SEP 10, 2026 · PREPRINT
A Dataset and Model for Imputing Water Surface Elevation on a Large and Extremely Sparse Spatiotemporal Graph
arXiv
A novel dataset and proof-of-concept model for a real-world problem, but without clinical validation, peer review, or comparison to established operational methods beyond one published baseline.
Reported
Temporal coverage2016–2026 (10 years)
Daily observation sparsity< 1% of sections observed per day
RMSE reduction versus baseline18–39%