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Xian Wu

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Open access Sep 2026

RAGCell: Retrieval-Augmented Generation as Supervision for Versatile Single-cell Analysis.

MOTIVATION Single-cell foundation models (scFMs) are transforming computational biology by enabling generalizable, task-agnostic representations for versatile single-cell analysis. Despite their progress in facilitating rapid deployment for downstream tasks, off-the-shelf scFMs still have some overlooked concerns: (I)...

Tian-Yu Liu, Fan Zhang, Jia-Yuan Chen et al. · 0 citations
#artificial intelligence Preprint Sep 2026

ReLMem: Learning Recurrent Memory for Longitudinal EHR Modeling

Recurrent Longitudinal Memory (ReLMem), a framework that learns to maintain fixed-capacity patient memory for efficient downstream prediction with a frozen LLM, is introduced and a multi-granularity optimization strategy to preserve task-relevant information throughout recurrent updates and support downstream predictio...

Zi-Jie Meng, Xi-Wei Dai, Ying-Ying Zhang et al. · 0 citations
Conference Open access 2026

Beyond Surface Features: Advancing Medical Vision-Language Alignment via Dynamic Evidence-Guided Preference Optimization

Dynamic Evidence-Guided Preference Optimization (DEPO) is proposed, a new framework that enables evidence-aware and adaptive preference learning for Med-LVLMs and introduces Multi-Modal Evidence Perturbation (MEP) to suppress non-causal textual and visual shortcuts and Dispre-ferred Evidence Resampling (DER) to continu...

Zixuan Huang, Zhihong Zhu, Xiaolong Liu et al. · 0 citations
#artificial intelligence Preprint Aug 2026

MedUAG: Unified Understanding and Generation for Medical Multimodal Models

This work develops MedUAG, an end-to-end trained unified medical model that achieves strong performance across a wide array of understanding and generation tasks, establishing a competitive baseline and paving the way for next-generation medical multimodal systems.

Zi-Jie Meng, Yun-Chen Zhang, Hualiang Wang et al. · 0 citations

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