Title
On the Exact Block Cover Problem.
Abstract
Minimum Common String Partition (MCSP) has drawn a lot of attention due to its application in genome rearrangement. The best approximation algorithm has a factor O(log n log* n) and it was shown most recently that it is FPT (but with a very high running time). In this paper, we consider the decision version of the one-sided MCSP problem (formally called the exact block cover problem); namely, when one sequence is already partitioned into k blocks, how to decide whether the other sequence can be partitioned accordingly. While this decision problem is obviously in FPT, we show interesting results in this paper: (1) If each letter is allowed to appear at most twice (or three times), then the problem is polynomially solvable, (2) There is an FPT algorithm which runs in O*(2(k)) time, improving the trivial bound of O*(k!), and (3) If vertical bar Sigma vertical bar = c, c being a constant at least 2, then the problem is NP-complete.
Year
DOI
Venue
2014
10.1007/978-3-319-07956-1_2
ALGORITHMIC ASPECTS IN INFORMATION AND MANAGEMENT, AAIM 2014
Field
DocType
Volume
Edit distance,Dynamic programming,Approximation algorithm,Combinatorics,Decision problem,Edge cover,Computer science,Bipartite graph,Genome rearrangement,Partition (number theory)
Conference
8546
ISSN
Citations 
PageRank 
0302-9743
4
0.59
References 
Authors
9
6
Name
Order
Citations
PageRank
Haitao Jiang1407.94
Bing Su2174.72
Mingyu Xiao316124.70
Yinfeng Xu41636108.18
Farong Zhong54611.94
Binhai Zhu6903109.96