Under the joint heading Perspectives on Humanities-Centered AI (CHAI 2025) and Formal & Cognitive Reasoning (FCR-2025), the two workshops CHAI and FCR were organised together for the first time. The joint event brought into dialogue two complementary perspectives on artificial intelligence (AI). On the one hand, CHAI explored how AI, as the science of agents acting in the world, can support research in the Humanities by enhancing efficiency and effectiveness. With a Humanities-centred approach, AI methods can be tailored to the specific challenges of interpreting cultural traditions, working with written artefacts, and applying techniques such as text mining and linguistic analysis in ways that optimize human–machine interaction. On the other hand, FCR addressed issues of reasoning under uncertainty and change, emphasizing the need for non-classical systems to capture both real-life Large Language Model (LLM)-based applications and the characteristics of human reasoning. Topics included incomplete knowledge, inconsistent beliefs, and diverse reasoning mechanisms such as analogical and defeasible reasoning, as well as their integration with machine learning approaches. This volume contains the accepted contributions and corresponding presentations from the joint workshop.

Part I - 5th Workshop on Humanities-Centred AI (CHAI 2025)

Magnus Bender Aarhus University, Denmark Welcome

Thomas Reiser1, Jens Dörpinghaus1,2,3, Petra Steiner2, Michael Tiemann1,2 1University of Koblenz, Germany; 2Federal Institute for Vocational Education and Training (BIBB), Germany; 3Linnaeus University, Sweden Linking Vocational archive Data using an Occupations and Educations centric Ontology (download presentation)

Thomas Asselborn1, Magnus Bender2, Ralf Möller1, Sylvia Melzer1 1University of Hamburg, Germany; 2Aarhus University, Denmark Publishing a Chatbot: Opportunities and Challenges (download presentation)

Nadiia Duiunova1, Mariia Halchynska1, Johannes Römisch1,  Hannes Kahl2, Holger Essler3, Frank Deinzer1 1Technical University of Applied Sciences Wuerzburg-Schweinfurt, Germany; 2University Trier, Germany, 3Julius Maximilian University of Würzburg, Germany  Label the Invisible: AI-Aided Label Enhancement and Ink Residue Exposure (download presentation)

Part II - 11th Workshop on Formal and Cognitive Reasoning (FCR 2025)

Jan Speller1, Malte Luttermann2, Marcel Gehrke3, Tanya Braun1 1University of Münster, Germany; 2DFKI Lübeck, Germany; 3University of Hamburg Towards Explainability of Approximate Lifted Model Construction: A Geometric Perspective (download presentation)

Moritz Bayerkuhnlein, Julian Britz, Diedrich Wolter University of Lübeck, Germany Beyond LLM-Guided Common-Sense Reasoning for Natural Language Understanding (download presentation)

Thomas Sievers, Nele Russwinkel University of Lübeck, Germany Personalized Interactions With a Social Robot Based on Recollections From a Cognitive Model (download presentation)

Mohammad Khodaygani, Aliyu Tanko Ali, Timon Dohnke, Tobias Groth, Edgar Baake, Martin Leucker, Nele Russwinkel University of Lübeck, Germany Cognitive Modeling of Agents: Integrating Emotions, Goals, Needs, and Decision-Making (download presentation)

Kai Sauerwald FernUniversität in Hagen, Germany Farewell

This workshop was partially funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany´s Excellence Strategy – EXC 2176 'Understanding Written Artefacts: Material, Interaction and Transmission in Manuscript Cultures', project no. 390893796. The research was mainly conducted within the scope of the Centre for the Study of Manuscript Cultures (CSMC) at University of Hamburg.

This workshop was partially funded by the Danish National Research Foundation (DNRF193) through TEXT: Centre for Contemporary Cultures of Text at Aarhus University.