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AlexNet (2012)

AlexNet's Architecture

  • AlexNet has the same concept as the LeNet5, but there are a lot of extra convs.
  • They used ReLU for the activation function and uses MaxPooling for downsampling
  • Here we are working with images of 224x224 which is much high compared to 32x32 of the LeNet5.
  • Dropout layer and Data Augmentation to avoid overfitting
  • Local Response Normalization (similar to Batch Normalization, today) to speed up the training time
  • Weight Regularization (L2) to avoid overfitting