1. Abernethy, J., Bartlett, P. L., & Rakhlin, A. (2007). Multitask learning with expert advice. In Proceedings of the 20th annual conference on learning theory (pp. 484–498). Berlin: Springer.
2. Abernethy, J., Bach, F., Evgeniou, T., & Vert, J.-P. (2009). A new approach to collaborative filtering: Operator estimation with spectral regularization. Journal of Machine Learning Research, 10, 803–826.
3. Alvarez, M., Luengo, D., & Lawrence, N. (2009). Latent force models. In Proceedings of the twelfth international conference on artificial intelligence and statistics (Vol. 5, pp. 9–16).
4. Argyriou, A., Evgeniou, T., & Pontil, M. (2008a). Convex multi-task feature learning. Machine Learning, 73, 243–272.
5. Argyriou, A., Maurer, A., & Pontil, M. (2008b). An algorithm for transfer learning in a heterogeneous environment. In The European conference on machine learning and principles and practice of knowledge discovery in databases (ECML PKDD) (pp. 71–85).