Walk-Forward Validation for Time Series foundational

Why model evaluation must preserve temporal order, and how expanding or rolling splits approximate live deployment.

Why model evaluation must preserve temporal order, and how expanding or rolling splits approximate live deployment.

Register to Read

Sign up for a free account to access all 112 primer topics.

Create Free Account

Already have an account? Sign in

References

Advances in Financial Machine Learning
Marcos Lopez de Prado (2018) — John Wiley & Sons
Deep Learning for Financial Time Series: A Large-Scale Benchmark of Risk-Adjusted Performance
Adir Saly-Kaufmann, Kieran Wood, Jan Peter-Calliess, Stefan Zohren (2026)
Statistical Overfitting and Backtest Performance
David H. Bailey, Stephanie Ger, Marcos Lopez de Prado, Alexander Sim, Kesheng Wu (2014)
Enhanced Backtesting for Practitioners
Jacques Joubert, Dragan Sestovic, Illya Barziy, Walter Distaso, Marcos López de Prado (2024) — The Journal of Portfolio Management