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。
Credit: Exoticase。WPS下载最新地址是该领域的重要参考
Subscribe to a VPN (like ExpressVPN)，更多细节参见服务器推荐
Владимир Зеленский. Фото: PRESIDENT OF UKRAINE / Keystone Press Agency / Global Look Press
He said it was hoped the scheme could be expanded into island-wide services, with the pilot offering health and care services "a blueprint" to roll it out in other areas.