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BN BatchNorm + BatchNorm的替代新方法KNConvNets
2022-08-01 19:02:00 【FakeOccupational】
BatchNorm
- 批量归一化,通过减少内部协变量平移加速深度网络训练。BatchNorm pytorch官方文档

- BatchNorm对于一个[0,1,2,3]的二维数据,是对1位置的数据计算矩阵方差并归一化的。一般所对应的数据一般是[B,C,H,W],所以是对数据的channel维度进行的归一化。
KNConvNets(核规范化卷积网络)
- 现有的深度卷积神经网络 (CNN) 架构经常依赖于批处理规范化 (BatchNorm) 来有效地训练模型。BatchNorm 显著提高了模型性能,但在批大小较小的情况下性能较差。为了解决这一限制,我们提出了核归一化和核归一化卷积层,并将它们合并到核归一化卷积网络(KNConvNets)中作为主要构建块。我们实现了与最先进的 CNN(如 ResNet 和 DenseNet)相对应的 KNConvNet,同时放弃了 BatchNorm 层。通过广泛的实验,我们证明了KNConvNets在准确性和收敛率方面始终优于其批处理,组和层归一化对应物,同时保持了具有竞争力的计算效率。



实验结果


参考与更多
BatchNorm2d添加链接描述Pytorch BN(BatchNormal)计算过程与源码分析和train与eval的区别
BatchNorm的“平替”?TUM提出KNConvNets,消除CNN中BatchNorm的缺点
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