After graduating from high school in Osnabrück from 1989 to 1995, Hammer studied mathematics and computer science at the University of Osnabrück . In 1999 she received her doctoral thesis on “Learning with Recurrent Neural Networks” at the University of Osnabrück. In 1999 Hammer was a guest researcher at Rutgers University . From 1999 to 2004 she headed a junior research group funded by the Lower Saxony Ministry of Science and Culture in the project “Using neural methods to learn from structured data” in Osnabrück. In 2000, she was a guest researcher at the Center for Artificial Intelligence & Robotics (CAIR) in Bangaloreactive. In 2001 she worked as a guest researcher at the University of Pisa . In 2004 she accepted the call for a C 4 professorship at Clausthal University of Technology . In 2005 she taught as a visiting professor at the Université Paris 1 Panthéon-Sorbonne . In 2008 she worked as a guest researcher at the University of Groningen . In 2010 she was appointed to a professorship at the University of Bielefeld, where she has since the Chair of Machine Learning at the Technical Faculty conducts.
Her research interests include artificial neural networks , data mining , bioinformatics , learning theory and machine learning.