Mainstream media behavior analysis on Twitter: a case study on UK general election

  • Authors:
  • Zhongyu Wei;Yulan He;Wei Gao;Binyang Li;Lanjun Zhou;Kam-fai Wong

  • Affiliations:
  • The Chinese University of Hong Kong, Shatin, N.T., Hong Kong;Aston University, Birmingham, UK;Qatar Computing Research Institute, Qatar Foundation, Doha, Qatar;The Chinese University of Hong Kong, Shatin, N.T., Hong Kong;The Chinese University of Hong Kong, Shatin, N.T., Hong Kong;The Chinese University of Hong Kong, Shatin, N.T., Hong Kong and Key Laboratory of High Confidence Software Technologies, Ministry of Education, China

  • Venue:
  • Proceedings of the 24th ACM Conference on Hypertext and Social Media
  • Year:
  • 2013

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Abstract

With the development of social media tools such as Facebook and Twitter, mainstream media organizations including newspapers and TV media have played an active role in engaging with their audience and strengthening their influence on the recently emerged platforms. In this paper, we analyze the behavior of mainstream media on Twitter and study how they exert their influence to shape public opinion during the UK's 2010 General Election. We first propose an empirical measure to quantify mainstream media bias based on sentiment analysis and show that it correlates better with the actual political bias in the UK media than the pure quantitative measures based on media coverage of various political parties. We then compare the information diffusion patterns from different categories of sources. We found that while mainstream media is good at seeding prominent information cascades, its role in shaping public opinion is being challenged by journalists since tweets from them are more likely to be retweeted and they spread faster and have longer lifespan compared to tweets from mainstream media. Moreover, the political bias of the journalists is a good indicator of the actual election results.