问答 2022-03-15 来自:开发者社区

天猫精灵AI开发Inside设备时为什么添加调试设备呢?

天猫精灵AI开发Inside设备时为什么添加调试设备呢?

文章 2022-02-17 来自:开发者社区

【学习记录】《DeepLearning.ai》第七课:超参数调试、Batch正则化和程序框架

第七课:超参数调试、Batch正则化和程序框架7.1 调试处理(Tuning process)我们通常需要处理超参数,如上图。第一个是学习率,第二个是Moentum(动量梯度下降法)的参数,如果使用了Adam优化算法,也需要调整第三个参数,第三行参数一般有默认值,如图所示。第四行表示神经网络的层数,第五行是隐藏单元数量,第六行是学习率衰减,第七行是mini-batch的尺寸。对于参数进行随机取值....

【学习记录】《DeepLearning.ai》第七课:超参数调试、Batch正则化和程序框架
文章 2022-02-17 来自:开发者社区

DeepLearning.ai学习笔记(二)改善深层神经网络:超参数调试、正则化以及优化--Week2优化算法

1. Mini-batch梯度下降法 介绍 假设我们的数据量非常多,达到了500万以上,那么此时如果按照传统的梯度下降算法,那么训练模型所花费的时间将非常巨大,所以我们对数据做如下处理: 如图所示,我们以1000为单位,将数据进行划分,令\(x^{\{1\}}=\{x^{(1)},x^{(2)}……x^{(5000)}\}\), 一般地用\(x^{\{t\}},y^{\{t\}}\)来表示划分.....

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