Beyond the Crowd: LLM-Augmented Community Notes for Governing Health Misinformation

Abstract

An empirical analysis of 30.8K health-related Community Notes on X finds a median delay of 17.6 hours before a note receives a helpfulness status. The paper proposes CrowdNotes+, an LLM-based framework that combines evidence-grounded note augmentation with utility-guided note automation, assessed through a hierarchical evaluation of relevance, correctness, and helpfulness on HealthNotes, a benchmark of 1.2K annotated health notes.

Publication
Proceedings of the 64th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
Jiaying Wu
Jiaying Wu
Research Fellow (Jul ‘24)

Postdoctoral Research Fellow at WING & NUS CTIC

Zihang Fu
Zihang Fu
Research Assistant (Aug ‘25)

Research Assistant

Fanxiao Li
Fanxiao Li
CSC Visiting Student (Sep ‘25)

Visiting student; interests include Multimodal Misinformation, Large Vision-Language Models.

Min-Yen Kan
Min-Yen Kan
Associate Professor

WING lead; interests include Digital Libraries, Information Retrieval and Natural Language Processing.