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KMID : 1132720040020030121
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Genomics & Informatics
2004 Volume.2 No. 3 p.121 ~ p.125
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Application of Decision Tree for the Classification of Antimicrobial Peptide
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Lee Su-Yeon
Kim Sun-Kyu
Kim Suk-Won
Cha Seon-Jeong
Moon Byung-Ro
Kwon Young-Keun
Lee Byeong-Jae
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Abstract
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The purpose of this study was to investigate the use of decision tree for the classification of antimicrobial peptides. The classification was based on the activities of known antimicrobial peptides against common microbes including scherichia coli and Staphylococcus aureus. A feature selection was employed to select an effective subset of features from available attribute sets. Sequential applications of decision tree with 17 nodes with 9 leaves and 13 nodes with 7 leaves provided the
classification rates of 76.74% and 74.66% against E. coli and S. aureus, respectively. Angle subtended by positively
charged face and the positive charge commonly gave higher accuracies in both E. coli and S. aureus datasets. In this study, we describe a successful application of decision tree that provides the understanding of the effects of physicochemical characteristics of peptides on bacterial membrane.
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KEYWORD
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decision tree, classification, antimicrobial peptides
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