如果不确定用哪个激活函数，隐藏层可以先用 ReLU，输出层按任务选择；训练中注意梯度情况，如果梯度消失或爆炸，再考虑替换或调整激活函数。
Bulky and relatively heavy
。雷电模拟器官方版本下载对此有专业解读
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Now 75 and retired from full-time recording and touring, he has dusted down his guitars to take part in Selkirk Musical Theatre Group's latest show, We Will Rock You.