Learn what overfitting is, how it impacts data models, and effective strategies to prevent it, such as cross-validation and simplification.

Ernie Smith is a former contributor to BizTech, an old-school blogger who specializes in side projects, and a tech history nut who researches vintage operating systems for fun. In data analysis, it is ...

Overfitting in ML is when a model learns training data too well, failing on new data. Investors should avoid overfitting as it mirrors risks of betting on past stock performances. Techniques like ...

If that is true, the methods of modern investing will be upended. The debate began in 2021, when Bryan Kelly and Kangying Zhou of Yale University, and Semyon Malamud of the Swiss Federal Institute of ...