Entity, relation, and event extraction with contextualized span representations

D Wadden, U Wennberg, Y Luan… - arxiv preprint arxiv …, 2019 - arxiv.org
We examine the capabilities of a unified, multi-task framework for three information
extraction tasks: named entity recognition, relation extraction, and event extraction. Our …

Event extraction as machine reading comprehension

J Liu, Y Chen, K Liu, W Bi, X Liu - Proceedings of the 2020 …, 2020 - aclanthology.org
Event extraction (EE) is a crucial information extraction task that aims to extract event
information in texts. Previous methods for EE typically model it as a classification task, which …

Text2Event: Controllable sequence-to-structure generation for end-to-end event extraction

Y Lu, H Lin, J Xu, X Han, J Tang, A Li, L Sun… - arxiv preprint arxiv …, 2021 - arxiv.org
Event extraction is challenging due to the complex structure of event records and the
semantic gap between text and event. Traditional methods usually extract event records by …

[PDF][PDF] Event extraction via dynamic multi-pooling convolutional neural networks

Y Chen, L Xu, K Liu, D Zeng, J Zhao - Proceedings of the 53rd …, 2015 - aclanthology.org
Traditional approaches to the task of ACE event extraction primarily rely on elaborately
designed features and complicated natural language processing (NLP) tools. These …

Event extraction by answering (almost) natural questions

X Du, C Cardie - arxiv preprint arxiv:2004.13625, 2020 - arxiv.org
The problem of event extraction requires detecting the event trigger and extracting its
corresponding arguments. Existing work in event argument extraction typically relies heavily …

[CITATION][C] Introduction to natural language processing

J Eisenstein - 2019 - books.google.com
A survey of computational methods for understanding, generating, and manipulating human
language, which offers a synthesis of classical representations and algorithms with …

[PDF][PDF] Joint event extraction via recurrent neural networks

TH Nguyen, K Cho, R Grishman - … of the 2016 conference of the …, 2016 - aclanthology.org
Event extraction is a particularly challenging problem in information extraction. The stateof-
the-art models for this problem have either applied convolutional neural networks in a …

Exploring pre-trained language models for event extraction and generation

S Yang, D Feng, L Qiao, Z Kan, D Li - Proceedings of the 57th …, 2019 - aclanthology.org
Traditional approaches to the task of ACE event extraction usually depend on manually
annotated data, which is often laborious to create and limited in size. Therefore, in addition …

Jointly multiple events extraction via attention-based graph information aggregation

X Liu, Z Luo, H Huang - arxiv preprint arxiv:1809.09078, 2018 - arxiv.org
Event extraction is of practical utility in natural language processing. In the real world, it is a
common phenomenon that multiple events existing in the same sentence, where extracting …

DEGREE: A data-efficient generation-based event extraction model

I Hsu, KH Huang, E Boschee, S Miller… - arxiv preprint arxiv …, 2021 - arxiv.org
Event extraction requires high-quality expert human annotations, which are usually
expensive. Therefore, learning a data-efficient event extraction model that can be trained …