Cited by 693Topic ModelingAdvanced Text Analysis TechniquesNatural Language Processing Techniques

The DOI matches its Crossref record; 41 of the 41 references it cites were found in a registry or an index.

Evaluating the Factual Consistency of Abstractive Text Summarization

Open access
Kryscinski, Wojciech, McCann, Bryan, Xiong, Caiming, Socher, Richard·2020·Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP)

Abstract

Currently used metrics for assessing summarization algorithms do not account for whether summaries are factually consistent with source documents.We propose a weakly-supervised, model-based approach for verifying factual consistency and identifying conflicts between source documents and a generated summary.Training data is generated by applying a series of rule-based transformations to the sentences of source documents.The factual consistency model is then trained jointly for three tasks: 1) identify whether sentences remain factually consistent after transformation, 2) extract a span in the source documents to support the consistency prediction, 3) extract a span in the summary sentence that is inconsistent if one exists.Transferring this model to summaries generated by several state-of-the art models reveals that this highly scalable approach substantially outperforms previous models, including those trained with strong supervision using standard datasets for natural language inference and fact checking.Additionally, human evaluation shows that the auxiliary span extraction tasks provide useful assistance in the process of verifying factual consistency.

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Crossref · 10.18653/v1/2020.emnlp-main.750

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  • In most previous works, factuality has been defined as whether a claim in a text can be supported by evidence from a separate, trustworthy knowledge base.

    “In most previous works, factuality has been defined as whether a claim in a text can be supported by evidence from a separate, trustworthy knowledge base, with applications in fact-checking (Thorne et al., 2018b) (where the knowledge base is a large source like Wikipedia) and summarization (Kryscinski et al., 2020) (where the knowledge base is an input document or documents).”

    From FacTool: Factuality Detection in Generative AI - A Tool Augmented Framework for Multi-Task and Multi-Domain Scenarios (2023) · cites this paper as Kryscinski et al., 2020

    The Introduction defines a factually consistent summary as one whose statements are entailed by the source document. But the “Model generated claims” section explicitly says the source document is not guaranteed to be true, so it does not support describing that document as a trustworthy knowledge base. Page numbers are unavailable in our copy. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Hallucinations are observed over a wide range of tasks beyond pure fact verification.

    “Additionally, hallucinations are observed over a wide range of tasks beyond pure fact verification (Kryscinski et al., 2020; Maynez et al., 2020).”

    From SelfCheckGPT: Zero-Resource Black-Box Hallucination Detection for Generative Large Language Models (2023) · cites this paper as Kryscinski et al., 2020

    The “Model generated claims” section gives examples of factually incorrect output from summarization models, supporting the observation of hallucination-like errors in text generation. The paper examines abstractive summarization, however, and does not establish that hallucinations occur across a wide range of tasks. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Research suggests that up to 30% of machine-generated abstractive summaries may contain factual inconsistencies.

    “Research suggests that up to 30% of machine-generated abstractive summaries may contain factual inconsistencies [52, 53].”
  • The performance of the FactCC model surpasses classifiers trained on the MNLI or FEVER datasets.

    “Results show that the performance of their FactCC model surpasses the classifiers trained on the MNLI or FEVER datasets.”

    From Survey of Hallucination in Natural Language Generation (2023) · cites this paper as [126]

  • Prior synthetic data generation methods such as entity swapping and sentence negation were designed to target specific error types that occurred in claims from earlier summarization models.

    “These methods, such as entity swapping and sentence negation (Kryscinski et al., 2020;Goyal and Durrett, 2021), were designed to target specific error types that occurred in claims from earlier summarization models.”

    From MiniCheck: Efficient Fact-Checking of LLMs on Grounding Documents (2024) · cites this paper as Kryscinski et al., 2020

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Research works printed but not linked: 9

  1. Dzmitry Bahdanau, Kyunghyun Cho, and Yoshua Ben- gio. 2015. Neural machine translation by jointly learning to align and translate. In ICLR.
  2. Samuel R. Bowman, Gabor Angeli, Christopher Potts, and Christopher D. Manning. 2015. A large an- notated corpus for learning natural language infer- ence. In Proceedings of the 2015 Conference on Empirical Methods in Natural Language Processing (EMNLP). Association for Computational Linguis- tics.
  3. Kyunghyun Cho, Bart van Merrienboer, C ¸aglar Gülc ¸ehre, Dzmitry Bahdanau, Fethi Bougares, Hol- ger Schwenk, and Yoshua Bengio. 2014. Learning phrase representations using RNN encoder-decoder for statistical machine translation. In Proceedings of the 2014 Conference on Empirical Methods in Nat- ural Language Processing, EMNLP 2014, October 25-29, 2014, Doha, Qatar, A meeting of SIGDAT, a Special Interest Group of the ACL, pages 1724- 1734.
  4. Alexis Conneau, Ruty Rinott, Guillaume Lample, Ad- ina Williams, Samuel R. Bowman, Holger Schwenk, and Veselin Stoyanov. 2018. Xnli: Evaluating cross- lingual sentence representations. In Proceedings of the 2018 Conference on Empirical Methods in Nat- ural Language Processing. Association for Compu- tational Linguistics.
  5. Sergey Edunov, Myle Ott, Michael Auli, and David Grangier. 2018. Understanding back-translation at scale. CoRR, abs/1808.09381. · arXiv
  6. Ramesh Nallapati, Bowen Zhou, C ¸aglar Gülc ¸ehre, Bing Xiang, et al. 2016. Abstractive text summa- rization using sequence-to-sequence rnns and be- yond. Proceedings of SIGNLL Conference on Com- putational Natural Language Learning.
  7. Ramakanth Pasunuru and Mohit Bansal. 2018. Multi- reward reinforced summarization with saliency and entailment. CoRR, abs/1804.06451. · arXiv
  8. Matthew E. Peters, Mark Neumann, Mohit Iyyer, Matt Gardner, Christopher Clark, Kenton Lee, and Luke Zettlemoyer. 2018. Deep contextualized word rep- resentations. In Proc. of NAACL.
  9. James Thorne, Andreas Vlachos, Christos Christodoulopoulos, and Arpit Mittal. 2018. FEVER: a large-scale dataset for fact extraction and verification. CoRR, abs/1803.05355. · arXiv

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Metadata

Authors
Kryscinski, W., McCann, B., Xiong, C., & Socher, R.
Affiliations
Salesforce (United States) (US)
Venue
Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP)
Published
2020
Pages
9332-9346
OpenAlex
W2981456979
Cited by
669
References
41
Citations by year
2026: 94 · 2025: 86 · 2024: 56 · 2023: 171 · 2022: 106 · 2021: 118 · 2020: 37
FWCI
41.26
Type
conference paper
Language
en
Open access
Licence
cc-by
Locations
  • Conference on Empirical Methods in Natural Language Processing (EMNLP) (publishedVersion, cc-by)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Topic Modeling
  • Physical Sciences › Computer Science › Artificial Intelligence › Advanced Text Analysis Techniques
  • Physical Sciences › Computer Science › Artificial Intelligence › Natural Language Processing Techniques
Keywords
abstractive summarization, factual consistency, weakly supervised learning, rule-based transformation, span extraction, natural language inference, fact-checking, summarization evaluation metrics

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