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arXiv · 2305.01211

MultiLegalSBD: A Multilingual Legal Sentence Boundary Detection Dataset

Tobias Brugger·Matthias Stürmer·Joel Niklaus
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Abstract

Sentence Boundary Detection (SBD) is one of the foundational building blocks of Natural Language Processing (NLP), with incorrectly split sentences heavily influencing the output quality of downstream tasks. It is a challenging task for algorithms, especially in the legal domain, considering the complex and different sentence structures used. In this work, we curated a diverse multilingual legal dataset consisting of over 130'000 annotated sentences in 6 languages. Our experimental results indicate that the performance of existing SBD models is subpar on multilingual legal data. We trained and tested monolingual and multilingual models based on CRF, BiLSTM-CRF, and transformers, demonstrating state-of-the-art performance. We also show that our multilingual models outperform all baselines in the zero-shot setting on a Portuguese test set. To encourage further research and development by the community, we have made our dataset, models, and code publicly available.

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BibTeXRIS

Tobias Brugger, Matthias Stürmer, Joel Niklaus. 2023-05-02. MultiLegalSBD: A Multilingual Legal Sentence Boundary Detection Dataset. https://arxiv.org/abs/2305.01211

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