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Locality-preserving hashing

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This is an old revision of this page, as edited by Jitse Niesen (talk | contribs) at 23:13, 14 January 2006 (copyedit). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

In computer science, a locality preserving hashing is a hash function f that maps a point in a multidimensional coordinate space to a scalar value, such that if we have three points A, B and C such that distance(A, B) < distance(B, C), then abs(f(A) − f(B)) < abs(f(B) − f(C)).