1. Herbrich, R., Graepel, T., Obermayer, K.: Large margin rank boundaries for ordinal regression. In: Advances in Large Margin Classifiers, MIT Press, Cambridge (2000)
2. Shashua, A., Levin, A.: Ranking with large margin principle: Two approaches. In: Neural Information Processing Systems (2003)
3. Chu, W., Keerthi, S.S.: New approaches to support vector ordinal regression. In: International Conference on Machine Learning (2005)
4. Hu, Y., Li, M., Yu, N.: Multiple-instance ranking: Learning to rank images for image retrieval. In: Computer Vision and Pattern Recognition (2008)
5. Jing, Y., Baluja, S.: Pagerank for product image search. In: Proceeding of the 17th International Conference on World Wide Web (2008)