Authors

Lin Chen

Publications 2

Preprint Open access

PulseBound: Future-Beat State Forecasting Under an Explicit Information Boundary

Chenyang Xu, Donglin Xie, Xi Xiang et al. · 2026

Predictive representation learning from photoplethysmography (PPG) can violate causal information access even with causal attention, as normalization, nonlocal transforms, or companion views may depend on withheld samples. We introduce PulseBound, a PPG representation learner combining physiologically structured future …

Preprint Open access

How Far Are We from Removing the Visual Encoder? Scaling Laws for Encoder-Free Multimodal Pretraining

Lin Chen, Bolin Ni, Qi Yang et al. · 2026

Most modern multimodal large language models (MLLMs) build on a pretrained visual encoder that provides a strong visual prior. Encoder-free MLLMs instead learn visual representations directly from raw pixels, offering a simple and unified architecture, but their scaling behavior has not been systematically characterize …

Co-authors

Chenyang Xu Donglin Xie Xi Xiang Xiaoyu Li Yufan Lu Jiqiun Gao Yi Zhao Xin-Yi Li Guangpu Zhu Zijian Wang Xiwen Yang Dezhen Wang