Held-out set
Data kept aside, like a sealed exam paper.
Learn it through a story
- The Topper Who Only Memorised (Jugnupur Tales Vol 2, Ch 3)
Short on time? Read the 5-minute version.
Related terms
- 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.
- Input A number that goes into a neuron, like how clear the sky is.
- Label The right answer given with an example.
- Layer A group of neurons working side by side, passing answers to the next group.