STAD: Self-Training with Ambiguous Data for Low-Resource Relation Extraction
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Abstract (arXiv)
We present a simple yet effective self-training approach, named as STAD, for low-resource relation extraction. The approach first classifies the auto-annotated instances into two groups: confident instances and uncertain instances, according to the probabilities predicted by a teacher model. In contrast to most previous studies, which mainly only use the confident instances for self-training, we make use of the uncertain instances. To this end, we propose a method to identify ambiguous but useful instances from the uncertain instances and then divide the relations into candidate-label set and negative-label set for each ambiguous instance. Next, we propose a set-negative training method on the negative-label sets for the ambiguous instances and a positive training method for the confident instances. Finally, a joint-training method is proposed to build the final relation extraction system on all data. Experimental results on two widely used datasets SemEval2010 Task-8 and Re-TACRED with low-resource settings demonstrate that this new self-training approach indeed achieves significant and consistent improvements when comparing to several competitive self-training systems. Code is publicly available at https://github.com/jjyunlp/STAD
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References · 18
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- 2019Self-training with Noisy Student improves ImageNet classificationcited by 1,304
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- 2020Self-training Improves Pre-training for Natural Language Understandingcited by 96
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- 2019Partial Label Learning with Self-Guided Retrainingcited by 47
- 2020Semi-supervised Relation Extraction via Incremental Meta Self-Trainingcited by 35
- 2021Gradient Imitation Reinforcement Learning for Low Resource Relation Extractioncited by 33
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- 2016Improved Relation Classification by Deep Recurrent Neural Networks with Data Augmentationcited by 26
- 2019Deep Contextualized Self-training for Low Resource Dependency Parsingcited by 24
- 2020Data Rejuvenation: Exploiting Inactive Training Examples for Neural Machine Translationcited by 17
- 2021Self-Training Sampling with Monolingual Data Uncertainty for Neural Machine Translationcited by 17
- 2021MapRE: An Effective Semantic Mapping Approach for Low-resource Relation Extractioncited by 16
- 2022Information Extraction in Low-Resource Scenarios: Survey and Perspectivecited by 10
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