Fast redshift clustering with the Baire (ultra) metric

@article{Murtagh2011FastRC,
  title={Fast redshift clustering with the Baire (ultra) metric},
  author={Fionn Murtagh and Pedro Contreras},
  journal={ArXiv},
  year={2011},
  volume={abs/1104.4063}
}
  • Fionn Murtagh, Pedro Contreras
  • Published 2011
  • Computer Science, Physics, Mathematics
  • ArXiv
  • The Baire metric induces an ultrametric on a dataset and is of linear computational complexity, contrasted with the standard quadratic time agglomerative hierarchical clustering algorithm. We apply the Baire distance to spectrometric and photometric redshifts from the Sloan Digital Sky Survey using, in this work, about half a million astronomical objects. We want to know how well the (more cos\ tly to determine) spectrometric redshifts can predict the (more easily obtained) photometric… CONTINUE READING

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