@inProceedings{chen2015learning,
  author    = {Chen, Y.-N. and Wang, W. Y. and Rudnicky, A. I.}
  title	    = {Learning semantic hierarchy with distributional representations for unsupervised spoken language understanding},
  booktitle = {Proceedings of 16th Annual Conference of the International Speech Communication Association (INTERSPEECH)},
  pages	    = {1869--1873},
  year	    = {2015},
  address   = {Dresden, Germany},
  publisher = {ISCA},
  url	    = {http://www.cs.cmu.edu/~yvchen/doc/IS15_Hierarchy.pdf}
}