Clara Egger
2021
A Multilingual Approach to Identify and Classify Exceptional Measures against COVID-19
Georgios Tziafas
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Eugenie de Saint-Phalle
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Wietse de Vries
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Clara Egger
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Tommaso Caselli
Proceedings of the Natural Legal Language Processing Workshop 2021
The COVID-19 pandemic has witnessed the implementations of exceptional measures by governments across the world to counteract its impact. This work presents the initial results of an on-going project, EXCEPTIUS, aiming to automatically identify, classify and com- pare exceptional measures against COVID-19 across 32 countries in Europe. To this goal, we created a corpus of legal documents with sentence-level annotations of eight different classes of exceptional measures that are im- plemented across these countries. We evalu- ated multiple multi-label classifiers on a manu- ally annotated corpus at sentence level. The XLM-RoBERTa model achieves highest per- formance on this multilingual multi-label clas- sification task, with a macro-average F1 score of 59.8%.