Data → Machine Learning & AI

Deep Learning

A machine learning approach based on multi-layer neural networks that learn hierarchical representations from data.

Motivation

Deep learning solves the problem of learning representations from large datasets, especially for images, speech, language, and other high-dimensional data.

Where it fits

Deep learning is a branch of machine learning built around neural networks with multiple layers.

Mental model

Earlier layers learn simpler patterns; later layers combine them into more abstract features.

Common mistakes

Starting with deep learning when simpler models would work.
Ignoring overfitting and data leakage.
Forgetting that training and inference have different engineering constraints.