def _init_weights(self): for m in self.modules(): if type(m) in { nn.Linear, nn.Conv3d, }: nn.init.kaiming_normal_( m.weight.data, a=0, mode='fan_out', nonlinearity='relu', ) if m.bias is not None: fan_in, fan_out = \ nn.init._calculate_fan_in_and_fan_out(m.wei...
torch.nn.init.xavier_normal(m.weight.data) ifm.biasisnotNone: m.bias.data.zero_() 上面代码表示用xavier_normal方法对该层的weight初始化,并判断是否存在偏执bias,若存在,将bias初始化为0。 4 尺寸计算与参数计算 我们把上面的主函数部分改成:...
init_weights() def init_weights(self): self.conv1.weight.data.normal_(0, 0.01) self.conv2.weight.data.normal_(0, 0.01) if self.downsample is not None: self.downsample.weight.data.normal_(0, 0.01) def forward(self, x): out = self.net(x) res = x if self.downsample is None ...
definit_weights(m):iftype(m)==nn.Linear:nn.init.xavier_normal_(m.weight)# 使用Xavier正态分布初始化权重nn.init.zeros_(m.bias)# 将偏置初始化为0model=MyModel()model.apply(init_weights) 1. 2. 3. 4. 5. 6. 7. 在上述代码中,我们定义了一个init_weights函数,该函数会初始化线性层的权重...
编写好weights_init函数后,可以使用模型的apply方法对模型进行权重初始化。 代码语言:javascript 复制 net=Residual()# generate an instance network from the Netclassnet.apply(weights_init)# apply weight init
def weights_init(m): classname = m.__class__.__name__ if classname.find('Conv') != -1: m.weight.data.normal_(0.0, 0.02) elif classname.find('BatchNorm') != -1: m.weight.data.normal_(1.0, 0.02) m.bias.data.fill_(0) ...
weights_init(): 用来初始化模型 model.apply():实现初始化 # coding:utf-8fromtorch import nn def weights_init(mod):"""设计初始化函数"""classname=mod.__class__.__name__ # 返回传入的module类型 print(classname)ifclassname.find('Conv')!= -1: #这里的Conv和BatchNnorm是torc.nn里的形式 ...
人们常常将各种初始化方法定义为一个initialize_weights()的函数并在模型初始后进行使用。 123456789101112131415 def initialize_weights(self): for m in self.modules(): # 判断是否属于Conv2d if isinstance(m, nn.Conv2d): torch.nn.init.xavier_normal_(m.weight.data) # 判断是否有偏置 if m.bias is no...
简单地说就是设定什么层用什么初始方法,初始化的方法会在torch.nn.init中 话不多说,看一个案例: # 定义权值初始化definitialize_weights(self):forminself.modules():ifisinstance(m,nn.Conv2d): torch.nn.init.xavier_normal_(m.weight.data)ifm.biasisnotNone: ...
PyTorch肯定会默认初始化权重的,比如nn.init.kaiming_normal_等。一般在深度学习领域中,权重初始化可以...