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import torch | |
import torchvision | |
from torch import nn | |
#Function that creates an effnetb2 | |
def create_effnet_b2(num_classes: int = 3, | |
seed: int = 42): | |
#Get weights | |
weights = torchvision.models.EfficientNet_B2_Weights.DEFAULT | |
transforms = weights.transforms() | |
model = torchvision.models.efficientnet_b2(weights = weights) | |
#Freeze parameters in features layer | |
for param in model.parameters(): | |
param.requires_grad = False | |
#Change classification layer | |
torch.manual_seed(seed) | |
model.classifier = nn.Sequential( | |
nn.Dropout(p = .3), | |
nn.Linear(in_features = 1408, | |
out_features = num_classes)) | |
return model, transforms | |