Date: 2023
Type: Contribution to book
Argumentation structure prediction in CJEU decisions on fiscal state aid
ICAIL '23 : proceedings of the Nineteenth International Conference on Artificial Intelligence and Law, New York : Association for Computing Machinery, 2023, pp. 247-256
SANTIN, Piera, GRUNDLER, Giulia, GALASSI, Andrea, GALLI, Federico, LAGIOIA, Francesca, PALMIERI, Elena, RUGGERI, Federico, SARTOR, Giovanni, TORRONI, Paolo, Argumentation structure prediction in CJEU decisions on fiscal state aid, in ICAIL '23 : proceedings of the Nineteenth International Conference on Artificial Intelligence and Law, New York : Association for Computing Machinery, 2023, pp. 247-256
- https://hdl.handle.net/1814/76337
Retrieved from Cadmus, EUI Research Repository
Argument structure prediction aims to identify the relations between arguments or between parts of arguments. It is a crucial task in legal argument mining, where it could help identifying motivations behind judgments or even fallacies or inconsistencies. It is also a very challenging task, which is relatively underdeveloped compared to other argument mining tasks, owing to a number of reasons including a low availability of datasets and a high complexity of the reasoning involved. In this work, we address argumentative link prediction in decisions by Court of Justice of the European Union on fiscal state aid. We study how propositions are combined in higher-level structures and how the relations between propositions can be predicted by NLP models. To this end, we present a novel annotation scheme and use it to extend a dataset from literature with an additional annotation layer. We use our new dataset to run an empirical study, where we compare two architectures and explore different combinations of hyperparameters and training regimes. Our results indicate that an ensemble of residual networks yields the best results.
Additional information:
Published: 07 September 2023
Cadmus permanent link: https://hdl.handle.net/1814/76337
Full-text via DOI: 10.1145/3594536.3595174
ISBN: 9798400701979
Publisher: Association for Computing Machinery
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