An improved topic detection method for Chinese microblog based on incremental clustering

作者：Liu, Gongshen; Meng, Kui; Xie, Jing

来源：Journal of Software, 2013, 8(9): 2313-2320.

DOI：10.4304/jsw.8.9.2313-2320

• Chinese microblog
• Computation methods
• Hier-archical clustering
• Incremental clustering
• Micro-blog
• Service provider
• Topic detection
• Updating methods

A topic detection model based on hierarchical clustering for Chinese microblog is proposed in this paper. In order to minimize the impact of noise, we optimize the feature selection and weight computation method and use a new scoring method to filter out those topic-unrelated tweets. We also give an improved topic detection algorithm which uses a new vector distance calculation method and center vector updating method. It is shown by the experiment that this method can filter out majority of the topic-unrelated tweets and identify microblog topics accurately and efficiently. The study of microblog topic detection method can help users and service providers find out microblog hot topics dynamically.

• 出版日期2013
• 单位上海交通大学