@article{xpcaextendingpcaforacombinationof,
  title = {XPCA: Extending PCA for a Combination of Discrete and Continuous Variables},
  author = {Clifford Anderson-Bergman and Tamara G. Kolda and Kina Kincher-Winoto},
  year = {2018},
  eprint = {1808.07510},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1808.07510v1},
}