regularization

https://doi.org/10.1351/goldbook.11504
Introducing additional information in order to solve an ill-posed problem or to prevent overfitting, usually taking the form of a penalty for complexity of the model.
Source:
PAC, 2016, 88, 239. (Glossary of terms used in computational drug design, part II (IUPAC Recommendations 2015)) on page 255 [Terms] [Paper]