导入VisionTransformer这个类,注册器register_model,以及初始化函数trunc_normal_: from timm.models.vision_transformer import VisionTransformer, _cfg from timm.models.registry import register_model from timm.models.layers import trunc_normal_ DeiT的class名称是DistilledVisionTransformer,它直接继承了VisionTransformer...
import torchimport torch.nn as nnimport torch.nn.functional as F from timm.data import IMAGENET_DEFAULT_MEAN, IMAGENET_DEFAULT_STDfrom .helpers import load_pretrainedfrom .layers import StdConv2dSame, DropPath, to_2tuple, trunc_normal_from .resnet import resnet26d, resnet50dfrom .resnetv2...
一、MLP模块 classMlp(nn.Module):""" MLP as used in Vision Transformer, MLP-Mixer and related networks参数:(1)由于包含两层全连接层,因此需要输入维度:in_features,中间隐藏层维度:hidden_features和最后的输出维度:out_features(2)隐藏层后接的激活函数:act_layer,默认为GELU函数(3)全连接层后跟着一个D...
from timm.dataimportIMAGENET_DEFAULT_MEAN, IMAGENET_DEFAULT_STDfrom .helpersimportload_pretrainedfrom .layersimportStdConv2dSame, DropPath, to_2tuple, trunc_normal_from .resnetimportresnet26d, resnet50dfrom .resnetv2importResNetV2from .registryimportregister_model 2. 定义一个字典,代表标准的模型,...
from timm.dataimportIMAGENET_DEFAULT_MEAN, IMAGENET_DEFAULT_STDfrom .helpersimportload_pretrainedfrom .layersimportStdConv2dSame, DropPath, to_2tuple, trunc_normal_from .resnetimportresnet26d, resnet50dfrom .resnetv2importResNetV2from .registryimportregister_model ...
apply函数的代码是: for module in self.children(): module.apply(fn) fn(self) return self 递归地将fn应用于每个子模块,相当于在递归调用fn,即_init_weights这个函数。也就是把模型的所有子模块的nn.Linear和nn.LayerNorm层都初始化掉。 trunc_normal_(self.pos_embed, std=.02)trunc_normal_(self.cls...
from timm.dataimportIMAGENET_DEFAULT_MEAN, IMAGENET_DEFAULT_STDfrom .helpersimportload_pretrainedfrom .layersimportStdConv2dSame, DropPath, to_2tuple, trunc_normal_from .resnetimportresnet26d, resnet50dfrom .resnetv2importResNetV2from .registryimportregister_model ...
from timm.dataimportIMAGENET_DEFAULT_MEAN, IMAGENET_DEFAULT_STDfrom .helpersimportload_pretrainedfrom .layersimportStdConv2dSame, DropPath, to_2tuple, trunc_normal_from .resnetimportresnet26d, resnet50dfrom .resnetv2importResNetV2from .registryimportregister_model ...