A Family of Additive Online Algorithms for Category Ranking
Yoram Singer and Koby Crammer

@article{3:40,author={Koby Crammer and Yoram Singer}, Title={A Family of Additive Online Algorithms for Category Ranking},journal={Journal of Machine Learning Research},volume={3}, url={http://www.jmlr.org/papers/volume3/blei03a/blei03a.pdf}}