video

Welch Labs: The Moment We Stopped Understanding AI [AlexNet]

by Stephen Welch

Stephen Welch takes AlexNet — the 2012 network that set off the deep-learning boom — and shows what a trained vision model actually contains, layer by layer, from edge detectors up to activation atlases of abstract concepts. A beautifully animated 18 minutes on why a system we built ourselves turned out to need reverse-engineering.