Within-Document Event Coreference with BERT-Based Contextualized Representations

• URL: http://arxiv.org/abs/2102.09600v2
• Date: Sat, 6 Apr 2024 05:14:07 GMT
• Title: Within-Document Event Coreference with BERT-Based Contextualized Representations
• Authors: Shafiuddin Rehan Ahmed, James H. Martin,
• Abstract summary: Event coreference continues to be a challenging problem in information extraction. Recent advances in contextualized language representations have proven successful in many tasks. We present a three part approach that uses representations derived from a pretrained BERT model to train a neural classifier to create coreference chains.
• Score: 2.3020018305241337
• License: http://creativecommons.org/publicdomain/zero/1.0/
• Abstract: Event coreference continues to be a challenging problem in information extraction. With the absence of any external knowledge bases for events, coreference becomes a clustering task that relies on effective representations of the context in which event mentions appear. Recent advances in contextualized language representations have proven successful in many tasks, however, their use in event linking been limited. Here we present a three part approach that (1) uses representations derived from a pretrained BERT model to (2) train a neural classifier to (3) drive a simple clustering algorithm to create coreference chains. We achieve state of the art results with this model on two standard datasets for within-document event coreference task and establish a new standard on a third newer dataset.

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