activation function

例句：

1. 1.The activation function is used to determine the output of a neural network.
   激活函数用于确定神经网络的输出。
2. 2. In machine learning, the activation function is crucial for determining the behavior of the model.
   在机器学习中，激活函数对于确定模型的行为至关重要。
3. 3.The activation function helps to prevent overfitting and improves the generalization ability of the model.
   激活函数有助于防止过拟合并提高模型的泛化能力。