A graph-theoretic summary evaluation for ROUGE

Publisher:
The Association for Computational Linguistics
Publication Type:
Conference Proceeding
Citation:
Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing, EMNLP 2018, 2018, pp. 762-767
Issue Date:
2018
Full metadata record
ROUGE is one of the first and most widely used evaluation metrics for text summarization. However, its assessment merely relies on surface similarities between peer and model summaries. Consequently, ROUGE is unable to fairly evaluate summaries including lexical variations and paraphrasing. We propose a graph-based approach adopted into ROUGE to evaluate summaries based on both lexical and semantic similarities. Experiment results over TAC AESOP datasets show that exploiting the lexico-semantic similarity of the words used in summaries would significantly help ROUGE correlate better with human judgments.
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