How do recommender systems work on digital platforms?

20 January 2021, Baden-Wuerttemberg, Tübingen: A researcher works on a code in the AI Research Buildung at the University of Tübingen, which is part of the "Cyber Valley". This is where the "Machine Learning" Cluster of Excellence of the Department of Computer Science of the Faculty of Mathematics and Natural Sciences is located. (to dpa "Artificial intelligence is booming and the southwest is setting the pace") Photo: Sebastian Gollnow/dpa