# Validation loss

> A metric representing a model's loss on the validation set during a particular iteration of training.[^1]

A metric representing a [model](https://wiki.g15e.com/pages/Model%20(machine%20learning.txt))'s [loss](https://wiki.g15e.com/pages/Loss%20(machine%20learning.txt)) on the [validation set](https://wiki.g15e.com/pages/Validation%20set.txt) during a particular [iteration](https://wiki.g15e.com/pages/Iteration%20(machine%20learning.txt)) of training.[^1]

## See also

- [Generalization curve](https://wiki.g15e.com/pages/Generalization%20curve.txt)

## Footnotes

[^1]: https://developers.google.com/machine-learning/glossary#validation-loss