Other works show that bidirectional long short-term memory (LSTM) neural networks and the encoder-decoder architecture (Sutskever et al., 2014) achieve comparable results with WFST based n-gram models that are considered state-of-theart (Rao et al., 2015;Yao and Zweig, 2015).
these works only studied grapheme-to-phoneme (G2P) conversion from English to standard English pronunciation sets, such as the CMU pronunciation dictionary (Weide, 2014).