SEP 10, 2026 · PREPRINT
Predicting Train Delays in Finland Using Machine Learning and Weather Data
arXiv
A single-centre machine learning model evaluation on observational data with no clinical outcome, comparator arm, or external validation; demonstrates technical feasibility but requires independent testing before operational deployment.
Reported
R² (category-based model)0.78
Root mean squared error8.5 minutes
Mean absolute error3.7 minutes