Character Level Embedding

[KazutoshiShinoda]

https://github.com/jojonki/BiDAF/blob/3e5ac9c76d02de2d8f75b1eda6632f8a9432eba6/layers/char_embedding.py#L28

I feel strange to see this code. Why do you sum over word_len dimension? Why don't you apply 1D filter over word_len dimension?

Thank you.