Optimal Partitioning of Sequences
โ Scribed by F. Manne; T. Sorevik
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 621 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0196-6774
No coin nor oath required. For personal study only.
โฆ Synopsis
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 (f) 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. 1995 Academic Press, Inc.
๐ SIMILAR VOLUMES
Decision tree methods generally suppose that the number of categories of the attribute to be predicted is fixed. Breiman et al., with their Twoing criterion in CART, considered gathering the categories of the predicted attribute into two supermodalities. In this article, we propose an extension of t
We consider the problem of partitioning the vertex-set of a tree to p parts to minimize a cost function. Since the number of partitions is exponential in the number of vertices, it is helpful to identify small classes of partitions which also contain optimal partitions. Two such classes, called cons