(via the MIT Center for Civic Media)
This session looks beyond platforms to explore the concept of media ecosystems. How do we understand, map, visualize, and ultimately shape the flow of texts across an increasingly diverse and complex media ecosystem? What are the relationships between professional and citizen, participatory and broadcast media? How do we understand what people are encountering, both in terms of supply (tools like Media Cloud that examine what’s published) and demand (tracking/logging efforts that look at individual or group consumption?
- Mapping Media Ecosystems at Center for Civic Media – My heart’s in Accra
- Civic Media Session: ‘Mapping Media Ecosystems’ – MIT TechTV
This article details the networked production and dissemination of news on Twitter during snapshots of the 2011 Tunisian and Egyptian Revolutions as seen through information flows—sets of near-duplicate tweets—across activists, bloggers, journalists, mainstream media outlets, and other engaged participants. We differentiate between these user types and analyze patterns of sourcing and routing information among them. We describe the symbiotic relationship between media outlets and individuals and the distinct roles particular user types appear to play. Using this analysis, we discuss how Twitter plays a key role in amplifying and spreading timely information across the globe.
- 111,741 tweets about Afghanistan and its presidential election posted between August 11, 2009 and September 9, 2009
- 11,255 tweets on August 20, 2009, the day of the election
- 29,642 users talked about Afghanistan in our dataset
- Top 10% of tweeters contributed 65% of tweets (same as Iran Election)
- Number of retweets for a user was not correlated to their tweeting volume (same as Iran Election)
- 483 hashtags were used at least 3 times
- No single, dominant hashtag (differs from Iran Election)
- 3 most used hashtags: #Afghan09, #Afghanistan, and #AfghanElection
Michael Jackson’s death created an emotional outpouring of unprecedented magnitude on Twitter. In this report, we examine 1,860,427 tweets about Jackson’s death in order to test various methods of sentiment analysis and gain insights into how people express emotion on Twitter.