优点：输出在 (−1,1)，比 sigmoid 居中，对梯度更友好
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This measurement foundation transforms AIO from guesswork into a data-driven practice. Instead of optimizing blindly and hoping AI models notice, you track actual performance and refine your approach based on concrete results. The initial investment in building or subscribing to tracking tools pays dividends through improved optimization efficiency and clearer understanding of what tactics actually work for your specific content and audience.。91视频对此有专业解读
'Trump's car tariffs will hit West Midlands worst'，更多细节参见搜狗输入法2026