Manoel Horta Ribeiro

Manoel Horta Ribeiro is an Assistant Professor in the Department of Computer Science at Princeton University, affiliated with the Princeton Center for Information Technology Policy (CITP). He holds a PhD from EPFL, an MSc and BSc from UFMG, and has collaborated with major tech firms including Meta, Reddit, and Microsoft. His research spans computational social science, artificial intelligence, and social computing, with a focus on real-world impact and policy implications.

His research interests include computational social science, artificial intelligence, social computing, generative AI, online platforms, content moderation, algorithmic amplification, and human-AI interaction. He investigates how AI systems shape online discourse, influence user behavior, and affect platform governance, often using large-scale data analysis and experimental methods to derive actionable insights for design and policy.

His recent publications reflect a strong trend in studying the societal impacts of AI, particularly generative models, in online environments. Themes include AI-assisted peer review, deplatforming effects, persuasive capabilities of LLMs, enterprise social media, and the ethics of automation in crowdsourcing. His work bridges technical AI research with social science theory, emphasizing empirical validation and real-world relevance.

• Forbes 30 Under 30 Class of 2023 in Science & Healthcare (Europe)
• ICWSM Best Paper Award
• Facebook Fellowship
• Best Reviewer Award at ICWSM 2022
• Teaching Assistant Award at EPFL
• 3rd Place in SBC Master Thesis Awards
• Google Latin America Research Award
• Top 100 Most Influential Papers in 2019 (3rd in Computer Science)

Manoel actively mentors students and is recruiting PhD candidates at Princeton to work on computational social science and the societal impact of generative AI. He has advised and collaborated on numerous studies involving content moderation, platform migration, and AI behavior. His lab engages in interdisciplinary research, often partnering with industry and policy institutions. He is also active in public discourse through media interviews, invited talks, and his Substack blog, where he critically examines AI trends and their broader implications.