为什么需要非线性？ 想象一下，如果网络里每一层都是线性的（比如 y=Wx+b），无论堆叠多少层，最终网络都只是一条线性映射。深度堆叠就没有意义了，网络的表达能力非常有限。
В России ответили на имитирующие высадку на Украине учения НАТО18:04
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Медведев вышел в финал турнира в Дубае17:59。关于这个话题，WPS下载最新地址提供了深入分析