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大部分机器学习算法具有随机性，只需多次实验求平均值即可吗？ - 知乎
source link: https://www.zhihu.com/question/328157418/answer/746533382
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从统计学角度看：用平均值代替期望是非常自然的手段。从实用角度看这个操作也很常见，绝大部分应用如果开…
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