Neural Network
A computing system inspired by biological brains, made of layers of interconnected nodes that learn from data.
AI-generated
A neural network is a mathematical model composed of layers of nodes (neurons) connected by weighted edges. Data flows through the network, transformed at each layer, until it produces an output. The weights are adjusted during training so the network learns to produce correct outputs for given inputs.
Neural networks are the foundation of modern AI. Every LLM, image generator, and AI tool is built on neural networks. You do not need to understand the math to use AI tools effectively, but knowing that the underlying technology is a statistical pattern-matching system (not a thinking being) helps you set appropriate expectations.
3Blue1Brown: "Neural Networks" series - https://www.youtube.com/playlist?list=PLZHQObOWTQDNU6R1_67000Dx_ZCJB-3pi
Wikipedia: Artificial neural network - https://en.wikipedia.org/wiki/Artificial_neural_network