Use allennlp to develop some nlp tasks (for our own projects usage)

Part-of-speech Tagging

1. This part is demo code from allennlp.
2. to explain how this framework works and the main develop process.

Named Entity Recognition

1. Use bi-LSTM(not include CRF).
2. Next step we will port the BERT based model.

Abstractive Summarzaiton

1. based on Copynet.
2. Define CNN/Daily Mail reader for long-term usage.