CASIA OpenIR  > 模式识别国家重点实验室  > 自然语言处理
Ensure the Correctness of the Summary: Incorporate Entailment Knowledge into Abstractive Sentence Summarization
Li, Haoran1,2; Zhu, Junnan1,2; Zhang, Jiajun1,2; Zong, Chengqing1,2,3
2019
会议名称Proceedings of the 27th International Conference on Computational Linguistics
会议日期2018, 8,20-26
会议地点Santa Fe, New Mexico, USA
摘要

In this paper, we investigate the sentence summarization task that produces a summary from a source sentence. Neural sequence-to-sequence models have gained considerable success for this task, while most existing approaches only focus on improving word overlap between the generated summary and the reference, which ignore the correctness, i.e., the summary should not contain error messages with respect to the source sentence. We argue that correctness is an essential requirement for summarization systems. Considering a correct summary is semantically entailed by the source sentence, we incorporate entailment knowledge into abstractive summarization models. We propose an entailment-aware encoder under multi-task framework (i.e., summarization generation and entailment recognition) and an entailment-aware decoder by entailment Reward Augmented Maximum Likelihood (RAML) training. Experimental results demonstrate that our models significantly outperform baselines from the aspects of informativeness and correctness.

文献类型会议论文
条目标识符http://ir.ia.ac.cn/handle/173211/23109
专题模式识别国家重点实验室_自然语言处理
作者单位1.National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences
2.University of Chinese Academy of Sciences
3.CAS Center for Excellence in Brain Science and Intelligence Technology
推荐引用方式
GB/T 7714
Li, Haoran,Zhu, Junnan,Zhang, Jiajun,et al. Ensure the Correctness of the Summary: Incorporate Entailment Knowledge into Abstractive Sentence Summarization[C],2019.
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