Title
A parallel LCS algorithm for biosequences alignment
Abstract
Searching for the longest common substring (LCS) of biosequences is one of the most important tasks in Bioinformatics. A fast algorithm for LCS problem named FAST_LCS is presented. The algorithm first seeks the successors of the initial identical character pairs according to a successor table to obtain all the identical pairs and their levels. Then by tracing back from the identical character pair at the largest level, the result of LCS can be obtained. For two sequences X and Y with lengths n and m, the memory required for FAST_LCS is max{8*(n+1)+8*(m+1),L}, here L is the number of identical character pairs and time complexity of parallel implementation is O(|LCS(X, Y)|), here, |LCS(X, Y)| is the length of the LCS of X, Y. Experimental result on the gene sequences of tigr database shows that our algorithm can get exactly correct result and is faster and more efficient than other LCS algorithms.
Year
Venue
Keywords
2007
Infoscale
gene sequence,sequences x,lcs problem,biosequences alignment,lcs algorithm,fast algorithm,initial identical character pair,y. experimental result,parallel lcs algorithm,correct result,identical pair,identical character pair,time complexity,bioinformatics,parallel processing
Field
DocType
Citations 
Longest common subsequence problem,Computer science,Parallel processing,Time complexity,Tracing,Longest common substring problem,Distributed computing
Conference
1
PageRank 
References 
Authors
0.38
14
3
Name
Order
Citations
PageRank
Wei Liu110.38
Ling Chen2426.49
Lingjun Zou3312.38