Sciweavers

5 search results - page 1 / 1
» On minimum k-modal partitions of permutations
Sort
View
JDA
2008
67views more  JDA 2008»
13 years 5 months ago
On minimum k-modal partitions of permutations
Partitioning a permutation into a minimum number of monotone subsequences is NP-hard. We extend this complexity result
Gabriele Di Stefano, Stefan Krause, Marco E. L&uum...
ISAAC
2004
Springer
106views Algorithms» more  ISAAC 2004»
13 years 10 months ago
Minimum Common String Partition Problem: Hardness and Approximations
String comparison is a fundamental problem in computer science, with applications in areas such as computational biology, text processing or compression. In this paper we address t...
Avraham Goldstein, Petr Kolman, Jie Zheng
CORR
2010
Springer
120views Education» more  CORR 2010»
12 years 12 months ago
LRM-Trees: Compressed Indices, Adaptive Sorting, and Compressed Permutations
LRM-Trees are an elegant way to partition a sequence of values into sorted consecutive blocks, and to express the relative position of the first element of each block within a prev...
Jérémy Barbay, Johannes Fischer
CORR
2010
Springer
97views Education» more  CORR 2010»
13 years 5 months ago
Bin Packing via Discrepancy of Permutations
A well studied special case of bin packing is the 3-partition problem, where n items of size > 1 4 have to be packed in a minimum number of bins of capacity one. The famous Kar...
Friedrich Eisenbrand, Dömötör P&aac...
SWAT
2010
Springer
250views Algorithms» more  SWAT 2010»
13 years 10 months ago
Fixed-Parameter Algorithms for Cochromatic Number and Disjoint Rectangle Stabbing
Given a permutation π of {1, . . . , n} and a positive integer k, we give an algorithm with running time 2O(k2 log k) nO(1) that decides whether π can be partitioned into at mos...
Pinar Heggernes, Dieter Kratsch, Daniel Lokshtanov...