Now anyone who has a Twitter account is probably well aware of the king of Trending Topics, boy wonder/pop sensation Justin Bieber. Many say he was discovered with the help of sites like Twitter and YouTube, and his fans are certainly using them to keep him in everyone's mind. A year ago it would be hard to imagine signing on to Twitter and not seeing Bieber's name as a Trending Topic. As his popularity builds, more tweets, and with more tweets, more popularity. The cycle continued in a way that any fame-hungry superstar could only dream of.
However, a little less than a year ago, the people running Twitter made changes to the Trending Topics algorithm in an effort to prevent topics like #Bieber from exponentially growing. Now instead of a function based on the cumulative tweeting about a topic over an extended period of time, the period has been shortened and repeated references are less likely to trend over and over again. A quote from the Twitter Help section explains it pretty well:
“The new algorithm identifies topics that are immediately popular, rather than topics that have been popular for a while or on a daily basis, to help people discover the ‘most breaking’ breaking news from across the world. (We had previously built in this ‘emergent’ algorithm for all local trends, described below.) We think that trending topics which capture the hottest emerging trends and topics of discussion on Twitter are the most interesting.”This was great news if you're sick of Justin Bieber. The news is not so great for those using Twitter Trending Topics to explain the "rich get richer" concept. The exponential growth in popularity that is explained by the power law distribution explains that the more popular someone or something is, the easier it is for them to become even more popular. As for Trending Topics, the exponential growth in the popularity of #Justin Bieber probably would have cemented his place in that right column. However, the people in charge at Twitter decided to remove the exponential nature of that growth, and they may have stopped #Bieber from being a Trending Topic for all eternity.
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