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Reseach Article

Propose a Substitution Model for DNA Data Compression

by Ayad E. Korial, Ali Kamal Taqi
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 179 - Number 39
Year of Publication: 2018
Authors: Ayad E. Korial, Ali Kamal Taqi
10.5120/ijca2018916484

Ayad E. Korial, Ali Kamal Taqi . Propose a Substitution Model for DNA Data Compression. International Journal of Computer Applications. 179, 39 ( May 2018), 20-26. DOI=10.5120/ijca2018916484

@article{ 10.5120/ijca2018916484,
author = { Ayad E. Korial, Ali Kamal Taqi },
title = { Propose a Substitution Model for DNA Data Compression },
journal = { International Journal of Computer Applications },
issue_date = { May 2018 },
volume = { 179 },
number = { 39 },
month = { May },
year = { 2018 },
issn = { 0975-8887 },
pages = { 20-26 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume179/number39/29338-2018916484/ },
doi = { 10.5120/ijca2018916484 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-07T00:57:52.455875+05:30
%A Ayad E. Korial
%A Ali Kamal Taqi
%T Propose a Substitution Model for DNA Data Compression
%J International Journal of Computer Applications
%@ 0975-8887
%V 179
%N 39
%P 20-26
%D 2018
%I Foundation of Computer Science (FCS), NY, USA
Abstract

One of the most difficult challenges in lossless data compression is finding the right model for the Deoxyribonucleic Acid (DNA) compression. DNA sequences include four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T) where the information in DNA is stored as a code made up of these four chemical bases and these sequences show these are not random, if they are totally random then store them in two bits, this is the most efficient and logical way. This paper proposed an algorithm called A2 for DNA data compression. The proposed algorithm consists of four stages to build a substitutional model. The first stage used a modified version of run-length coding, in second and third stages mapping model for formatting data to be suitable for the final stage fed into Burrows-Wheeler Transform to use permutation technique that group related symbols as possible to improve dictionary coding using Lempel-Ziv (LZ77) and output file stored as (.a2) extension. The A2 algorithm implemented and tested on data from GenBank and shows acceptable file size and processing time ratio.

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Index Terms

Computer Science
Information Sciences

Keywords

DNA compression Compression Model Run-length coding Mapping Table BWT Dictionary Coding A2 algorithm.