Study of Question Answering on Legal Software Document using BERT based models

Ernesto Quevedo Caballero, Mushfika Rahman, T. Cerný, Pablo Rivas, G. Bejarano
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引用次数: 2

Abstract

The transformer-based architectures have achieved remarkable success in several Natural Language Processing tasks, such as the Question Answering domain. Our research focuses on different transformer-based language models’ performance in software development legal domain specialized datasets for the Question Answering task. It compares the performance with the general-purpose Question Answering task. We have experimented with the PolicyQA dataset and conformed to documents regarding users’ data handling policies, which fall into the software legal domain. We used as base encoders BERT, ALBERT, RoBERTa, DistilBERT and LEGAL-BERT and compare their performance on the Question answering benchmark dataset SQuAD V2.0 and PolicyQA. Our results indicate that the performance of these models as contextual embeddings encoders in the PolicyQA dataset is significantly lower than in the SQuAD V2.0. Furthermore, we showed that surprisingly general domain BERT-based models like ALBERT and BERT obtain better performance than a more domain-specific trained model like LEGAL-BERT.
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基于BERT模型的法律软件文档问答研究
基于转换器的体系结构在一些自然语言处理任务中取得了显著的成功,例如问答领域。我们的研究重点是不同的基于转换的语言模型在软件开发法律领域的问答任务专用数据集中的性能。它将性能与通用问答任务进行比较。我们对PolicyQA数据集进行了实验,并遵循了有关用户数据处理策略的文档,这些文档属于软件法律领域。我们使用BERT、ALBERT、RoBERTa、DistilBERT和LEGAL-BERT作为基本编码器,并比较它们在问答基准数据集SQuAD V2.0和PolicyQA上的性能。我们的结果表明,这些模型在PolicyQA数据集中作为上下文嵌入编码器的性能明显低于SQuAD V2.0。此外,我们惊人地表明,一般基于BERT的领域模型,如ALBERT和BERT,比更特定于领域的训练模型,如LEGAL-BERT,获得了更好的性能。
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