We implement the model from [Entity, Relation, and Event Extraction with Contextualized Span Representations](https://arxiv.org/abs/1909.03546). This model suports end-to-end event extraction. The code is adapted from the original [codebase](https://github.com/dwadden/dygiepp).

```bib
@inproceedings{Wadden19dygiepp,
  author       = {David Wadden and
                  Ulme Wennberg and
                  Yi Luan and
                  Hannaneh Hajishirzi},
  title        = {Entity, Relation, and Event Extraction with Contextualized Span Representations},
  booktitle    = {Proceedings of the 2019 Conference on Empirical Methods in Natural
                  Language Processing and the 9th International Joint Conference on
                  Natural Language Processing (EMNLP-IJCNLP)},
  year         = {2019},
}
```
