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Liwen Sun

4 accepted papers

2026

Collaborative Disagreement Resolution for Scalable Oversight

ICML 2026poster

*Debate*, where AI agents argue opposing positions, has emerged as a key approach to scalable oversight. However, debate faces a fundamental tension: models are incentivized to be persuasive to the judge, which may not always align with epistemic honesty. In this work, we propose an alternative para…

Cited by 0SourceScholar
2025

Fact-Aware Multimodal Retrieval Augmentation for Accurate Medical Radiology Report Generation

NAACL 2025long

Multimodal foundation models hold significant potential for automating radiology report generation, thereby assisting clinicians in diagnosing cardiac diseases. However, generated reports often suffer from serious factual inaccuracy. In this paper, we introduce a fact-aware multimodal retrieval-augm…

Cited by 14SourcePDFScholar
2024

ED-Copilot: Reduce Emergency Department Wait Time with Language Model Diagnostic Assistance

ICML 2024poster

In the emergency department (ED), patients undergo triage and multiple laboratory tests before diagnosis. This time-consuming process causes ED crowding which impacts patient mortality, medical errors, staff burnout, etc. This work proposes (time) *cost-effective diagnostic assistance* that leverage…

2017

A finite rate of innovation multichannel sampling hardware system for multi-pulse signals

ICASSP 2017accepted

Multi-pulse signals are composed of finite pulse streams of arbitrary pulse shape. With the pulse shape known, a multichannel sampling scheme for multi-pulse signals can operate at the rate of innovation, which is much lower than the Nyquist rate. The sampling system is based on low-pass filters, os…

Cited by 0SourceScholar