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arXiv · 2106.02278

AgreeSum: Agreement-Oriented Multi-Document Summarization

Richard Yuanzhe Pang·Adam D. Lelkes·Vinh Q. Tran·Cong Yu
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Abstract

We aim to renew interest in a particular multi-document summarization (MDS) task which we call AgreeSum: agreement-oriented multi-document summarization. Given a cluster of articles, the goal is to provide abstractive summaries that represent information common and faithful to all input articles. Given the lack of existing datasets, we create a dataset for AgreeSum, and provide annotations on article-summary entailment relations for a subset of the clusters in the dataset. We aim to create strong baselines for the task by applying the top-performing pretrained single-document summarization model PEGASUS onto AgreeSum, leveraging both annotated clusters by supervised losses, and unannotated clusters by T5-based entailment-related and language-related losses. Compared to other baselines, both automatic evaluation and human evaluation show better article-summary and cluster-summary entailment in generated summaries. On a separate note, we hope that our article-summary entailment annotations contribute to the community's effort in improving abstractive summarization faithfulness.

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Richard Yuanzhe Pang, Adam D. Lelkes, Vinh Q. Tran, Cong Yu. 2021-06-04. AgreeSum: Agreement-Oriented Multi-Document Summarization. https://arxiv.org/abs/2106.02278

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