Researcher presents latest work on tracking ideas in social media

February 19, 2012

Indiana University's Filippo Menczer has shown how to "out" political astroturfers through his complex networks laboratory's study of information diffusion on Twitter. The research team went on to learn that while retweet networks are politically segregated between left- and right-leaners, Twitter "mentions" actually create a communication bridge between the two partisan groups.

Now the Truthy team has added new features for analyzing political that includes the capability for citizens to interact with the data and then explore the impact, partisanship and sentiment of the users involved in the diffusion of a meme. New tools on the Truthy website also allow visitors to see the location of users involved in movement, and permit them to download of interest from and generate videos of actual meme diffusion as it occurs.

Menczer, a professor of computer science and informatics, unveiled the today during a panel discussion titled "Web Surveillance: Fighting Terrorism and " and presented during the annual meeting of the . The title of his presentation was "Tracking the Diffusion of Ideas in Social Media."

This latest news from IU's Center for and Systems Research, of which Menczer is director, also introduced evidence that scientists can now reproduce the incredible diversity of popular and persistent (and the unpopular and fading) nuggets of information in social networks without assuming that some ideas are better than others.

Focused on the advancement of Web surveillance methodologies developed in the fields of information management, global , linguistic ontology, complex networks and epidemiology, and on the tools used by the lab -- innovative Web mining algorithms, space-time analysis, user-generated content and social networks -- the symposium highlighted new directions in research on information dynamics.

"One domain of particular interest is that of politics. Social media platforms play an important role in shaping political discourse in the U.S. and around the world," Menczer said. "Our infrastructure allows us to mine a large stream of social media data related to political themes, and this analysis addresses polarization, cross-ideological communication and partisan asymmetries in the online political activities of social media users."

Before the 2010 U.S. mid-term elections, Menczer and others at IU's School of Informatics and Computing unveiled Truthy, a sophisticated Twitter-based research tool that combined data mining, social network analysis and crowdsourcing to successfully uncover deceptive tactics and misinformation leading up to the elections. The work received international attention, including coverage in the Wall Street Journal, Science, The Atlantic, National Public Radio, the Australian and Canadian Broadcasting Systems, Spain's El Pais and Italy's La Repubblica.

"We are now able to introduce a model of the competition for attention in social media, and from this a dynamic process of information diffusion emerges where a few ideas go viral, but most do not," Menczer said. "We now know it is possible that the relative popularity of different topics, the diversity of information to which we are exposed, and the fading of our collective interests for specific memes all derive from a combination between the competition for limited attention and the structure of social networks. Surprisingly, one can reproduce the massive heterogeneity in the popularity and persistence of ideas without the need to assume different intrinsic values among those ideas."

The team matches real-time, streaming Twitter data against keywords to exclude tweets unlikely to contain political discussion and then extracts memes like mentions, hashtags and URLs. Memes of interest are isolated by considering only those that account for a significant portion of the total volume. Memes are then inserted in a database, tracked, analyzed and visualized to obtain more information on each one.

Diffusion movies of political memes can be found and shared on the team's YouTube site and on the research team's Truthy website.

Explore further: Social media and presidential election: Scientists examine impact of YouTube, MySpace

Related Stories

Yahoo is Going Portuguese Hound to Outwit Twitter

May 15, 2009

Brazil, a Portuguese speaking country is the 10th largest economy in the world and Yahoo has decided to get in on the action by coming up with a clone Twitter. The economic down-turn has affected Brazil to some degree, but ...

The Twit-election: It's the conversation, stupid

August 18, 2010

( -- When it comes to Saturday's federal election in Australia, Twitter users are clear: politicians who spend time in conversation get most out of the platform, and the Greens are exploiting this better than ...

Journalists prefer Twitter: Spanish study

September 26, 2011

Research carried out by professors at Universidad Carlos III de Madrid (UC3M) analyzing how Spanish journalists use the main social networks shows that Twitter is the most widely used, particularly to disseminate information.

Recommended for you

Inferring urban travel patterns from cellphone data

August 29, 2016

In making decisions about infrastructure development and resource allocation, city planners rely on models of how people move through their cities, on foot, in cars, and on public transportation. Those models are largely ...

How machine learning can help with voice disorders

August 29, 2016

There's no human instinct more basic than speech, and yet, for many people, talking can be taxing. 1 in 14 working-age Americans suffer from voice disorders that are often associated with abnormal vocal behaviors - some of ...

Apple issues update after cyber weapon captured

August 26, 2016

Apple iPhone owners on Friday were urged to install a quickly released security update after a sophisticated attack on an Emirati dissident exposed vulnerabilities targeted by cyber arms dealers.


Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.