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INFERRING GENE REGULATORY NETWORKS BY MACHINE LEARNING METHODS

机译:通过机器学习方法推断基因监管网络

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The ability to measure the transcriptional response after a stimulus has drawn much attention to the underlying gene regulatory networks. Several machine learning related methods, such as Bayesian networks and decision trees, have been proposed to deal with this difficult problem, but rarely a systematic comparison between different algorithms has been performed. In this work, we critically evaluate the application of multiple linear regression, SVMs, decision trees and Bayesian networks to reconstruct the budding yeast cell cycle network. The performance of these methods is assessed by comparing the topology of the reconstructed models to a validation network. This validation network is defined a priori and each interaction is specified by at least one publication. We also investigate the quality of the network reconstruction if a varying amount of gene regulatory dependencies is provided a priori.
机译:在刺激后测量转录响应的能力绘制了潜在的基因监管网络。已经提出了几种机器学习相关方法,例如贝叶斯网络和决策树,以处理这一难题,但很少已经执行了不同算法之间的系统比较。在这项工作中,我们批判性地评估了多元线性回归,SVM,决策树和贝叶斯网络的应用来重建萌芽酵母细胞周期网络。通过将重建模型的拓扑与验证网络进行比较来评估这些方法的性能。该验证网络定义了先验,并且每个交互由至少一个发布指定。如果提供了优化的基因调节依赖性,我们还研究了网络重建的质量。

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