الباحثون

Xin Zheng

المنشورات 5

نسخة أولية وصول مفتوح

Beyond In-Distribution Preservation: Recovering Generalization in Quantized VLAs via Vulnerability-Oriented Tuning

Shen Ruan, Wenchang Gao, Jin Wang وآخرون · 2026

Post-training quantization has been shown to preserve VLA performance under standard evaluation conditions, but whether it preserves the full-precision model's robustness and generalization remains underexplored. In this study, we systematically study the robustness and generalization of post-quantized VLA policies und …

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Interpretable Hypergraph Learning via Neural Additive Models

Shihan Feng, Xin Zheng, Shiyi Yang وآخرون · 2026

Hypergraphs offer a natural framework for modeling networked data, where dependencies among entities are governed by higher-order interactions. While hypergraph learning methods such as hypergraph neural networks have demonstrated remarkable predictive performance, most existing approaches rely on black-box message-pas …

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Frame Differential On-Policy Self-Distillation for Video Reasoning

Haiying He, Xin Zheng, Shaoli Hu وآخرون · 2026

Reinforcement learning (RL) has substantially improved the reasoning ability of multimodal language models through verifiable rewards and increasingly fine-grainedvisual or temporal credit assignment. In video reasoning, however, current RL methods typically train with a fixed sparse frame budget: increasing the number …

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