R. Raina, A. Battle, H. Lee, B. Packer, and A. Ng. Proceedings of the 24th international conference on Machine learning, page 759-766. Corvalis, Oregon, ACM, (2007)
R. Raina, A. Battle, H. Lee, B. Packer, and A. Ng. ICML '07: Proceedings of the 24th international conference on Machine learning, page 759--766. New York, NY, USA, ACM, (2007)