正文
Learning Curves 可以分为三种:
- Underfit
- Overfit
- Good Fit
Underfit
A plot of learning curves shows underfitting if:
- The training loss remains flat regardless of training
- The training loss continues to decrease until the end of training
Overfit
A plot of learning curves shows overfitting if:
- The plot of training loss continues to decrease with experience
- The plot of validation loss decreases to a point and begins increasing again
![Overfit](https://img2022.cnblogs.com/blog/1370690/202202/1370690-20220214163843800-96365492.webp)
Good Fit
A plot of learning curves shows a good fit if:
- The plot of training loss decreases to a point of stability
- The plot of validation loss decreases to a point of stability and has a small gap with the training loss
![Overfit](https://img2022.cnblogs.com/blog/1370690/202202/1370690-20220214163856536-510789089.webp)