The Right Model for the Job: An Evaluation of Legal Multi-Label Classification Baselines

Fuente: arXiv
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Main Authors: Forster, Martina, Schulz, Claudia, Nokku, Prudhvi, Mirsafian, Melicaalsadat, Kasundra, Jaykumar, Skylaki, Stavroula
Format: Preprint
Published: 2024
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author Forster, Martina
Schulz, Claudia
Nokku, Prudhvi
Mirsafian, Melicaalsadat
Kasundra, Jaykumar
Skylaki, Stavroula
author_facet Forster, Martina
Schulz, Claudia
Nokku, Prudhvi
Mirsafian, Melicaalsadat
Kasundra, Jaykumar
Skylaki, Stavroula
contents Multi-Label Classification (MLC) is a common task in the legal domain, where more than one label may be assigned to a legal document. A wide range of methods can be applied, ranging from traditional ML approaches to the latest Transformer-based architectures. In this work, we perform an evaluation of different MLC methods using two public legal datasets, POSTURE50K and EURLEX57K. By varying the amount of training data and the number of labels, we explore the comparative advantage offered by different approaches in relation to the dataset properties. Our findings highlight DistilRoBERTa and LegalBERT as performing consistently well in legal MLC with reasonable computational demands. T5 also demonstrates comparable performance while offering advantages as a generative model in the presence of changing label sets. Finally, we show that the CrossEncoder exhibits potential for notable macro-F1 score improvements, albeit with increased computational costs.
format Preprint
id arxiv_https___arxiv_org_abs_2401_11852
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The Right Model for the Job: An Evaluation of Legal Multi-Label Classification Baselines
Forster, Martina
Schulz, Claudia
Nokku, Prudhvi
Mirsafian, Melicaalsadat
Kasundra, Jaykumar
Skylaki, Stavroula
Computation and Language
Artificial Intelligence
Multi-Label Classification (MLC) is a common task in the legal domain, where more than one label may be assigned to a legal document. A wide range of methods can be applied, ranging from traditional ML approaches to the latest Transformer-based architectures. In this work, we perform an evaluation of different MLC methods using two public legal datasets, POSTURE50K and EURLEX57K. By varying the amount of training data and the number of labels, we explore the comparative advantage offered by different approaches in relation to the dataset properties. Our findings highlight DistilRoBERTa and LegalBERT as performing consistently well in legal MLC with reasonable computational demands. T5 also demonstrates comparable performance while offering advantages as a generative model in the presence of changing label sets. Finally, we show that the CrossEncoder exhibits potential for notable macro-F1 score improvements, albeit with increased computational costs.
title The Right Model for the Job: An Evaluation of Legal Multi-Label Classification Baselines
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2401.11852