yc1999 / LEAR

The implementation our EMNLP 2021 paper "Enhanced Language Representation with Label Knowledge for Span Extraction".

LEAR

The implementation our EMNLP 2021 paper "Enhanced Language Representation with Label Knowledge for Span Extraction".

See below for an overview of the model architecture:

Requestments

• python 3.6
• pytorch 1.8
• transformers 3.9.2
• prefetch_generator
• tokenizers

Data

Note: The thunlp has updated the repo HMEAE recently, which causing the mismatch of data. Make sure you use the earlier version for ED task.

Task	Url	Rreprocess scripts
NER	mrc-for-flat-nested-ner	-
Event Detection	ACE 2005	HMEAE

Train

The detail hyper-parameter setting is listed in our paper.

• For NER task, run run_ner.py.
• For Event Detection task, run run_trigger_extraction.py

Evaluation

• Nested: set exist_nested=True.
• Flat: set span_decode_strategy=v5.