@techreport{Wang:2014hyper,
  title = "Theoretical Analysis of Bayesian Optimisation with Unknown Gaussian Process Hyper-Parameters",
  author = "Ziyu Wang and Nando de Freitas",
  year = "2014",
  institution = "University of Oxford",
  number = "arXiv:1406.7758",
  url = "http://arxiv.org/abs/1406.7758",
}