Re17:读论文 Challenges for Information Extraction from Dialogue in Criminal Law

简介: Re17:读论文 Challenges for Information Extraction from Dialogue in Criminal Law

本文是2021年ACL论文,任务是从听证会记录文本中抽取事实信息factual information(11个手动挑选出的特征),分别测试了无监督方法、弱监督方法和使用预训练模型的方法在这一任务上的效果。

数据集是自制数据,是free-form dialogue of California parole hearings,一部分数据被标注了11个特征。


本文使用的算法为:


  1. an unsupervised data programming paradigm extended to weak supervision:无监督 Snorkel,有监督 WSLF(逻辑回归)
  2. pretrained question answering models based on DistilBERT and Longformer:QA1-2
  3. classification models based on BERT each fine-tuned to predict a single task:Task-FT

image.png


F1值在计算时,Date和numerical经过了分箱。


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