The accuracy of prediction of BP neural networks model is higher than that of factor analysis.
BP神经网络的预测精度高于线性统计模型。
In order to predict coal bed gas content quantitatively, a BP neural networks model was established using a BP neural networks prediction method.
为了对煤层含气量进行定量预测，采用BP神经网络预测方法，建立了煤层含气量预测的BP神经网络模型。
BP neural networks model of the main spindle system of the grinder is built and the structure model updating and optimization calculation are carried through based on the method.
基于此法建立了磨床主轴系统的BP神经网络模型并进行了结构修正与优化计算。
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