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arXiv 2102.06505cs.CY
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当没有新闻就是坏消息时--从新闻媒体内容中发现负面事件

When no news is bad news -- Detection of negative events from news media content

Kristoffer L. Nielbo, Frida Haestrup, Kenneth C. Enevoldsen, Peter B. Vahlstrup, Rebekah B. Baglini, Andreas Roepstorff

摘要:

在2019冠状病毒病第一波疫情期间,可以在新闻媒体内容流中观察到信息脱钩。读者所体验的新闻源内部和之间的内容对齐的必然结果(即,所有的新闻都变成了Corona-news),新闻内容的新颖性随着媒体单调地关注流行病事件而下降。随着疫情的持续,这一至关重要的新冠肺炎新闻主题变得相当持久,从新闻媒体的角度来看,这导致了一种矛盾的情况,即同一条新闻被一遍又一遍地重复。这种信息现象,新颖性降低和持久性增加,以前被用来跟踪新闻媒体的变化,但在这项研究中,我们专门测试的说法,新的信息解耦行为的媒体可以用来可靠地检测变化的新闻媒体内容起源于一个负面的事件,使用贝叶斯方法来改变点检测。

英文摘要:

During the first wave of Covid-19 information decoupling could be observed in the flow of news media content. The corollary of the content alignment within and between news sources experienced by readers (i.e., all news transformed into Corona-news), was that the novelty of news content went down as media focused monotonically on the pandemic event. This all-important Covid-19 news theme turned out to be quite persistent as the pandemic continued, resulting in the, from a news media's perspective, paradoxical situation where the same news was repeated over and over. This information phenomenon, where novelty decreases and persistence increases, has previously been used to track change in news media, but in this study we specifically test the claim that new information decoupling behavior of media can be used to reliably detect change in news media content originating in a negative event, using a Bayesian approach to change point detection.

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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