Angelie Kraft

Researcher NLP, Ethics & Epistemology of AI

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  • About me

    I am an interdisciplinary researcher in the areas of natural language processing (NLP) and AI ethics with a training in computer science and psychology. My research is concerned with the epistemological and ethical dimensions of AI and research processes within the AI community. I am currently leading the research group Digitalization and Opening up Science at the Weizenbaum Institute, Berlin.

    I completed my doctoral studies at the University of Hamburg, supervised by Ricardo Usbeck and Judith Simon. My thesis examined whose knowledges are considered in LLMs and other representations of knowledge influencing the development of LLMs (such as encyclopaedic knowledge graphs), as well as benchmarks used to measure model performance on knowledge-intensive tasks. My thesis combined technical and philosophical analysis and was awarded the highest honors (summa cum laude).

    News

    Last update: February 11, 2026

    • In February, I successfully defended my PhD thesis entitled „On Knowledge in AI: Ethical and Epistemic Limitations of Language Models and Knowledge Graphs“, which was awarded the highest honors (summa cum laude) by the examination board.
    • In January, I gave a lecture on „Ethical Aspects of AI“ in the course DataX at Leuphana University LĂĽneburg. The course is attended by more than 1,000 first-semester Bachelor’s students across all disciplines with goal of fostering data literacy at scale.
    • Career update: In December 2025, I returned to the Weizenbaum Institute and join the group “Digitalization and Opening up Science” as the Research Group Lead. There, I am continuing to research the scientific practices related to the development, evaluation, and use of AI, in particular wrt. epistemic and ethical aspects.