@article{JMLR:v15:hazan14a,
  author  = {Elad Hazan and Satyen Kale},
  title   = {Beyond the Regret Minimization Barrier: Optimal Algorithms for Stochastic Strongly-Convex Optimization},
  journal = {Journal of Machine Learning Research},
  year    = {2014},
  volume  = {15},
  number  = {71},
  pages   = {2489--2512},
  url     = {http://jmlr.org/papers/v15/hazan14a.html}
}