A Bottom-up Method for Constructing Topic Hierarchies
Yuhao Zhang; Wenji Mao; Xiaochen Li
2015
会议名称IEEE International Conference on Intelligence and Security Informatics
会议日期27 May - 29 May 2015
会议地点Baltimore, MD, USA
摘要In security-related applications, it is of great need to construct topic hierarchies from the data automatically. It can help us better understand the contents and structure of information and benefit many applications in security informatics. The existing topic hierarchy construction methods either need to specify the structure manually, or are not robust enough for sparse social media data such as microblog. In this paper, we propose an approach to automatically construct topic hierarchies from microblog data in a bottom up manner. We first detect the fine grained topics and then build the topic structure based on a multi-branch hierarchical construction method. We conduct a preliminary empirical study based on Weibo data. The experimental results show that the hierarchical topic structure generated by our method can provide meaningful results.
 
文献类型会议论文
条目标识符http://ir.ia.ac.cn/handle/173211/14509
专题复杂系统管理与控制国家重点实验室_互联网大数据与信息安全
作者单位Institute of Automation, Chinese Academy of Sciences
推荐引用方式
GB/T 7714
Yuhao Zhang,Wenji Mao,Xiaochen Li. A Bottom-up Method for Constructing Topic Hierarchies[C],2015.
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