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Jianfeng Gao

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#natural language process... Preprint Sep 2026

Register Tokens for Bounded-State Reasoning in Diffusion Language Models

Masked diffusion language models (dLLMs) generate text by iteratively denoising masked tokens with bidirectional attention. Extending reasoning across generation chunks normally requires keeping earlier generated text in context. We ask whether a dLLM can instead continue reasoning after that text is cleared, using onl...

Albert Ge, C. Singh, Yu-Fan Zhuang et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Reinforcement Learning over Patient Trajectories for Clinical Reasoning in EHR Foundation Models

Electronic health record (EHR) foundation models trained on longitudinal patient trajectories have demonstrated strong performance across diverse clinical prediction tasks. However, their clinical reasoning capabilities remain constrained by next-token prediction on limited and incomplete EHR data. To address this, we...

Yu-Xin Xiao, Sheng Zhang, C. Singh et al. · 0 citations
Preprint Jul 2026

Data-Efficient Adaptation of LLMs via Attention Head Reweighting

Experiments on diverse open-source text classification datasets show that AHR can outperform standard baselines like LoRA when learning from limited samples, despite having 200-1000x fewer trainable parameters, as the authors' AHR only modifies ~0.0001% of the model's parameters.

Tuomas P. Oikarinen, Zixiao Chen, Charlotte Siska et al. · 0 citations

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