Wuwei Lan

Yes, we should maintain a dictionary (or other data structure) to map words/subwords into embeddings. If we encounter new word/subword, we just use 'OOV' to replace it.

Hi, these are two existing problems for PWIM. If you can solve it, you can definitely publish a paper~ My suggestions is that you can consider [soft attention](https://github.com/lanwuwei/SPM_toolkit) in DecAtt...