CONF Gosztolya_ICASSP_2015/IDIAP Building context-dependent DNN acoustic models using Kullback-Leibler divergence-based state tying Gosztolya, Gábor Grósz, Tamás Tóth, László Imseng, David EXTERNAL https://publications.idiap.ch/attachments/papers/2015/Gosztolya_ICASSP_2015.pdf PUBLIC Proceedings IEEE International Conference on Acoustics, Speech and Signal Processing 2015