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Author

Liyue Shen

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Jul 2026

TIER-MoE: Trust-Informed Expert Routing via Conditional Modality Risk for Multimodal Fusion in Biomedical Classification

TIER-MoE is introduced, a risk-guided subspace mixture-of-experts model that defines sample-specific modality reliability as the prediction loss its unimodal predictor is expected to incur, and demonstrates its superiority over state-of-the-art methods in predictive performance and probability calibration.

Yu Chang, Anzhe Cheng, Chenwei Wu et al. · 0 citations
#machine learning Preprint Aug 2026

MedCache: Efficient and Temporally Valid Memory for Longitudinal Clinical Agents

A benchmark of multi-visit, multi-specialty patient records is introduced that evaluates long-context evidence retrieval, cross-time evidence aggregation, and cross-specialty clinical reasoning and proposes MedCache, a hybrid framework that constructs temporally valid patient memory and organizes evidence into overlapp...

Hei-Ting Chan, Chenwei Wu, Xue-Shen Liu et al. · 1 citation
Preprint Jul 2026

Evaluating and Understanding Model Editing for Medical Vision Language Models

A rigorous clinical stress test for multimodal model editing that evaluates whether an edit remains reliable, precise, and generalizable under the challenges of image and text variation, modality and protocol shifts, clinical knowledge composition, and temporal progression is introduced.

Guli Zhu, Chenwei Wu, Liyue Shen · 0 citations

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