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M. Rizoiu

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Open access Sep 2026

Popping misinformation bubbles: persona-informed style-based messaging in Facebook ad experiments

Misinformation is often viewed as an information problem, attributed to people’s poor understanding of consensus-based facts. While this is a contributing factor, we propose that misinformation and conspiracy are also communicated differently to their audiences. Can we better reach these audiences by matching the style...

JooYoung Lee, Emily Booth, Hany Farid et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Misinformation Without Triggers: From Factual Answers to Downstream Decisions

Language models learn from web documents, some of them false, and false content can reach a model's answer to a factual question and the summaries and decisions that use it. Most data-poisoning studies add a trigger to the training data and activate it in the prompt. False documents can also change factual responses wi...

Lin Tian, M. Rizoiu · 0 citations
Review Jul 2026

UTS at CheckThat! 2026: Cite-Frame Engineering for Generated Fact-Checking Articles

CheckThat! 2026 Task 3 asks systems to generate fact-checking articles, graded by an unweighted mean of four sub-metrics (M4). Our UTS submission placed 2nd of 11 teams (M4 = 0.484). The shipped system is a deterministic stub drafter wrapped by two single-lever interventions: a domain-attribution cite frame (HostCite)...

Dima Galat, M. Rizoiu · 0 citations
#natural language process... Preprint Sep 2026

Less Is Moral: A CHARMing Framework for Moral Foundations Detection in Endorsement Behaviour

Moral language plays a central role in shaping online endorsement and the diffusion of information, yet existing moral foundation detection systems often suffer from poor cross-domain generalization, weak rationale grounding, and reliance on costly prompting-based large language models (LLMs). We introduce CHARM, a MAC...

Hui-Xiang Fu, M. Rizoiu · 0 citations

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