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Unit 7.3 Convolutional Neural Network Architectures

References

What we covered in this video lecture

Coding convolutional neural networks like AlexNet and VGG16 is relatively simple, thanks to PyTorch’s convenient abstractions. But, on the other hand, developing convolutional neural network architectures that work well is also an art. So, in practice, it’s recommended to build on existing, successful architectures that researchers spent significant time developing. In this lecture, we reviewed the major convolutional network milestones and architectures, including AlexNet, Inception, VGG, and ResNets.

Additional resources if you want to learn more

Among many others, popular convolutional architectures include MobileNet (particularly small) and EfficientNet v2 (small but also state of the art).

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Quiz: 7.3 Convolutional Neural Network Architectures - Part 1

The term “inductive bias” means

Incorrect. That’s not necessarily true for inductive biases.

Incorrect. This would be a different form of bias but not necessarily true for inductive biases.

Incorrect. Although strong inductives biases can sometimes lead to underfitting.

Correct. It can sometimes help with better generalization (e.g., compare a convolutional network to a multilayer perceptron on image data.)

Please answer all questions to proceed.

Quiz: 7.3 Convolutional Neural Network Architectures - Part 2

“Top-5 accuracy” on an image classification datasets means

Incorrect.

Correct.

Incorrect.

Please answer all questions to proceed.

Quiz: 7.3 Convolutional Neural Network Architectures - Part 3

What are the innovations of the Inception architecture?

Correct. Intermediary losses can help with training deep architectures. However, this is nowadays less common (versus using skip connections).

Correct

Incorrect. The inception architecture uses a regular cross entropy loss.

Please answer all questions to proceed.
Watch Video 1

Unit 7.3

Videos