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arXiv · 2402.14457

Annotation and Classification of Relevant Clauses in Terms-and-Conditions Contracts

Pietro Giovanni Bizzaro·Elena Della Valentina·Maurizio Napolitano·Nadia Mana·Massimo Zancanaro
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Abstract

In this paper, we propose a new annotation scheme to classify different types of clauses in Terms-and-Conditions contracts with the ultimate goal of supporting legal experts to quickly identify and assess problematic issues in this type of legal documents. To this end, we built a small corpus of Terms-and-Conditions contracts and finalized an annotation scheme of 14 categories, eventually reaching an inter-annotator agreement of 0.92. Then, for 11 of them, we experimented with binary classification tasks using few-shot prompting with a multilingual T5 and two fine-tuned versions of two BERT-based LLMs for Italian. Our experiments showed the feasibility of automatic classification of our categories by reaching accuracies ranging from .79 to .95 on validation tasks.

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Pietro Giovanni Bizzaro, Elena Della Valentina, Maurizio Napolitano, Nadia Mana, Massimo Zancanaro. 2024-02-22. Annotation and Classification of Relevant Clauses in Terms-and-Conditions Contracts. https://arxiv.org/abs/2402.14457

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