Greta Warren

Greta Warren

Postdoc, University of Copenhagen

Greta Warren

About me

I’m a Postdoc in the CopeNLU group at the Department of Computer Science, University of Copenhagen. I am also affiliated with the Pioneer Centre for Artificial Intelligence. Currently, I work with Prof. Isabelle Augenstein and Prof. Irina Shklovski on human-centred and transparent retrieval-augmented generation for LLMs, funded by a DFF Research Grant.

My research in human-AI interaction is interdisciplinary and draws from artificial intelligence, human-computer interaction, and cognitive psychology. In my work, I examine the design and evaluation of explainable AI systems and how they can be designed to support human reasoning in complex decision-making tasks, such as identifying misinformation. My primary research interests are in eXplainable AI (XAI), human-AI interaction, fact-checking and explanatory reasoning.

I completed my PhD in the School of Computer Science and Insight Centre for Data Analytics, University College Dublin, supervised by Prof. Mark Keane and Prof. Ruth Byrne. My doctoral research examined the efficacy of counterfactual explanations in explainable AI, taking a human-centred approach, grounded in cognitive psychology, to explaining AI system decisions.

I hold a B.A. (Hons) in Psychology from Trinity College Dublin, and I worked as a research assistant in Trinity College Institute of Neuroscience prior to beginning my PhD. I also speak Irish (Gaeilge), the native language of Ireland (along with almost 2 million other people!).

Travel and Talks 2026

  • I’m giving an invited talk at the InterSynth Lab Seminar Series on November 26!

  • Visited Montréal in June to attend FAccT’26! 🍁 You can watch a recording of my talk here.

  • Gave a talk on my work on human-centred explainability at the Pioneer Centre for AI in Copenhagen on April 24th! 🏰

News