Lost in Propagation? Unfolding News Cycles from the Source
Lost in Propagation? Unfolding News Cycles from the Source
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迷失在传播中？
DOI：
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
Lada A. Adamic
中科院分区：
文献类型：
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作者：
Chenhao Tan;Adrien Friggeri;Lada A. Adamic
新闻媒体在向公众通报时事方面发挥着重要作用。然而，很难理解新闻媒体对一个事件的报道的全面性，以及报道引起的反应如何可能产生分歧，因为这需要确定事件的起源，并一直追踪信息到消费新闻的个人。在这项工作中，我们以新闻稿的形式查明事件的信息来源，并调查其新闻周期如何展开。我们通过三个传播层来跟踪新闻：报道新闻稿的新闻文章，社交媒体上这些文章的分享以及对这些分享的评论。我们发现一个新闻周期通常持续两天。虽然新闻媒体总体上覆盖了来源中包含的信息，但一篇新闻文章通常只提供部分覆盖。虽然新闻报道相对于消息来源的情绪有所下降，但社交媒体的份额和评论再次上升。当信息在各个层次中传播时，它往往会与信息源产生分歧：当信息源中强调的一些观点逐渐消失时，其他观点就会出现或变得重要。我们还发现，新闻文章在情感或语言方面与信息源的距离并不能帮助预测其受欢迎程度。
The news media play an important role in informing the public on current events. Yet it has been difficult to understand the comprehensiveness of news media coverage on an event and how the reactions that the coverage evokes may diverge, because this requires identifying the origin of an event and tracing the information all the way to individuals who consume the news. In this work, we pinpoint the information source of an event in the form of a press release and investigate how its news cycle unfolds. We follow the news through three layers of propagation: the news articles covering the press release, shares of those articles in social media, and comments on the shares. We find that a news cycle typically lasts two days. Although news media in aggregate cover the information contained in the source, a single news article will typically only provide partial coverage. Sentiment, while dampened in news coverage relative to the source, again rises in social media shares and comments. As the information propagates through the layers, it tends to diverge from the source: while some ideas emphasized in the source fade, others emerge or gain in importance. We also discover how far the news article is from the information source in terms of sentiment or language does not help predict its popularity.