OPTED: レンダリング不要な教師によるEnd-to-End自動運転のオンポリシー微調整
OPTED: On-Policy Fine-Tuning for End-to-End Driving using a Render-Free Teacher
強化学習で訓練した特権教師がベクトル入力から生徒モデルを閉ループで指導することで、シミュレータ操作を大幅に削減しつつEnd-to-End自動運転ポリシーを微調整する手法を提案。
詳しい要約
1. どんなもの?
2. 先行研究と比べてどこがすごい?
3. 技術・手法の肝は?
4. どうやって有効だと検証した?
5. 議論はある?
6. 次に読むべき論文は?
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著者: Damiano Da Col, Maximilian Igl, Peter Karkus, Kashyap Chitta, Boris Ivanovic, Marco Pavone, Konrad Schindler, Christos Sakaridis
分類: cs.RO, cs.CV, cs.LG
原文アブストラクト
As scaling pre-training data alone yields diminishing returns, post-training is becoming increasingly important across physical AI domains such as autonomous driving. End-to-end driving policies are pre-trained in open loop with behavior cloning on human demonstrations. However, compounding errors during closed-loop deployment can take the vehicle outside the training data distribution, increasing the risk of safety-critical incidents. Closed-loop post-training can mitigate this risk but requires costly simulation for sensor-based policies. We propose OPTED (on-policy fine-tuning for end-to-end driving) which decouples reinforcement learning from the post-training of the end-to-end policy: a privileged teacher is trained using RL on vectorized inputs (HD-map and bounding boxes). This teacher then provides supervision to the pre-trained student during closed-loop post-training. We apply OPTED to two camera-based models, TransFuser and VaVAM, and fine-tune them in AlpaSim, using neural reconstructions (3DGS) of real driving logs. Driving scores increase by factors of 1.6$\times$ and 9.5$\times$, respectively. In controlled experiments OPTED matches closed-loop performance with approximately three orders of magnitude fewer simulator interactions than direct RL post-training, while staying closer to the human prior. Project page: https://01dami23.github.io/opted/
関連論文
- GMF-Drive: 空間認識BEV表現とゲート付きMamba融合によるエンドツーエンド自動運転自動運転/End-to-End
- GEMINUS:エンドツーエンド自動運転のためのデュアル認識型グローバル・シーン適応型Mixture-of-Experts自動運転/End-to-End