(algorithmic technique)
Definition: Find an optimal value by eliminating a constant fraction of remaining objects at each step. Eliminated objects are guaranteed not to affect the optimal value. A logarithmic number of steps reduces the number of objects to a constant, and a brute force approach can then solve it.
Also known as decimation.
Note: Adapted from [AS98, page 422].
Author: PEB
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Entry modified 4 February 2005.
HTML page formatted Mon Feb 2 13:10:40 2015.
Cite this as:
Paul E. Black, "prune and search", in
Dictionary of Algorithms and Data Structures [online], Vreda Pieterse and Paul E. Black, eds. 4 February 2005. (accessed TODAY)
Available from: http://www.nist.gov/dads/HTML/pruneNsearch.html