Abstract: Main research on microblog hotspots detection focus on both the text and topic and the structural analysis of social networks. Due to short and semi-structured characteristics of microblog, the traditional hot topic detection methods isn’t suit such microblog detection. This paper proposes a microblog hot topic detection methods based on keywords, and uses the microblog multielement data to modify the method. Experiments show the effectiveness of the proposes method for microblog data.

Key words: microblog hot topic detection, microblog platform, VSM(Vector Space Model), multielement data