[1] T. Hastie, R. Tibshirani and J. Friedman, The Elements of
Statistical Learning, Springer, 2001.
[2] B. Scholkopf and A. Smola, Learning with Kernels, MIT Press,
2002.
[3] E. Candes and B. Recht, Exact matrix completion via convex
optimization, Foundations of Computational Mathematics 9(6) (2009),
717-772.
[4] R. Rockafellar, Convex Analysis, Princeton University Press, 1970.