What is Deep Learning?

When Demis Hassabis opened his lecture at the 2015 CERN Data Science conference with this claim, I blinked in disbelief. Hundreds of brilliant scientists have spent their lives pondering the mysteries of the human eye. How could he make that claim so casually? Determined to prove him wrong, I looked at the latest computer vision research and… indeed, certain areas are at human performance.

Source: What is Deep Learning?