Results 21 to 30 of about 1,667,563 (261)

A new approach to sequence comparison: normalized sequence alignment [PDF]

open access: yesBioinformatics, 2001
Abstract The Smith–Waterman algorithm for local sequence alignment is one of the most important techniques in computational molecular biology. This ingenious dynamic programming approach was designed to reveal the highly conserved fragments by discarding poorly conserved initial and terminal segments.
Abdullah N. Arslan   +2 more
openaire   +2 more sources

Comparative sequence, antigenic and phylogenetic analysis of avian influenza (H9N2) surface proteins isolated in Pakistan between 1999 and 2008

open access: yesJournal of Infection in Developing Countries, 2011
Introduction: Influenza A viruses possess a unique genomic structure which leads to genetic instability, especially in products of neuraminidase and hemagglutinin genes.
Azeem Mehmood Butt   +7 more
doaj   +1 more source

Characterisation of IncI1 plasmids associated with change of phage type in isolates of Salmonella enterica serovar Typhimurium

open access: yesBMC Microbiology, 2021
Background Acquisition of IncI1 plasmids by members of the Enterobacteriaceae sometimes leads to transfer of antimicrobial resistance and colicinogeny as well as change of phage type in Salmonella Typhimurium. Isolates of S.
Lester Hiley   +2 more
doaj   +1 more source

Strong and A-statistical comparisons for sequences

open access: yesJournal of Mathematical Analysis and Applications, 2003
Let \(B=(b_{nk})\) be a non-negative regular matrix and \(K \subseteq N=\{1,2, \dots\}\). If there exists \[ \delta_B(K)= \lim_{n\to \infty} \sum^\infty_{k=1} b_{nk}\chi(k) \] \(\chi\) being the characteristic function of \(K\), then \(\delta_B(K)\) is said to be the \(B\)-density of \(K\).
Demirci, Kamil   +2 more
openaire   +3 more sources

Bounds for parametric sequence comparison

open access: yes6th International Symposium on String Processing and Information Retrieval. 5th International Workshop on Groupware (Cat. No.PR00268), 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
David Fernández-Baca   +2 more
openaire   +2 more sources

Repeated Web Page Visits and the Scanpath Theory: A Recurrent Pattern Detection Approach

open access: yesJournal of Eye Movement Research, 2010
This paper investigates the eye movement sequences of users visiting web pages repeatedly. We are interested in potential habituation due to repeated exposure.
Michael Burmester, Marcus Mast
doaj   +1 more source

An alignment-free heuristic for fast sequence comparisons with applications to phylogeny reconstruction

open access: yesBMC Bioinformatics, 2020
Background Alignment-free methods for sequence comparisons have become popular in many bioinformatics applications, specifically in the estimation of sequence similarity measures to construct phylogenetic trees.
Sriram P. Chockalingam   +4 more
doaj   +1 more source

Gap Filling Method Based on Long Reads and Multiple Sequences Alignment [PDF]

open access: yesJisuanji gongcheng, 2021
Gap filling methods are helpful for obtaining more complete and accurate genome sequence,and thus assist in many studies on gene expression and regulation,structural variation analysis,and species evolution.Still,the accuracy and completeness of gap ...
WU Dong, WEI Yawei, LUO Junwei, AO Shan
doaj   +1 more source

Circular sequence comparison: algorithms and applications. [PDF]

open access: yesAlgorithms Mol Biol, 2016
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.
Grossi R   +6 more
europepmc   +6 more sources

Secure and private sequence comparisons [PDF]

open access: yesProceedings of the 2003 ACM workshop on Privacy in the electronic society, 2003
We give an efficient protocol for sequence comparisons of the edit-distance kind, such that neither party reveals anything about their private sequence to the other party (other than what can be inferred from the edit distance between their two sequences - which is unavoidable because computing that distance is the purpose of the protocol).
Mikhail J. Atallah   +2 more
openaire   +1 more source

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