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Yifan Peng

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#machine learning Preprint Sep 2026

Explainable Suicide Risk Assessment on Social Media with Multi-Task QLoRA

Explainable suicide-risk assessment requires models not only to estimate risk severity, but also to identify supporting language and the risk and protective factors expressed in a post. We present our system for the IEEE BigData 2026 Cup on Explainable Suicide Risk Assessment on Social Media, which addresses three task...

Xuan-Zhong Feng, Geoffrey Martin, He-Xin Dong et al. · 0 citations
Preprint Aug 2026

A Source-Grounded Framework for Constructing and Evaluating Progressive Multimodal Diagnostic Dialogues from Clinical Case Reports

This work presents a source-grounded framework to construct progressive multimodal diagnostic dialogues from case reports and an evaluation strategy for assessing MLLMs on final diagnosis, diagnostic reasoning, and image-finding interpretation and demonstrates that fluent responses do not necessarily reflect evidence-g...

Yu-Fan Wang, Rui Yang, Yi Liu et al. · 0 citations
Preprint Jul 2026

Evaluating Multi-Turn Multimodal Diagnostic Reasoning on Challenging Real-World Clinical Cases

Clinical diagnostic evaluation should not only assess whether models can provide correct diagnoses, but also reflect the realities of clinical practice, including progressive disclosure of multimodal information, dynamic updating of diagnostic hypotheses, and continuous refinement of clinical reasoning. However, existi...

Rui Yang, Weihao Xuan, Yi Lin et al. · 0 citations

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