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inverted index
<database, information science> A sequence of (key, pointer)
pairs where each pointer points to a record in a database
which contains the key value in some particular field. The
index is sorted on the key values to allow rapid searching for
a particular key value, using e.g. binary search. The index
is "inverted" in the sense that the key value is used to find
the record rather than the other way round. For databases in
which the records may be searched based on more than one
field, multiple indices may be created that are sorted on
those keys.
An index may contain gaps to allow for new entries to be added
in the correct sort order without always requiring the
following entries to be shifted out of the way.
(1995-02-08)
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Nearby terms:
inverse « Inverse Address Resolution Protocol « inverse comment convention « inverted index » InWorld VR » IO » io
This article was derived from the Free Online Dictionary of Computers and is available under ther terms of the GNU Free Documentation License.
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