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A full-text database or a complete-text database is a database that contains the complete text of books, dissertations, journals, magazines, newspapers or other kinds of textual documents. They differ from bibliographic databases (which contain only bibliographical metadata , including abstracts in some cases) and non-bibliographic databases ...
Such services typically provide access to full text and full-text search, but also metadata about items for which no full text is available. This list focuses on general-purpose services; OpenDOAR can be used to find thousands of open-access repositories. The table is sorted by the number of works for which full-text is made available.
In text retrieval, full-text search refers to techniques for searching a single computer-stored document or a collection in a full-text database.Full-text search is distinguished from searches based on metadata or on parts of the original texts represented in databases (such as titles, abstracts, selected sections, or bibliographical references).
This ranking of results is a key difference of information retrieval searching compared to database searching. [2] Depending on the application the data objects may be, for example, text documents, images, [3] audio, [4] mind maps [5] or videos.
The other major video news service is Associated Press Television News. These two major agencies have agreements to exchange video news with ABC, NBC, CBS, CNN, and Eurovision—itself a sizeable video news exchange. [174] CNN International is a notable broadcaster in times of crisis. [160]
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Searching for textual content in databases or structured data formats (such as XML and CSV) presents special challenges and opportunities which specialized search engines resolve. Databases allow logical queries such as the use of multi-field Boolean logic, while full-text searches do not. "Crawling" (a human by-eye search) is not necessary to ...
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