Predicting on retweeting of hot topic tweets in microblog

Weibo is a very popular microblogging social network for people to share and spread news with their followers in China. And everybody in Weibo can be an information source. The massages propagate quite quickly especially when it is a hot event. We proposed a method on how to predict the retweeting number of a certain tweet related to popular topic. Our algorithm is based on the similarity and attributes model of the tweets. We have proved that our algorithm has a good performance on predicting the tweets' retweeting number.