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KG-ASG: Collision-Knowledge-Guided Closed-Loop Adversarial Scenario Generation With Primary-Support Attribution

Summary

KG-ASG constructs a structured collision knowledge base and trains a lightweight Collision Expert to infer collision modes and interaction roles, formulating multi-vehicle adversarial generation as a primary-support process. Experiments on WOMD scenarios in MetaDrive show improved adversarial effectiveness, interpretability, and executability for autonomous driving safety validation.

SourcearXiv RoboticsAuthor: Cheng Wang, Chen Xiong, Ziwen Wang, Yuchen Zhou, Qiang Liu
KG-ASG: Collision-Knowledge-Guided Closed-Loop Adversarial Scenario Generation With Primary-Support Attribution
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[2605.18895] KG-ASG: Collision-Knowledge-Guided Closed-Loop Adversarial Scenario Generation With Primary-Support Attribution

[Submitted on 17 May 2026]

Title:KG-ASG: Collision-Knowledge-Guided Closed-Loop Adversarial Scenario Generation With Primary-Support Attribution

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Abstract:Safety validation of autonomous driving systems requires high-risk scenario coverage, clear collision semantics, executable trajectories, and attributable multi-vehicle interactions. Existing safety-critical scenario generation methods often rely on low-level trajectory perturbations, collision-proxy optimization, or single-adversary search, which may produce adversarial samples with ambiguous collision causes or uncontrolled multi-vehicle collisions. This paper proposes KG-ASG, a collision-knowledge-guided closed-loop adversarial scenario generation framework with primary-support attribution. KG-ASG constructs a structured collision knowledge base and trains a lightweight Collision Expert to infer the target collision mode, the unique primary adversary, support vehicles, and their interaction roles. Guided by this semantic prior, multi-vehicle adversarial generation is formulated as a primary-support process, where the primary adversary induces the main conflict and support vehicles shape the surrounding risk structure without becoming additional colliders. Rule, physical, interaction-safety, and single-collider constraints are imposed as hard gates to filter non-executable samples. To handle reactive ego behaviors, planner-controller feedback is further used for failure diagnosis, candidate re-ranking, and terminal refinement. Experiments on WOMD scenarios reconstructed in MetaDrive show that KG-ASG achieves strong adversarial effectiveness while improving Valid Primary Attack, reducing multi-collision, and obtaining closed-loop recovery gains under IDM, Cruise, and Expert controllers. These results demonstrate that collision-knowledge guidance and primary-support single-collider reasoning improve adversarial effectiveness, interpretability, and executability for autonomous driving safety validation.

Subjects:

Robotics (cs.RO); Artificial Intelligence (cs.AI)

Cite as: arXiv:2605.18895 [cs.RO]

(or arXiv:2605.18895v1 [cs.RO] for this version)

https://doi.org/10.48550/arXiv.2605.18895

arXiv-issued DOI via DataCite (pending registration)

Submission history

From: Xiong Chen [view email] [v1] Sun, 17 May 2026 09:04:48 UTC (4,039 KB)

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Key points and analysis

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Key points

  • KG-ASG introduces a collision-knowledge-guided framework with primary-support attribution for adversarial scenario generation.
  • A structured knowledge base and Collision Expert enable semantic prior inference of collision modes and vehicle roles.
  • Hard constraints and planner-controller feedback ensure executability and closed-loop recovery.
  • Experiments demonstrate improved Valid Primary Attack and reduced multi-collisions under multiple controllers.

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