Website ranks Twitter users by influence

NORTHWESTERN (US)—Having tons of followers on Twitter doesn’t necessarily mean you’re among the most influential people in the Twitterverse, according to new research.

If you really want to know the most influential people tweeting on the hot topics of the day, go to pulseofthetweeters.com. The website went online in May and has been tracking the top trending topics from Twitter in real time ever since.

The website was created in the laboratory of Alok Choudhary, a professor of electrical engineering and computer science at Northwestern University.

“The question we’re really asking is: Whose opinions are most interesting and influential on any given topic?” says Ramanathan Narayanan, a Ph.D. candidate involved in the project.

The website uses a specialized algorithm to rank the most influential people tweeting on trending topics.

For example, if you are interested in baseball playoffs, the website will rank the most influential Twitter users who actively tweet about baseball playoffs and also have a following of baseball fans who tweet about the sport.

“There are about 50 million tweets produced every day, but most of us only read 10 or 20 tweets in one sitting,” Narayanan says. “So, which tweets should you read? Which tweets are being read by media experts on any given subject, such as politics, law, fashion, food? We provide that information for users.”

The algorithm for the website combines dynamic data mining, sentiment analysis, and network analysis in real time. Besides identifying the most influential tweeters, the algorithm can tell you whether their tweets are positive, negative, or neutral. It also offers related topics to explore.

“Discovering patterns, opinions, and sentiments from massive number of tweets is challenging in itself, but discovering influencers and leaders for specific topics is a major technological advance in data mining,” says Choudhary.

While celebrities gain huge followings in the Twitterverse, the top influencers on the hot topics of the day are likely to be people with much lower profiles.

“If someone from BP is tweeting about the oil spill, for example, his opinions are likely to carry much more weight and be of much greater interest than those of Ashton Kutcher, who has a legion of followers,” Narayanan says.

The technology can filter out spam, too. It is able to identify bots that send bogus tweets and rank them at the bottom of search results.

“The good thing about our system is it’s completely automatic, and it needs minimal human supervision,” Narayanan says. “We are able to generate really useful choices for people who are interested in Twitter.”

In the future, the website could track many more topics, including those that are not trending on Twitter.

“The website could be used by companies who want to know what people are saying about their product,” Narayanan says. “They could find out if top influencers are saying positive, negative or neutral things about their product, and that may have a lot of implications.”

More news from Northwestern: www.northwestern.edu/newscenter

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2 Comments

  1. WillWoodsIA

    I seem to recall Cryptome releaseasing a Special Operations document calling for this:

    http://cryptome.org/dodi/jsou-06-5.pdf

    Hooray military-industrial complex.

  2. ivy

    nice :)

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