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Ziyuan Zhong

5 accepted papers

2025

Trajectory-LLM: A Language-based Data Generator for Trajectory Prediction in Autonomous Driving

ICLR 2025poster

Vehicle trajectory prediction is a crucial aspect of autonomous driving, which requires extensive trajectory data to train prediction models to understand the complex, varied, and unpredictable patterns of vehicular interactions. However, acquiring real-world data is expensive, so we advocate using…

2023

Guided Conditional Diffusion for Controllable Traffic Simulation

ICRA 2023poster

Controllable and realistic traffic simulation is critical for developing and verifying autonomous vehicles. Typical heuristic-based traffic models offer flexible control to make vehicles follow specific trajectories and traffic rules. On the other hand, data-driven approaches generate realistic and…

Cited by 167SourcecodeScholar
2023

Language-Guided Traffic Simulation via Scene-Level Diffusion

CoRL 2023oral

Realistic and controllable traffic simulation is a core capability that is necessary to accelerate autonomous vehicle (AV) development. However, current approaches for controlling learning-based traffic models require significant domain expertise and are difficult for practitioners to use. To remedy…

Cited by 94SourceScholar
2019

Metric Learning for Adversarial Robustness

NeurIPS 2019poster

Deep networks are well-known to be fragile to adversarial attacks. We conduct an empirical analysis of deep representations under the state-of-the-art attack method called PGD, and find that the attack causes the internal representation to shift closer to the ``false'' class. Motivated by this obser…