Title
An Omega(n2/log n) speed-up of TBR heuristics for the gene-duplication problem
Abstract
The gene-duplication problem is to infer a species supertree from gene trees that are confounded by complex histories of gene duplications. This problem is NP-hard and thus requires efficient and effective heuristics. Existing heuristics perform a stepwise search of the tree space, where each step is guided by an exact solution to an instance of a local search problem. We improve on the time complexity of the local search problem by a factor of n(2)/log n, where n is the size of the resulting species supertree. Typically, several thousand instances of the local search problem are solved throughout a stepwise heuristic search. Hence, our improvement makes the gene-duplication problem much more tractable for large-scale phylogenetic analyses.
Year
Venue
DocType
2007
ALGORITHMS IN BIOINFORMATICS, PROCEEDINGS
Conference
Volume
ISSN
Citations 
4645
0302-9743
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Mukul S. Bansal129423.97
Oliver Eulenstein250552.71