@inproceedings {lee2004multimodal,
	title = {A multimodal variational approach to learning and inference in switching state space models [speech processing application]},
	booktitle = {2004 IEEE International Conference on Acoustics, Speech, and Signal Processing},
	volume = {5},
	year = {2004},
	pages = {V{\textendash}505},
	publisher = {IEEE},
	organization = {IEEE},
	author = {Lee, Leo J and Attias, Hagai and Deng, Li and Fieguth, Paul}
}
