Kaggle is a platform for data prediction competitions. Companies, organizations and researchers post their data and have it scrutinized by the world's best statisticians.
Platform for sharing and evaluation of intelligent algorithms. Data mining data, experiments, datasets, performance analysis, data repository, challenges. Research and applications, prediction. Data mining and machine learning
A. Hogan, E. Mu\ noz, and J. Umbrich. Proceedings of the Billion Triple Challenge 2012 (co-located with ISWC 2012, Boston, US), November 13, Boston, US, (November 2012)