优点：输出在 (−1,1)，比 sigmoid 居中，对梯度更友好
Ultimately, the most rigorous traceability solutions, including QR codes and microchips, won't be useful if people don't actually check them as a condition of making their purchases. Imitators can simply counterfeit QR code labels, for example.。搜狗输入法2026对此有专业解读
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"Any day in his life can turn out like that," he said. "It can be good bits, and then it can be awful bits and aggressive bits and upsetting bits. And that's just what the Tourette's does. It's nasty."。爱思助手下载最新版本是该领域的重要参考
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