Negative CTC loss

[paarandika (Ayantha Randika)]

I have faced the same issue and did not get an answer.

CTC Loss Unexpected Behaviour

I have used the following code to test the behaviour of CTC loss. def get_char_maps (vocab): char_to_index={} index_to_char={} cnt=0 for c in vocab: char_to_index[c]=cnt index_to_char[cnt]=c cnt+=1 vocab_size=cnt return (char_to_index, index_to_char, vocab_size) loss_function = CTCLoss() char_to_index, index_to_char, vocab_size = get_char_maps(['~', 'a', 'b', 'c', 'd', 'e', 'f', 'g', ' ']) empty_char = '~' label = 'abc' seq_len = 20 predict = 'a…