polyphone's classification

[HeYingnan]

hi, i find for anyone polyphone the netwok's output is a id, and then you can get pinyin from idx2class, i want to know how can you
ensure the output id is one of the classifications? thank you.

[seanie12]

We map every pinyin to unique number (id) and save its inverse map (Id -> pinyin) into the dictionary, which is idx2class.

So we can convert the network's output into unique pinyin.