@InProceedings{chen-et-al:2013icassp,
  author    = {Chen, Yun-Nung and Wang, William Yang and Rudnicky, Alex I.},
  title     = {An Empirical Investigation of Sparse Log-Linear Models for Improved Dialogue Act Classification},
  booktitle = {Proceedings of the 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013)},
  month     = {May},
  year      = {2013},
  address   = {Vancouver, Canada},
  publisher = {IEEE}
}