@Techreport{Ravikumar_2006_10118,
  author = {Ravikumar, P. / Lafferty, J. D.},
 institution = {Carnegie Mellon University},
 title = {Quadratic programming relaxations for metric labeling and markov random field MAP estimation},
 year = {2006},
 title_with_no_special_chars = {Quadratic Programming Relaxations for Metric Labeling and Markov Random Field MAP Estimation}
}