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Optimal Partitioning of Sequences
The problem of partitioning a sequence of n real numbers into p intervals is considered. The goal is to find a partition such that the cost of the most expensive interval measured with a cost function ƒ is minimized. An efficient algorithm which solves the problem in time O(( n − p) p log p) is deve...
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Published in: | Journal of algorithms 1995-09, Vol.19 (2), p.235-249 |
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Main Authors: | , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that cite this one |
Online Access: | Get full text |
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Summary: | The problem of partitioning a sequence of
n real numbers into
p intervals is considered. The goal is to find a partition such that the cost of the most expensive interval measured with a cost function ƒ is minimized. An efficient algorithm which solves the problem in time
O((
n −
p)
p log
p) is developed. The algorithm is based on finding a sequence of feasible nonoptimal partitions, each having only one way it can be improved to get a better partition. Finally a number of related problems are considered and shown to be solvable by slight modifications of our main algorithm. |
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ISSN: | 0196-6774 1090-2678 |
DOI: | 10.1006/jagm.1995.1035 |