[R] I built a "Safety Oracle" for L4 Autonomous Driving using Flow Matching (and why it's better than standard Heuristics).

Hey r/MachineLearning, I just finished a project/paper tackling one of the hardest problems in AV safety: The Long-Tail Problem. Most safety filters rely on simple rules (e.g., "if brake > 5m/s2, then log"). These rules are brittle and miss 99% of "semantic" safety risks (erratic lane changes, non-normative geometry). I wanted to see if we could automate this using Generative AI instead of manual rules. The Approach: I developed "Deep-Flow," a framework that uses Optimal Transport Conditional Flow Matching (OT-CFM) to learn the probability density of expert human behavior.