GUMsley: Evaluating Entity Salience in Summarization for 12 English Genres

Jessica Lin, Amir Zeldes


Abstract
As NLP models become increasingly capable of understanding documents in terms of coherent entities rather than strings, obtaining the most salient entities for each document is not only an important end task in itself but also vital for Information Retrieval (IR) and other downstream applications such as controllable summarization. In this paper, we present and evaluate GUMsley, the first entity salience dataset covering all named and non-named salient entities for 12 genres of English text, aligned with entity types, Wikification links and full coreference resolution annotations. We promote a strict definition of salience using human summaries and demonstrate high inter-annotator agreement for salience based on whether a source entity is mentioned in the summary. Our evaluation shows poor performance by pre-trained SOTA summarization models and zero-shot LLM prompting in capturing salient entities in generated summaries. We also show that predicting or providing salient entities to several model architectures enhances performance and helps derive higher-quality summaries by alleviating the entity hallucination problem in existing abstractive summarization.
Anthology ID:
2024.eacl-long.158
Volume:
Proceedings of the 18th Conference of the European Chapter of the Association for Computational Linguistics (Volume 1: Long Papers)
Month:
March
Year:
2024
Address:
St. Julian’s, Malta
Editors:
Yvette Graham, Matthew Purver
Venue:
EACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
2575–2588
Language:
URL:
https://aclanthology.org/2024.eacl-long.158
DOI:
Bibkey:
Cite (ACL):
Jessica Lin and Amir Zeldes. 2024. GUMsley: Evaluating Entity Salience in Summarization for 12 English Genres. In Proceedings of the 18th Conference of the European Chapter of the Association for Computational Linguistics (Volume 1: Long Papers), pages 2575–2588, St. Julian’s, Malta. Association for Computational Linguistics.
Cite (Informal):
GUMsley: Evaluating Entity Salience in Summarization for 12 English Genres (Lin & Zeldes, EACL 2024)
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PDF:
https://aclanthology.org/2024.eacl-long.158.pdf