@article{JMLR:v17:15-625,
  author  = {Justin Bed{\H{o}} and Cheng Soon Ong},
  title   = {Multivariate Spearman's $\rho$ for Aggregating Ranks Using Copulas},
  journal = {Journal of Machine Learning Research},
  year    = {2016},
  volume  = {17},
  number  = {201},
  pages   = {1--30},
  url     = {http://jmlr.org/papers/v17/15-625.html}
}