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arXiv 2012.02015cs.CL
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信息偏差检测中的语境

Context in Informational Bias Detection

Leibniz ScienceCampus(莱布尼茨科学园区);Heidelberg University(海德堡大学)

Esther van den Berg, Katja Markert

摘要:

信息偏见是通过句子或子句传达的偏见,这些句子或子句提供了可能影响读者对实体的看法的切线,推测或背景信息。从本质上讲,信息偏差是依赖于上下文的,但以前的工作信息偏差检测没有探讨的作用,上下文以外的句子。在本文中,我们探讨了英语新闻文章中的信息偏见的四种语境:相邻的句子,完整的文章,来自其他新闻出版商的同一事件的文章,和来自同一领域的文章(但可能不同的事件)。我们发现,整合事件上下文提高了分类性能在一个非常强大的基线。此外,我们在这个任务上进行了模型的第一次误差分析。我们发现,表现最好的上下文包容模型优于基线较长的句子,从政治中间派的文章句子。

英文摘要:

Informational bias is bias conveyed through sentences or clauses that provide tangential, speculative or background information that can sway readers' opinions towards entities. By nature, informational bias is context-dependent, but previous work on informational bias detection has not explored the role of context beyond the sentence. In this paper, we explore four kinds of context for informational bias in English news articles: neighboring sentences, the full article, articles on the same event from other news publishers, and articles from the same domain (but potentially different events). We find that integrating event context improves classification performance over a very strong baseline. In addition, we perform the first error analysis of models on this task. We find that the best-performing context-inclusive model outperforms the baseline on longer sentences, and sentences from politically centrist articles.

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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