Overfitting
A model fitting its training data instead of the pattern behind it.
Aperçu
Overfitting is what happens when a model learns the training set well enough that its performance there stops predicting its performance anywhere else. It solves nothing; it is the default outcome of optimising a flexible model against a finite sample. It exists as the reason regularisation, held-out data and early stopping exist, and it is why a fine-tuning run on a few hundred examples can make a model worse at the task it was already good at.
Graphe des technologies
Comment Overfitting se rattache au reste de la pile.
Appliqué à
- Dropout technique Techniques Dropout solves Overfitting High ✓ source
- Regularization concept Algorithms Regularization solves Overfitting High ✓ source
Classification
- Fine-tuning technique Techniques Overfitting part of Fine-tuning High ✓ source