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machine2deeplearning_lab's Issues

深度学习的分类任务数据划分方式

分类任务的深度学习模型,在将数据划分为训练集和测试集时,使用的是torch.utils.data的random_split方法,该方法没有考虑类别不均衡现象,当数据样本类别极度不均衡时,训练集和测试集的数据分布会非常不同,由训练集训练的模型,就不可能在测试集上表现良好,需要修改。

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