特点：在 ReLU 的基础上引入概率思想，让激活与输入大小平滑相关。
Фото: Mario Anzuoni / Reuters
，详情可参考夫子
However, Kosmos 482's parachute system, originally intended to slow the lander's descent towards Venus, is likely to have degraded after more than 50 years in space.
System dialogs like password dialogs now have a blur effect in addition to the dim effect. Plus we made sure to disable hotcorners while they are present and fixed a bug that prevented using accessibility shortcuts—like zoom.