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import torch | |
import torchvision | |
def create_effnet_b2_model(num_classes=101): | |
""" | |
Args: num_classes is total number of classes | |
returns: model and its corresponding model_specific transform | |
""" | |
weights = torchvision.models.EfficientNet_B2_Weights.DEFAULT | |
transform = torchvision.models.EfficientNet_B2_Weights.DEFAULT.transforms() | |
model = torchvision.models.efficientnet_b2(weights=weights) | |
# freeze the parameters from training | |
for param in model.parameters(): | |
param.requires_grad = False | |
# modifying the classifier layer | |
model.classifier = torch.nn.Sequential( | |
torch.nn.Dropout(p=0.3,inplace=True), | |
torch.nn.Linear(in_features=1408,out_features=num_classes) | |
) | |
return model,transform | |