Media mediate sentiments: Exploratory analysis of tweets posted before, during, and after the great East Japan earthquake

Naohiro Matsumura, Asako Miura, Masashi Komori, Kai Hiraishi

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

When the Great East Japan Earthquake occurred, Twitter was used as an infrastructure for sharing information carried by other media. In other words, Twitter is considered as a "meta medium." Earthquakerelated tweets included information that was of questionable veracity, contained vicious rumors, and propagated matters of controversy that often gave rise to various discussions and arguments. In this research, the authors analyzed 89,351,242 tweets posted from December 11, 2010 to April 16, 2012. They then extracted 9,816,625 URLs and classified the top 100 domains of these URLs into 19 media categories. The emotional reactions of Twitter users were investigated by counting the terms conveying positive and negative emotions included in the body of tweets along with the media URLs. The authors' findings revealed differences in terms of the frequency with which terms expressing emotions were evoked and differences in the patterns of their surges, across the various media. The authors also considered the usage of various terms appearing in tweets concurrently with the terms expressing emotion.

Original languageEnglish
Title of host publicationMedia Controversy
Subtitle of host publicationBreakthroughs in Research and Practice
PublisherIGI Global
Pages513-528
Number of pages16
ISBN (Electronic)9781522598701
ISBN (Print)1522598693, 9781799800866
DOIs
Publication statusPublished - 2019 Sep 6

Fingerprint

twitter
natural disaster
Japan
emotion
rumor
infrastructure
Earthquake
Sentiment
Emotion
Twitter

ASJC Scopus subject areas

  • Social Sciences(all)
  • Economics, Econometrics and Finance(all)
  • Business, Management and Accounting(all)

Cite this

Matsumura, N., Miura, A., Komori, M., & Hiraishi, K. (2019). Media mediate sentiments: Exploratory analysis of tweets posted before, during, and after the great East Japan earthquake. In Media Controversy: Breakthroughs in Research and Practice (pp. 513-528). IGI Global. https://doi.org/10.4018/978-1-5225-9869-5.ch030

Media mediate sentiments : Exploratory analysis of tweets posted before, during, and after the great East Japan earthquake. / Matsumura, Naohiro; Miura, Asako; Komori, Masashi; Hiraishi, Kai.

Media Controversy: Breakthroughs in Research and Practice. IGI Global, 2019. p. 513-528.

Research output: Chapter in Book/Report/Conference proceedingChapter

Matsumura, N, Miura, A, Komori, M & Hiraishi, K 2019, Media mediate sentiments: Exploratory analysis of tweets posted before, during, and after the great East Japan earthquake. in Media Controversy: Breakthroughs in Research and Practice. IGI Global, pp. 513-528. https://doi.org/10.4018/978-1-5225-9869-5.ch030
Matsumura N, Miura A, Komori M, Hiraishi K. Media mediate sentiments: Exploratory analysis of tweets posted before, during, and after the great East Japan earthquake. In Media Controversy: Breakthroughs in Research and Practice. IGI Global. 2019. p. 513-528 https://doi.org/10.4018/978-1-5225-9869-5.ch030
Matsumura, Naohiro ; Miura, Asako ; Komori, Masashi ; Hiraishi, Kai. / Media mediate sentiments : Exploratory analysis of tweets posted before, during, and after the great East Japan earthquake. Media Controversy: Breakthroughs in Research and Practice. IGI Global, 2019. pp. 513-528
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