Understanding topic influence based on module network

Authors:
Jinlong Wang;Congfu Xu;Dou Shen;Guojing Luo;Xueyu Geng
Affiliations:
School of Computer Engineering, Qingdao Technological University, Qingdao, China;Institute of Artificial Intelligence, Zhejiang University, Hangzhou, China;Microsoft adCenter Labs, Redmond, WA;Institute of Artificial Intelligence, Zhejiang University, Hangzhou, China;Institute of Geotechnical Engineering Research, Zhejiang University, Hangzhou, China
Venue:
ICADL'07 Proceedings of the 10th international conference on Asian digital libraries: looking back 10 years and forging new frontiers
Year:
2007

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Abstract

Topic detection and analysis is very important to understand academic document collections. By further modeling the influence among the topics, we can understand the evolution of research topics better. This problem has attracted much attention recently. Different from the existing works, this paper proposes a solution which discovers hidden topics as well as the relative change of their intensity as a first step and then uses them to construct a module network. Through this way, we can produce a generalization module among different topics. In order to eliminate the instability of topic intensity for analyzing topic changes, we adopt the piece-wise linear representation so that we can model the topic influence accurately. Some experiments on real data sets validate the effectiveness of our proposed method.