@inproceedings{semisupervisedregressionusinghessian,
  title = {Semi-supervised Regression using Hessian energy with an application to semi-supervised dimensionality reduction},
  author = {Kwang I. Kim and Florian Steinke and Matthias Hein},
  year = {2009},
  booktitle = {NeurIPS 2009 12},
  url = {http://papers.nips.cc/paper/3741-semi-supervised-regression-using-hessian-energy-with-an-application-to-semi-supervised-dimensionality-reduction},
}