-sorted forward index.