Traffic accident forecasting is an important task for intelligent transportation management and emergency response systems.
Existing data-driven methods mostly focus on studying homogeneous areas with limited size and fail to handle the heterogeneous accident patterns over space at different scales.
This paper proposes a novel Learning-Integrated Space Partition Framework (LISA) that simultaneously learns partitions while training models, guided by prediction accuracy.
Experimental results using real-world datasets show that LISA captures underlying heterogeneous patterns and improves baseline networks by an average of 13.0%.