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arXiv 1901.06152cs.LGq-bio.QMstat.ML
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基于机器学习和统计技术的蛋白质分类研究

Protein Classification using Machine Learning and Statistical Techniques: A Comparative Analysis

Dr. A. P. J. Abdul Kalam Technical University(阿卜杜勒·卡拉姆博士技术大学);National Institute of Technology Patna(巴特那国家理工学院);R.E. C. Ambedkar Nagar(安贝德卡纳尔工程学院)

Chhote Lal Prasad Gupta, Anand Bihari, Sudhakar Tripathi

摘要:

从未知蛋白质中预测酶的种类是近年来生物信息学中的一项挑战性任务。随着蛋白质数量的不断增加,酶类的预测给生物信息学工作者带来了新的机遇。本文的主要目标是实现机器学习分类技术的特征选择和预测,并找到一个适当的分类技术的功能预测。本文采用CRT、QUEST、CHAID、C5.0、ANN(Artificial神经网络)、SVM和Bayesian等七种不同的分类技术对UniprotKB数据库中的4368个蛋白质数据进行分类,并将其分为六类。蛋白质数据是高维序列数据,最多包含48个特征,为了对高维序列蛋白质数据进行不同的分类,本文使用SPSS作为实验工具。不同的分类技术对每个模型给出不同的结果,并显示C4、C5和C6类的数据不平衡。数据的不平衡影响模型的性能。在这三个类中,查准率和查全率值非常小或可以忽略不计。实验结果表明,C5.0分类技术的准确性更适合于蛋白质特征分类和预测。C5.0分类技术给出了95.56%的准确率,也给出了高精度和召回值。最后,我们得出结论,所选择的功能可以用于功能预测。

英文摘要:

In recent era prediction of enzyme class from an unknown protein is one of the challenging tasks in bioinformatics. Day to day the number of proteins is increases as result the prediction of enzyme class gives a new opportunity to bioinformatics scholars. The prime objective of this article is to implement the machine learning classification technique for feature selection and predictions also find out an appropriate classification technique for function prediction. In this article the seven different classification technique like CRT, QUEST, CHAID, C5.0, ANN (Artificial Neural Network), SVM and Bayesian has been implemented on 4368 protein data that has been extracted from UniprotKB databank and categories into six different class. The proteins data is high dimensional sequence data and contain a maximum of 48 features.To manipulate the high dimensional sequential protein data with different classification technique, the SPSS has been used as an experimental tool. Different classification techniques give different results for every model and shows that the data are imbalanced for class C4, C5 and C6. The imbalanced data affect the performance of model. In these three classes the precision and recall value is very less or negligible. The experimental results highlight that the C5.0 classification technique accuracy is more suited for protein feature classification and predictions. The C5.0 classification technique gives 95.56% accuracy and also gives high precision and recall value. Finally, we conclude that the features that is selected can be used for function prediction.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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