Steffen Rendle is a research scientist at Google. Previous to this, he was an assistant professor at the University of Konstanz, Germany. Steffen’s research interest is in large-scale machine learning using factorization models. His research received the best paper award at WWW 2010 and a best student paper award at WSDM 2010. Steffen has applied his research in various machine learning competitions, receiving awards at the ECML Discovery Challenges 2009 & 2013, both tasks in KDDCup 2012 and other contests.