优点：输出在 (−1,1)，比 sigmoid 居中，对梯度更友好
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蜜雪冰城要在河南老家建“雪王乐园”
Last year a group of researchers from Nasa, the University of Plymouth and University of Texas called on the UN to include the protection of Earth's orbit in its sustainable development goals.。关于这个话题，一键获取谷歌浏览器下载提供了深入分析