Yesterday I met Robi Palovicz at ACM Recsys. Robi is a PhD from The Hungarian Academy of Sciences, supervised by my friend and Colleague Andras Benczur. Robi was leading the team who won 2nd place at the Recsys challenge 2014.
His solution was based on Graphlab Create, and more interesting, it takes only 30 seconds to compute the winning solution with GraphLab Create!
Robi have promised to share their winning solution using an Ipython Notebook. Once it is ready we will publish it on our website and I will post a note here.