arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2004.04228cs.CL
收藏

用提问和提问来评估总结的事实一致性

Asking and Answering Questions to Evaluate the Factual Consistency of Summaries

New York University(纽约大学);Facebook AI(Facebook人工智能)

Alex Wang, Kyunghyun Cho, Mike Lewis

摘要:

摘要摘要模型的实际应用受到其输入的频繁事实不一致的限制。摘要的现有自动评估指标在很大程度上对此类错误不敏感。我们提出了一个自动评估协议,称为QAGS(发音为“kags”),旨在确定事实的不一致,在生成的摘要。QAGS基于这样一种直觉:如果我们询问有关摘要及其来源的问题,如果摘要与来源事实上一致,我们将得到类似的答案。为了评估QAGS,我们收集了对CNN/DailyMail的模型生成摘要的事实一致性的人类判断(Hermann等人,2015)和XSUM(Narayan等人,2018年)总结数据集。QAGS与这些判断的相关性比其他自动评估指标高得多。此外,QAGS提供了一种自然形式的可解释性:在计算QAGS时生成的答案和问题表明摘要的哪些标记不一致以及原因。我们相信QAGS是一个很有前途的工具,在自动生成可用的和事实上一致的文本。

英文摘要:

Practical applications of abstractive summarization models are limited by frequent factual inconsistencies with respect to their input. Existing automatic evaluation metrics for summarization are largely insensitive to such errors. We propose an automatic evaluation protocol called QAGS (pronounced "kags") that is designed to identify factual inconsistencies in a generated summary. QAGS is based on the intuition that if we ask questions about a summary and its source, we will receive similar answers if the summary is factually consistent with the source. To evaluate QAGS, we collect human judgments of factual consistency on model-generated summaries for the CNN/DailyMail (Hermann et al., 2015) and XSUM (Narayan et al., 2018) summarization datasets. QAGS has substantially higher correlations with these judgments than other automatic evaluation metrics. Also, QAGS offers a natural form of interpretability: The answers and questions generated while computing QAGS indicate which tokens of a summary are inconsistent and why. We believe QAGS is a promising tool in automatically generating usable and factually consistent text.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑