Error, or loss
A number that measures how wrong a model’s answers are.
Learn it through a story
- Fog on Nandi Hills (Jugnupur Tales Vol 2, Ch 2)
Short on time? Read the 5-minute version.
Related terms
- Clustering Putting similar things into groups.
- Confidence How sure a model says it is about an answer.
- Confidence score How sure an AI is about its answer.
- Feature A clue the AI looks at, like colour or shape.
- Generalising Doing well on new examples, not just old ones.
- Gradient descent Improving a model by stepping each weight a little downhill on the error, again and again.