Convolutional character-level encoder without explicit segmentation.

[Waino]

Implement an encoder following [1].

[1] Lee, Jason, Kyunghyun Cho, and Thomas Hofmann. "Fully Character-Level Neural Machine Translation without Explicit Segmentation." arXiv preprint arXiv:1610.03017 (2016). https://arxiv.org/pdf/1610.03017