[공지사항]을 빙자한 안부와 근황 
Show more

Daily Arxiv

This is a page that curates AI-related papers published worldwide.
All content here is summarized using Google Gemini and operated on a non-profit basis.
Copyright for each paper belongs to the authors and their institutions; please make sure to credit the source when sharing.

Seeking to Collide: Online Safety-Critical Scenario Generation for Autonomous Driving with Retrieval Augmented Large Language Models

Created by
  • Haebom

Author

Yuewen Mei, Tong Nie, Jian Sun, Ye Tian

Outline

This paper presents an online, search-augmented large-scale language model (LLM) framework to overcome the limitations of existing scenario generation methods in simulation-based testing, which is essential for autonomous vehicle (AV) verification. Using an LLM-based behavior analyzer, we infer the most dangerous intents of background vehicles and generate feasible adversarial trajectories via additional LLM agents. As new intents are encountered, we automatically extend the behavior library of intent-planner pairs via dynamic memory and search storage to mitigate forgetting and accelerate adaptation. Evaluation results using the Waymo Open Motion Dataset demonstrate that it outperforms existing methods, reducing the average minimum collision time from 1.62 s to 1.08 s and reducing the collision rate by 75%.

Takeaways, Limitations

Takeaways:
Presenting an effective scenario generation method for safety verification of autonomous vehicles
Effectively detect rare and safety-critical exceptions using online learning and dynamic memory utilization
Experimentally verified improved collision avoidance performance over existing methods
Limitations:
Since it is LLM-based, it may be affected by the inherent limitations of LLM (e.g. hallucinations, biases)
Generalization performance to other datasets requires further validation due to dependence on the Waymo Open Motion Dataset.
There is a possibility that it may not perfectly reflect the complexity of the actual road environment.
👍