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Yu-Xin Wang

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#computer vision Preprint Sep 2026

VehicleArena: A Realistic Urban Environment for Multi-Agent Driving

Real-world embodied agents often pursue independent objectives within a shared physical environment, where their actions can alter the conditions faced by others. Existing benchmarks, however, typically assume shared goals or explicitly prescribed interaction protocols, leaving such emergent physical coupling underexpl...

Jie Yang, Jia-Jun Chen, Jia-Zheng Zhou et al. · 0 citations
#machine learning Preprint Sep 2026

MARCO: Multi-Round Agentic Reinforcement for Conditional Molecular Optimization

Molecular optimization is inherently iterative: a candidate is proposed, evaluated against several objectives, and revised while preserving a relationship to the source molecule. Most instruction-following models instead emit one edited molecule, forcing validity, property improvement, and similarity control into a sin...

Shi-Cheng Fang, Yu-Xin Wang, Zhuo Yang et al. · 0 citations
#machine learning Preprint Sep 2026

ORPG: Reconciling Multiple Reward Objectives through Objective-wise Policy Gradients

Objective-wise Reconciled Policy Gradient (ORPG), which constructs a separate clipped policy objective for each reward and reconciles the resulting gradients into one policy update, achieves the highest average full-budget accuracy and three-budget hypervolume among the compared methods.

Shi-Cheng Fang, Yi-Wen Zhao, Wen-Bo Tian et al. · 0 citations
#machine learning Preprint Sep 2026

Analytic-Walk Rotary Positional Encodings for Graphs

Rotary position encodings make attention sensitive to relative position, but extending them to graphs requires choosing how graph structure enters the rotation. Previous works assign each node a rotation from spectral coordinates, so the rotary factor between two nodes depends only on their endpoints and cannot disting...

Jia-Qing Xie, Yu-Xin Wang, Xi-Peng Qiu · 0 citations
Jul 2026

ABOPD: Antibody CDR Design via On-Policy Distillation

ABOPD is introduced, an antibody design framework based on on-policy distillation that leverages privileged native geometry during training to supervise states visited along the model's own denoising trajectories, offering a path to higher-fidelity protein design.

Zhuo Yang, Jiaying He, Jiaqing Xie et al. · 0 citations
Preprint Aug 2026

SWE-bench Science: Can Coding Agents Resolve Engineering Tasks in Science?

A paired ablation that removes explicit scientific guidance while preserving the repository and executable engineering context shows that scientific knowledge is not uniformly beneficial: well-grounded information can constrain repair and improve average performance and token efficiency, whereas poorly aligned guidance...

Zhi-Peng Xu, Jia-Hao Lu, Yi-Ning Zheng et al. · 4 citations
Jul 2026

AgentHPOBench: A Benchmark For Evaluating LLM Agents as Sequential Hyperparameter Optimizers

AgentHPOBench, a sequential benchmark comprising 30 executable machine learning tasks across seven research categories, shows that current agents exhibit measurable experimental optimization ability across domains, but still face clear limitations in sustained iterative refinement, complex log diagnosis, and consistent...

Tianyu Huai, Tingshuo Fan, Xinchi Chen et al. · 0 citations
Preprint Jul 2026

Rethinking Scientific Discovery in the Agentic Era

Applications in materials analysis, molecule design, and protein or antibody screening, together with experiments on scientific reading, idea generation, molecule generation, and antibody screening, show that SCION outperforms existing autonomous research-agent baselines, especially in decomposition, verification, refi...

Y. Zheng, Yuxin Wang, Jiahao Lu et al. · 0 citations

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