@inproceedings{ICML-2004-SuD,
	author        = "Ting Su and Jennifer G. Dy",
	booktitle     = "{Proceedings of the 21st International Conference on Machine Learning}",
	doi           = "10.1145/1015330.1015393",
	publisher     = "{ACM}",
	series        = "{ACM International Conference Proceeding Series}",
	title         = "{Automated hierarchical mixtures of probabilistic principal component analyzers}",
	volume        = 69,
	year          = 2004,
}