Data curation selects, cleans, organizes, and quality-checks data so models learn from informative, low-noise examples. For deep learning, better data often improves generalization more reliably than changing the model. section 5.1.2
Prioritize data that makes the learning problem easier to interpolate:
- Increase coverage of the input space, especially near decision boundaries. section 5.1.2
- Preserve informative features and remove overly noisy or inaccurate data. section 5.1.2
Randomly shuffled MNIST labels
An MNIST classifier is trained after randomly shuffling the training labels. The runnable experiment keeps the images but destroys the input–label relationship, illustrating why model capacity cannot compensate for poor curation.

