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An assessment of neural network and statistical approaches for prediction of E. coli promoter sites.

机译:用于预测大肠杆菌启动子位点的神经网络和统计方法的评估。

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摘要

We have constructed a perceptron type neural network for E. coli promoter prediction and improved its ability to generalize with a new technique for selecting the sequence features shown during training. We have also reconstructed five previous prediction methods and compared the effectiveness of those methods and our neural network. Surprisingly, the simple statistical method of Mulligan et al. performed the best amongst the previous methods. Our neural network was comparable to Mulligan's method when false positives were kept low and better than Mulligan's method when false negatives were kept low. We also showed the correlation between the prediction rates of neural networks achieved by previous researchers and the information content of their data sets.
机译:我们已经构建了用于大肠杆菌启动子预测的感知器型神经网络,并通过选择训练过程中显示的序列特征的新技术提高了泛化能力。我们还重构了五个先前的预测方法,并比较了这些方法和神经网络的有效性。令人惊讶的是,Mulligan等人的简单统计方法。在以前的方法中表现最好。当误报率保持在较低水平时,我们的神经网络可与Mulligan方法相提并论;当误报率保持在较低水平时,我们的神经网络优于Mulligan方法。我们还显示了以前的研究人员获得的神经网络的预测率与其数据集的信息内容之间的相关性。

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