ctc decoder with language model

[edchengg]

Hi,
Thanks for your work!
I implemented a LM with your py-arpa-lm.. The output of lm.score_tg returns a ln scale score.

I just would like to check if the following is correct way to add LM:

# *NB* this would be a good place to include an LM score. insertion penalty lm_score = alpha * lm.score_tg(n_prefix) ins_p = beta * np.log(len(n_prefix)) next_beam[n_prefix] = (n_p_b + lm_score + ins_p, n_p_nb + lm_score + ins_p)

Thanks!