# 迭代次数epochs

使用early-stopping策略确定迭代次数

问：什么是early-stopping策略？ 答：early-stopping策略是指当验证数据集的准确率达到饱和时停止迭代。

问：怎样算达到饱和？\
答：例如最近10次迭代的准确率都没有提升。

问：为什么是10次？\
10是一个经验数字。一开始可以稍微小一点。到后面应该适当调大。

早期不需要使用early-stoping策略停止迭代，因为需要overfitting的结果来调正则化参数。


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