Author

Zhuo-Fan Chen

h-index 2 View on Semantic Scholar

We have 2 of 10 papers

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

#artificial intelligence Preprint Oct 2026

Mitigating Video Hallucinations via Attention-Guided Representation Perturbation

Video large language models (Video LLMs) often generate responses unsupported by the input video. Contrastive decoding (CD) can mitigate these hallucinations, but its effectiveness depends on how the negative branch weakens visual evidence. Existing methods rely on predefined perturbations or masking guided by question...

Zhi-Xi Cai, Ruo-Qi Yuan, Xin-Cheng Yang et al. · 0 citations

#machine learning Preprint Sep 2026

CircuitLens: Reasoning Circuits as Data Selection Signals for Reinforcement Learning with Verifiable Rewards

CRS is introduced, a selection signal derived from 46 reasoning-sensitive attention heads identified via contrastive ablation, computed in a single forward pass on the frozen base model without reward labels or rollouts, which runs against the intuitive hypothesis that stronger reasoning-circuit engagement produces bet...

Zhuo-Fan Chen, Zi-Qian Jiao, Yi-Kai Cui et al. · 1 citation