Louis Lei Yu

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There has been a tremendous rise in the growth of online social networks all over the world in recent years. This has facilitated users to generate a large amount of real-time content at an incessant rate, all competing with each other to attract enough attention and become trends. While Western online social networks such as Twitter have been well studied,(More)
In this paper we investigate to what extent the trending topics in Twitter, a popular social network, are manipulated by spammers. Researchers have developed various models for spam detection in social media, but there has been little analysis on the effects of spam on Twitter's trending topics. We gathered over 9 million tweets in Twitter's hourly trending(More)
There has been a tremendous rise in the growth of online social networks all over the world in recent years. This has resulted in a large amount of content created and propagated at an incessant rate, all competing with each other to attract enough attention and become trends. In this paper, we analyze the temporal aspect of trends and trend-setters in Sina(More)
There has been a tremendous rise in the growth of online social networks all over the world in recent years. It has facilitated users to generate a large amount of real-time content at an incessant rate, all competing with each other to attract enough attention and become popular trends. While Western online social networks such as Twitter have been well(More)
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