Google says it created a mathematical algorithm that greatly improves this accuracy rate.

谷歌表示，它创建了一种数学算法，可以大大提高这种准确率。

Dr Hinton popularised a clever mathematical algorithm known as backpropagation to solve this problem in artificial neural networks.

辛顿博士推广了一种称为反向传播的巧妙的数学算法来解决人工神经网络中的这个问题。