信息网络安全 ›› 2014, Vol. 14 ›› Issue (9): 127-131.doi: 10.3969/j.issn.1671-1122.2014.09.029

• Orginal Article • Previous Articles     Next Articles

Classification-based Hot Topic Detection Approach on Chinese Micro-blog

ZHENG Fei, ZHANG Lei   

  1. Shanghai Bureau of Public Security, Shanghai 200025, China
  • Received:2014-08-06 Online:2014-09-01

Abstract: Smart-phones and micro-blog client reinforce the micro-blog media features. Therefore, Micro-blog hot topic real-time detection can provide valuable research results in relevant fields. The paper introduces a real-time hot micro-blog topic detection method based on keywords classification. Filtered micro-blog messages were classified according to keywords. A multi-weight function based on the word frequency and growth in the time window was used to extract the key words of micro-blog information. An improved single-pass clustering algorithm based on same-text conditional probability was used to find the micro-blog hot topic. The results show that the approach is effect in clustering micro-blog hot topic in real time.

Key words: classification, micro-blog, topic detection, clustering