1. Pattern Recognition and Machine Learning;Bishop,2006
2. Black, A.W., Lenzo, K., 2005. Flite: a small, fast speech synthesis engine. .
3. Bonet, B., 2002. An e-optimal grid-based algorithm for partially observable Markov decision processes. In: Proceedings of the 19th International Conference on Machine Learning(ICML 2002), Sydney, Australia.
4. Brafman, R.I., 1997. A heuristic variable grid solution method for POMDPs. In: AAAI, Cambridge, MA.
5. A tractable hybrid DDN-POMDP approach to affective dialogue modeling for probabilistic frame-based dialogue systems;Bui;Natural Language Engineering,2008