Deep Learning (DL)

In short

A subfield of Machine Learning that uses complex architectures to learn patterns that simpler ML techniques couldn’t handle — at the cost of needing much more Data.

If Machine Learning is learning to recognize dogs from a few key features (has fur, four legs, tail), Deep Learning is learning to recognize specific breeds from thousands of subtle details you couldn’t even list.

Deep Learning came up as a method through which models could learn more complex patterns and behaviors that were otherwise hard to represent with simple Machine Learning techniques. The trade-off is that it requires significantly more data for training. This is the foundation that eventually led to LLMs and the current AI revolution.