ASSET: A dataset for tuning and evaluation of sentence simplification models with multiple rewriting transformations

Alva Manchego, Fernando, Martin, Louis, Bordes, Antoine, Scarton, Carolina, Sagot, Benoît and Specia, Lucia 2020. ASSET: A dataset for tuning and evaluation of sentence simplification models with multiple rewriting transformations. Presented at: ACL 2020: 58th Annual Meeting of the Association for Computational Linguistics, Published in: Jurafsky, Dan, Chai, Joyce, Schluter, Natalie and Tetreault, Joel eds. Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics. ACL, pp. 4688-4679. 10.18653/v1/2020.acl-main.424

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Abstract

In order to simplify a sentence, human editors perform multiple rewriting transformations: they split it into several shorter sentences, paraphrase words (i.e. replacing complex words or phrases by simpler synonyms), reorder components, and/or delete information deemed unnecessary. Despite these varied range of possible text alterations, current models for automatic sentence simplification are evaluated using datasets that are focused on a single transformation, such as lexical paraphrasing or splitting. This makes it impossible to understand the ability of simplification models in more realistic settings. To alleviate this limitation, this paper introduces ASSET, a new dataset for assessing sentence simplification in English. ASSET is a crowdsourced multi-reference corpus where each simplification was produced by executing several rewriting transformations. Through quantitative and qualitative experiments, we show that simplifications in ASSET are better at capturing characteristics of simplicity when compared to other standard evaluation datasets for the task. Furthermore, we motivate the need for developing better methods for automatic evaluation using ASSET, since we show that current popular metrics may not be suitable when multiple simplification transformations are performed.

Item Type:	Conference or Workshop Item (Paper)
Status:	Published
Schools:	Computer Science & Informatics
Publisher:	ACL
Last Modified:	04 Apr 2022 11:15
URI:	https://orca.cardiff.ac.uk/id/eprint/147261

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