A Bottom-up Method for Constructing Topic Hierarchies
Yuhao Zhang; Wenji Mao; Xiaochen Li
Conference NameIEEE International Conference on Intelligence and Security Informatics
Conference Date27 May - 29 May 2015
Conference PlaceBaltimore, MD, USA
AbstractIn 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.
Document Type会议论文
AffiliationInstitute of Automation, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Yuhao Zhang,Wenji Mao,Xiaochen Li. A Bottom-up Method for Constructing Topic Hierarchies[C],2015.
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