KDD CUP 2011 reflection

I just learned from my collaborator JustinYan from the chinese national academy of science,about the paper A Linear Ensemble of Individual and Blended Models for Music Rating Prediction" was published by the Taiwanese team from the National Taiwan University, which won KDD CUP 2011 both tracks one and two.

What is specially interesting about this paper IMHO, is that GraphLab matrix factorization library was used for computing two models out of their ensemble.

That raises the number of teams who utilized GraphLab and won high places to two in this contest.