@article{recursivenearestagglomerationrenafast,
  title = {Recursive nearest agglomeration (ReNA): fast clustering for approximation of structured signals},
  author = {Andrés Hoyos-Idrobo and Gaël Varoquaux and Jonas Kahn and Bertrand Thirion},
  year = {2016},
  eprint = {1609.04608},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1609.04608v2},
}