Jian Xue, L. Che, Yunxin Zhao. Semi-tied covariance matrices for acoustic models based on random forests of phonetic decision trees. In Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2009, 19-24 April 2009, Taipei, Taiwan. pages 4469-4472, IEEE, 2009. [doi]
Abstract is missing.