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arXiv 2006.03221cs.CLcs.LG
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句子和段落层次上的语篇连贯性评价

Evaluating Text Coherence at Sentence and Paragraph Levels

China Foreign Affairs University(外交学院);Peking University(北京大学)

Sennan Liu, Shuang Zeng, Sujian Li

摘要:

在本文中,为了评估文本的连贯性,我们提出了段落排序任务并进行句子排序。我们收集了四个不同的语料库,从不同的领域,我们调查适应现有的句子排序方法的段落排序任务。我们还比较了现有模型的可学习性和鲁棒性,分别通过人工创建迷你数据集和噪声数据集,并在这些情况下验证所建立的模型的效率。此外,我们对来自两个竞争模型的重排通道进行了人类评估,并确认WLCS-1是一个比tau更好的度量,与人类评级的相关性显著更高,tau是之前使用的最普遍的度量。结果表明,除了某些极端情况外,基于递归图神经网络的模型是相干建模的最佳选择。

英文摘要:

In this paper, to evaluate text coherence, we propose the paragraph ordering task as well as conducting sentence ordering. We collected four distinct corpora from different domains on which we investigate the adaptation of existing sentence ordering methods to a paragraph ordering task. We also compare the learnability and robustness of existing models by artificially creating mini datasets and noisy datasets respectively and verifying the efficiency of established models under these circumstances. Furthermore, we carry out human evaluation on the rearranged passages from two competitive models and confirm that WLCS-l is a better metric performing significantly higher correlations with human rating than tau, the most prevalent metric used before. Results from these evaluations show that except for certain extreme conditions, the recurrent graph neural network-based model is an optimal choice for coherence modeling.

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。

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