AI glossary / How it works
Backpropagation
The way a neural network learns from its mistakes: it works out how wrong it was, then nudges its internal dials to be less wrong next time.
More words in How it works
- Chain of thoughtWhen an AI works through a problem step by step before giving its answer, which usually makes it more accurate.
- ClassificationSorting things into categories, such as spam or not spam. One of the most common jobs AI does.
- Context compactionSummarising the older parts of a long conversation so an AI can keep going without running out of room.
- Data labellingPeople tagging examples, such as marking which photos contain a cat, so an AI can learn from them.
- DatasetA collection of examples, such as text, images or numbers, gathered to teach or test an AI.