激活函数的作用 激活函数在每个神经元输出前进行非线性变换，让网络可以拟合复杂的函数关系，从而解决分类、回归等非线性问题。
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Flexibility Clash: CH typically pre-calculates optimal paths. Supporting OsmAnd's 10+ routing parameters (leading to over 1024 combinations per profile!) would be impossible with standard CH.，更多细节参见搜狗输入法2026