overtraining

https://doi.org/10.1351/goldbook.11479
Training a machine learning model for so long that the original input data is memorized with the result that model predictivity is degraded.
Source:
PAC, 2016, 88, 239. (Glossary of terms used in computational drug design, part II (IUPAC Recommendations 2015)) on page 251 [Terms] [Paper]