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GeSERA: General-domain Summary Evaluation by Relevance Analysis

Abstract : We present GeSERA, an open-source improved version of SERA for evaluating automatic extractive and abstractive summaries from the general domain. SERA is based on a search engine that compares candidate and reference summaries (called queries) against an information retrieval document base (called index). SERA was originally designed for the biomedical domain only, where it showed a better correlation with manual methods than the widely used lexical-based ROUGE method. In this paper, we take out SERA from the biomedical domain to the general one by adapting its content-based method to successfully evaluate summaries from the general domain. First, we improve the query reformulation strategy with POS Tags analysis of general-domain corpora. Second, we replace the biomedical index used in SERA with two article collections from AQUAINT-2 and Wikipedia. We conduct experiments with TAC2008, TAC2009, and CNNDM datasets. Results show that, in most cases, GeSERA achieves higher correlations with manual evaluation methods than SERA, while it reduces its gap with ROUGE for general-domain summary evaluation. GeSERA even surpasses ROUGE in two cases of TAC2009. Finally, we conduct extensive experiments and provide a comprehensive study of the impact of human annotators and the index size on summary evaluation with SERA and GeSERA.
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Contributor : Jorge Garcia Flores Connect in order to contact the contributor
Submitted on : Friday, October 29, 2021 - 1:41:36 PM
Last modification on : Thursday, February 17, 2022 - 10:08:04 AM
Long-term archiving on: : Monday, January 31, 2022 - 9:37:56 AM


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  • HAL Id : hal-03408902, version 1


Jessica López Espejel, Gaël de Chalendar, Jorge Flores, Thierry Charnois, Ivan Meza Ruiz. GeSERA: General-domain Summary Evaluation by Relevance Analysis. RANLP 2021 Recent Advances in Natural Language Processing, Sep 2021, Online, Bulgaria. ⟨hal-03408902⟩



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