this model to bear on
AI硬件与视听娱乐：重新定义人与科技的互动方式
，这一点在服务器推荐中也有详细论述
The A/D bits exist entirely for the operating system's benefit. The Accessed bit tells the OS which pages have been recently used, enabling page replacement algorithms to choose pages to evict when memory runs low. The Dirty bit tells the OS which pages have been modified and must be written back to disk before eviction; clean pages can simply be discarded and re-read from disk later.
激活函数虽然只是神经元里的一小步，但却是深度学习的一大步。没有它，深度学习就不会有今天的辉煌。它让神经网络从“线性堆叠”变成了真正的“非线性智能体”，能够处理复杂的视觉、语言和跨模态任务。