Batch training of network makes weight vectors and its partial derivative vectors proportionally follow the change of all training vectors.
网络成批训练，使得权重矢量和偏导数矢量都同时与所有训练矢量的变化成正比地改变。
The first and the second derivative of the actual amount removed from the workpiece were added into the network input to improve the prediction accuracy.
为了提高尺寸预测的准确性，将实际磨削尺寸的一阶导数和二阶导数做为网络的输入。
The numerical partial derivative is introduced to simplify the GPS network adjustment model.
采用数值微商求偏导数的方法，从而使GPS网平差的计算模型非常简洁。
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