Title
Circular sequence comparison: algorithms and applications.
Abstract
Sequence comparison is a fundamental step in many important tasks in bioinformatics; from phylogenetic reconstruction to the reconstruction of genomes. Traditional algorithms for measuring approximation in sequence comparison are based on the notions of distance or similarity, and are generally computed through sequence alignment techniques. As circular molecular structure is a common phenomenon in nature, a caveat of the adaptation of alignment techniques for circular sequence comparison is that they are computationally expensive, requiring from super-quadratic to cubic time in the length of the sequences.In this paper, we introduce a new distance measure based on q-grams, and show how it can be applied effectively and computed efficiently for circular sequence comparison. Experimental results, using real DNA, RNA, and protein sequences as well as synthetic data, demonstrate orders-of-magnitude superiority of our approach in terms of efficiency, while maintaining an accuracy very competitive to the state of the art.
Year
DOI
Venue
2016
10.1186/s13015-016-0076-6
Algorithms for Molecular Biology
Keywords
Field
DocType
Synthetic Data, Suffix Array, Pairwise Sequence Alignment, Random Dataset, Circular String
Sequence alignment,Alignment-free sequence analysis,Computer science,Phylogenetic reconstruction,Pairwise sequence alignment,Algorithm,Suffix array,Synthetic data,Bioinformatics
Journal
Volume
Issue
ISSN
11
1
1748-7188
Citations 
PageRank 
References 
7
0.73
26
Authors
7
Name
Order
Citations
PageRank
Roberto Grossi158157.47
Costas S. Iliopoulos21534167.43
Robert Mercas36912.83
Nadia Pisanti430230.91
Solon P. Pissis528157.09
Ahmad Retha6162.98
Fatima Vayani7253.85