Rendle, Steffen ; Marinho, Leandro Balby ; Nanopoulos, Alexandros ; Schmidt-Thieme, Lars: Learning optimal ranking with tensor factorization for tag recommendation. In: KDD '09: Proceedings of the 15th ACM SIGKDD international conference on Knowledge discovery and data mining. New York, NY, USA : ACM, 2009. - ISBN 978-1-60558-495-9, S. 727--736