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arXiv 2008.00854cs.SIcs.CY
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2019冠状病毒病大流行期间Twitter上的公众风险认知和情绪

Public risk perception and emotion on Twitter during the Covid-19 pandemic

Joel Dyer, Blas Kolic

摘要:

成功应对新冠肺炎疫情取决于公众对安全措施的合作以及对风险的适当认知,其中情绪和注意力发挥着重要作用。公众情绪和注意力的签名存在于社交媒体数据中,因此,对本文的自然语言分析能够对公众风险感知指标进行近乎实时的监测。我们将疫情进展的关键流行病学指标与公众对疫情的看法指标进行了比较,这些指标是根据2020年3月10日至6月14日期间发布的来自12个国家的约2000万条与新冠肺炎相关的独特推文构建的。我们发现了心理物理麻木的证据:Twitter用户越来越关注死亡,但情绪化程度越来越低,分析性越来越强。基于词语共现的语义网络分析揭示了新冠肺炎患者情绪框架的变化,这与这一假设一致。我们还发现,对全国新冠肺炎死亡率的平均关注度与感官知觉的韦伯-费希纳和幂律函数准确地建模。我们对这些模型的参数估计与心理学实验的估计一致,并表明该数据集中的用户对国家Covid-19死亡率表现出不同的敏感性。我们的工作说明了社交媒体在危机情景中监测公众风险感知和引导公众沟通的潜在效用。

英文摘要:

Successful navigation of the Covid-19 pandemic is predicated on public cooperation with safety measures and appropriate perception of risk, in which emotion and attention play important roles. Signatures of public emotion and attention are present in social media data, thus natural language analysis of this text enables near-to-real-time monitoring of indicators of public risk perception. We compare key epidemiological indicators of the progression of the pandemic with indicators of the public perception of the pandemic constructed from ~20 million unique Covid-19-related tweets from 12 countries posted between 10th March -- 14th June 2020. We find evidence of psychophysical numbing: Twitter users increasingly fixate on mortality, but in a decreasingly emotional and increasingly analytic tone. Semantic network analysis based on word co-occurrences reveals changes in the emotional framing of Covid-19 casualties that are consistent with this hypothesis. We also find that the average attention afforded to national Covid-19 mortality rates is modelled accurately with the Weber-Fechner and power law functions of sensory perception. Our parameter estimates for these models are consistent with estimates from psychological experiments, and indicate that users in this dataset exhibit differential sensitivity by country to the national Covid-19 death rates. Our work illustrates the potential utility of social media for monitoring public risk perception and guiding public communication during crisis scenarios.

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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