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A list of writings related to a specific subject, writings by a specific author, or writings used in producing a specific text. Bibliographic database Is a computer based list of library resources. Typically each record contains the call number, author, title, publishing information, and other card catalog information.
the article about bibliographic databases for information about databases giving bibliographic information about finding books and journal articles. Note that "free" or "subscription" can refer both to the availability of the database or of the journal articles included. This has been indicated as precisely as possible in the lists below.
Many journals and databases provide access to index terms made by authors of the respective articles. How qualified the provider is decides the quality of both indexer-provided index terms and author-provided index terms. The quality of these two types of index terms is of research interest, particularly in relation to information retrieval.
A thesaurus is composed by at least three elements: 1-a list of words (or terms), 2-the relationship amongst the words (or terms), indicated by their hierarchical relative position (e.g. parent/broader term; child/narrower term, synonym, etc.), 3-a set of rules on how to use the thesaurus.
In the case of document retrieval, queries can be based on full-text or other content-based indexing. Information retrieval is the science [1] of searching for information in a document, searching for documents themselves, and also searching for the metadata that describes data, and for databases of texts, images or sounds.
These global clusters or their representatives can then be used to relate relevance of two documents (e.g. two documents in the same cluster should both be relevant to the same request). Methods in this spirit include: cluster-based information retrieval [5] [6]
You can improve this article by using ideal sources as references to support medical and health content added to this article. These sources are defined in the guideline Wikipedia:Identifying reliable sources (medicine). Medical text books, governmental health agencies and medical review articles are excellent sources.
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