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线上测试集都由难样本组成，和训练集不一致，请问有什么迭代模型的技巧吗？ #2

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SCZwangxiao opened this issue Jul 5, 2022 · 0 comments
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线上测试集都由难样本组成，和训练集不一致，请问有什么迭代模型的技巧吗？ #2

SCZwangxiao opened this issue Jul 5, 2022 · 0 comments

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@SCZwangxiao
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线上测试集都是比较难的样本，我在比赛的时候时常发现，自己划分的验证集结果提升和线上的不一致。例如我尝试难样本挖掘，在自己划分的（多个）验证集上就没有收益。
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