Simplicity Level Estimate (SLE): A Learned Reference-Less Metric for Sentence Simplification
Autor: | Cripwell, Liam, Legrand, Joël, Gardent, Claire |
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Rok vydání: | 2023 |
Předmět: | |
Druh dokumentu: | Working Paper |
Popis: | Automatic evaluation for sentence simplification remains a challenging problem. Most popular evaluation metrics require multiple high-quality references -- something not readily available for simplification -- which makes it difficult to test performance on unseen domains. Furthermore, most existing metrics conflate simplicity with correlated attributes such as fluency or meaning preservation. We propose a new learned evaluation metric (SLE) which focuses on simplicity, outperforming almost all existing metrics in terms of correlation with human judgements. Comment: Accepted to EMNLP 2023 (Main Conference) |
Databáze: | arXiv |
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