在深度学习中，有几类经典激活函数，每种都有自己的优缺点：
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* 时间复杂度: O(nlogn) 空间复杂度: O(1) 稳定: ✗。业内人士推荐91视频作为进阶阅读
黎智英欺詐案上訴得直：定罪及刑罰被撤銷，出獄時間提前