Yamen Ajjour is a postdoctoral researcher at the Institute for Artificial Intelligence of Leibniz University Hannover. His research interests lie in argument technology and computational ethics. His research on argument technology was awarded the Best Paper Award at the German Conference on Artificial Intelligence 2019. Currently, he is investigating how media bias affects prompt-based learning. Yamen co-organized several shared tasks related to computational argumentation and has several publications in this area as well as in framing and question answering. He has been reviewing for major NLP conferences for six years and has been awarded the Outstanding Reviewer Award at EACL 2023.