2026: Selected Publications

Supporting Adolescents’ mHealth Needs:
Qualitative and Quantitative Insights From a User Survey of a Mental Health Promoting App
Esra Cemre Su de Groot, Lianne P. de Vries, Ujwal Gadiraju,
Olya Kudina, Loes Keijsers, Manon H.J. Hillegers, Willem-Paul Brinkman
Computers in Human Behavior Reports (2026)

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Centering Knowledge Along the Responsible LLM Supply Chain:
An Empirical Study & Multi-Stakeholder Taxonomy.
Agathe Balayn, Fanny Rancourt, Fabio Casati, Ujwal Gadiraju
In Proceedings of the ACM on Human-Computer Interaction (CSCW 2026)

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AI At the Front Lines of Platform Governance:
Using LLMs to Support Illegal Content Reporting under the Digital Services Act.
Marie-Therese Sekwenz, Shreyan Biswas, Rita Hermann-Gsenger, Ujwal Gadiraju
In Proceedings of the 2026 ACM Conference on Fairness, Accountability, and Transparency (FAccT 2026)

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"Label from Somewhere": Reflexive Annotating for Situated AI Alignment.
Anne Arzberger, Céline Offerman, Ujwal Gadiraju, Alessandro Bozzon, Jie Yang
In Proceedings of the 2026 ACM Conference on Fairness, Accountability, and Transparency (FAccT 2026)

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When Life Gives You AI, Will You Turn It Into A Market for Lemons? Understanding How Information Asymmetries About AI System Capabilities Affect Market Outcomes and Adoption.
Alexander Erlei, Federico Maria Cau, Radoslav Georgiev, Sagar Chethan Kumar, Kilian Bizer, Ujwal Gadiraju
In Proceedings of the ACM International Conference on Human Factors in Computing Systems (CHI 2026)

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Belief Updating and Delegation in Multi-Task Human–AI Interaction:
Evidence from Controlled Simulations.
Shreyan Biswas, Alexander Erlei, Ujwal Gadiraju
In Proceedings of the ACM International Conference on Human Factors in Computing Systems (CHI 2026)

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The Data-Dollars Tradeoff: Privacy Harms vs. Economic Risk in Personalized AI Adoption.
Alexander Erlei, Tahir Abbas, Kilian Bizer, Ujwal Gadiraju
In Proceedings of the ACM International Conference on Human Factors in Computing Systems (CHI 2026)
🏅 Best Paper Honorable Mention Award (top 5% ) 🏅

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Responsible Data Selection Method for Algorithmic Personalization of Health Apps:
A Case Study on Promoting Mental Health.
Esra Cemre Su de Groot, Ujwal Gadiraju, Olya Kudina, Loes Keijsers, Manon HJ Hillegers, Willem-Paul Brinkman.
Frontiers in Digital Health 8 (2025): 1691697.

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From SERPs to Sound: How Search Engine Result Pages and AI-generated Podcasts Interact to Influence User Attitudes on Controversial Topics.
Junjie Wang, Gaole He, Alisa Rieger, Ujwal Gadiraju
In Proceedings of ACM SIGIR Conference on Human Information Interaction and Retrieval (CHIIR 2026).

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2025