الباحثون

Yihang Chen

المنشورات 6

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Feedforward Novel View Synthesis for Heterogeneous Cameras

Meng Wei, Cheng Zhang, Boying Li وآخرون · 2026

Feed-forward novel view synthesis has recently shown promising results from sparse posed images, but most existing methods assume that context and target views share a fixed camera family. This homogeneous-camera assumption breaks in practical multi-sensor systems, where perspective, fisheye, and panoramic cameras may …

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CRAFT: Causal Responsibility and Failure Tracing in Medical Vision Language Models

Chunzheng Zhu, Jiaqi Zeng, Hongbo Zhao وآخرون · 2026

As vision language models are increasingly deployed in clinical diagnosis, under standing how they internally resolve competing visual and textual signals becomes a safety imperative. Existing mechanistic analyses remain confined to unimodal text and offer no explanation for why a single misleading sentence can overrid …

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SafeCoEvo: Co-Evolving Safety Harnesses and Guards for LLM Agents at Test-Time

Yu Cheng, Yongkang Hu, Shuaijie Ma وآخرون · 2026

LLM agents deployed in real-world environments continually encounter new tasks and safety risks, while execution feedback typically becomes available only after each task is completed. However, existing self-evolving approaches commonly rely on multiple rounds of optimization over fixed and repeatedly accessible task d …

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TMCS: Tool-Grounded Multi-Agent Reasoning for Compositional Chemical Problem Solving

Shengqin Wang, Jie Jin, Yu Cheng وآخرون · 2026

Despite the promise of Large Language Models (LLMs) in computational chemistry, rigorous combinatorial chemistry problems remain difficult because they require quantitatively constrained molecular modification, candidate validation, and systematic revision after failed attempts. Existing tool-augmented chemical agents …

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ReSPO: Reshaped Sequence Policy Optimization for Gradient Starvation in Off-Policy Learning

Reinforcement learning from verifiable rewards (RLVR) frequently reuses rollouts across multiple policy updates, increasing the mismatch between the current policy and the data-generating policy. We identify a sign-dependent gradient starvation problem in clipped policy optimization: clipping suppresses under-generated …

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FeCoSplat: Feedback-Guided Compression for Feed-Forward 3D Gaussian Splatting

Yuxuan Li, Yihang Chen, Yufeng Zhang وآخرون · 2026

Feed-forward 3D Gaussian Splatting (3DGS) enables efficient novel-view synthesis from sparse multi-view images, yet its representations remain costly to store and transmit. Existing approaches compress either the input images, incurring heavy receiver-side reconstruction, or the reconstructed Gaussian primitives, which …

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