1. Ridge regression: biased estimation for nonorthogonal problems;Hoerl;Technometrics,1970
2. Solution of incorrectly formulated problems and the regularization method;Tihonov;Soviet Math. Dokl.,1963
3. C. Saunders, A. Gammerman, V. Vovk, Ridge regression learning algorithm in dual variables, in: Proceedings of the 15th International Conference on Machine Learning, 1998, pp. 515–521.
4. Y. Lu, P.S. Dhillon, D.P. Foster, L.H. Ungar, Faster ridge regression via the subsampled randomized hadamard transform, in: Proceedings of the 26th Annual Conference on Advances in Neural Information Processing Systems, Vol. 26, 2013, pp. 369–377.
5. S. Chen, Y. Liu, M.R. Lyu, I. King, S. Zhang, Fast Relative-Error Approximation Algorithm for Ridge Regression, in: Proceedings of the 31st Conference on Uncertainty in Artificial Intelligence, 2015, pp. 201–210.