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arXiv · 2310.08170

Simplicity Level Estimate (SLE): A Learned Reference-Less Metric for Sentence Simplification

Liam Cripwell·Joël Legrand·Claire Gardent
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Abstract

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.

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Liam Cripwell, Joël Legrand, Claire Gardent. 2023-10-12. Simplicity Level Estimate (SLE): A Learned Reference-Less Metric for Sentence Simplification. https://arxiv.org/abs/2310.08170

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