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multimodal_rbm's Introduction

multimodal_rbm

在coding过程中,了解到一些东西:
1.权重得初始化时应使用较小值,如果过大,将会导致初始值得激活值逼近1,使得在反向传播得过程中,
梯度消失,进而使得模型梯度下降法失效。
2.修改了交叉熵正负号
3.不能理解pretraining与finetune的优势在哪里

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