"I am investigating how artificial intelligence (AI) makes decisions. Trees play an important role in this. Their branches serve as the model for a special machine learning technique: decision trees. Here, AI checks step by step whether data have certain properties or not. The more criteria, the more a solution path branches out. With a whole forest of decision trees working in parallel, we want to analyze air quality data and predict, for example, ozone levels for places that have no measuring stations.”

Dr. Scarlet Stadtler, Jülich Supercomputing Centre, research group Earth System Data Exploration