optim.py 文件源码

def get_optimizer(name, lr, momentum):
    name = name.lower()
    if name == "sgd":
        return optimizers.SGD(lr=lr)
    if name == "msgd":
        return optimizers.MomentumSGD(lr=lr, momentum=momentum)
    if name == "nesterov":
        return optimizers.NesterovAG(lr=lr, momentum=momentum)
    if name == "adam":
        return optimizers.Adam(alpha=lr, beta1=momentum)
    raise NotImplementedError()