@inproceedings{SongGGM2010, title = {Nonparametric Tree Graphical Models}, author = {Song, L. and Gretton, A. and Guestrin, C.}, booktitle = {Proceedings of the 13th International Conference on Artificial Intelligence and Statistics, Volume 9 }, pages = {765--772}, editors = {YW Teh and M Titterington }, publisher = {JMLR}, year = {2010}, doi = {} }