DEER: A Data Efficient Language Model for Event Temporal Reasoning

• URL: http://arxiv.org/abs/2012.15283v1
• Date: Wed, 30 Dec 2020 18:57:16 GMT
• Title: DEER: A Data Efficient Language Model for Event Temporal Reasoning
• Authors: Rujun Han, Xiang Ren, Nanyun Peng
• Abstract summary: We propose DEER, a language model that is trained to focus on event temporal relations. Our experimental results show that DEER can achieve SOTA results and works particularly well in low-resource settings.
• Score: 44.21992914516526
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Pretrained language models (LMs) such as BERT, RoBERTa, and ELECTRA are effective at improving the performances of a variety of downstream NLP tasks. Recently, researchers have incorporated domain and task-specific knowledge in these LMs' training objectives and further enhanced models' capability of handling downstream tasks. However, none of these LMs are designed specifically for event temporal reasoning. We propose DEER, a language model that is trained to focus on event temporal relations and performs better under low-resource settings than original LMs. More specifically, we create a large number of training samples to simulate the machine reading comprehension and information extraction tasks for event temporal understanding and leverage a generator-discriminator structure to reinforce the LMs' capability of event temporal reasoning. Our experimental results show that DEER can achieve SOTA results and works particularly well in low-resource settings across 5 widely used datasets.

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