Mapping phonemes to the corresponding graphemes

[MahirEusufzai]

Is it feasible to show which phonemes represent which segment of each word?

For example, instead of the output being

tensorflow
T EH N S AO R F L OW

it would be

tensorflow
t - T
e - EH
n - N
s - S
o - AO
r - R
f - F
l - L
ow - OW

[nshmyrev]

There is no exact mapping in seq2seq, but there are attention weights which are shifting from start to end, by learning the weights you can see what phoneme was derived from which chunk of the input string. One has to modify the seq2seq code to retrieve them though, see for details:

https://stackoverflow.com/questions/40601552/visualizing-attention-activation-in-tensorflow

[nshmyrev]

See also tensorflow/tensorflow#1668