NDLI: A modified Kohonen network for DNA splice junction classification

Content Provider	IEEE Xplore Digital Library
Author	Naenna, T. Bress, R.A. Embrechts, M.J.
Copyright Year	2004
Description	Author affiliation: Dept. of Ind. Eng., Mahidol Univ., Nakornpathom, Thailand (Naenna, T.)
Abstract	This paper describes an application of Kohonen network, self-organizing maps (SOMs), for exon/intron classification in DNA using windowed splice junction data. Splice junctions are groups of nucleotides that serve as boundaries between sections of DNA that code for genetic material and sections that do not. Genes are often interrupted by sections of noncoding DNA sequences. The data used for this study is human DNA data taken from the National Center for Bioinformatics Information (http://www.ncbi.nih.gov/). The DNA dataset contains 1,424 DNA sequences with 128 descriptors for each sequence. SOMs were used to classify each DNA sequence into three categories that are sequences that transition from gene (exon) to nongene (intron), nongene (intron) to gene (exon), and no transition categories where the two-basepair code for the splice junction was coincidental. The multidimensional sequences are clustered into a two-dimensional space that was graphically displayed for data exploration and classification. Visual and graphical capabilities of SOMs are applied to classify the DNA dataset. The topographic properties of SOMs preserve similar sequences close to each other on the output map. Clusters of the dataset are determined and labeled based on the classes of the output neuron in the cluster. The highest frequency classes mapped on the output neuron are labeled as the classes of the output neurons.
Sponsorship	IEEE Region 10
Starting Page	215
Ending Page	218
File Size	1924615
Page Count	4
File Format	PDF
ISBN	0780385608
DOI	10.1109/TENCON.2004.1414570
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-11-24
Publisher Place	Thailand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	DNA Sequences Neurons Self organizing feature maps Genetics Biological materials Humans Bioinformatics Multidimensional systems Frequency
Content Type	Text
Resource Type	Article

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