NDLI: Knowledge Discovery from Citation Networks

Content Provider	IEEE Xplore Digital Library
Author	Zhen Guo Zhongfei Zhang Shenghuo Zhu Yun Chi Yihong Gong
Copyright Year	2009
Abstract	Knowledge discovery from scientific articles has received increasing attentions recently since huge repositories are made available by the development of the Internet and digital databases. In a corpus of scientific articles such as a digital library, documents are connected by citations and one document plays two different roles in the corpus: \emph{document itself} and \emph{a citation of other documents}. In the existing topic models, little effort is made to differentiate these two roles. We believe that the topic distributions of these two roles are different and related in a certain way. In this paper we propose a \emph{Bernoulli Process Topic}~(BPT) model which models the corpus at two levels: \emph{document level} and \emph{citation level}. In the BPT model, each document has two different representations in the latent topic space associated with its roles. Moreover, the multi-level hierarchical structure of the citation network is captured by a generative process involving a Bernoulli process. The distribution parameters of the BPT model are estimated by a variational approximation approach. In addition to conducting the experimental evaluations on the document modeling task, we also apply the BPT model to a well known scientific corpus to discover the latent topics. The comparisons against state-of-the-art methods demonstrate a very promising performance.
Starting Page	800
Ending Page	805
File Size	274426
Page Count	6
File Format	PDF
ISBN	9781424452422
ISSN	15504786
DOI	10.1109/ICDM.2009.137
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Linear discriminant analysis Graphical models Data mining Software libraries Computer science National electric code Laboratories IP networks Databases Text mining text mining Unsupervised learning latent models
Content Type	Text
Resource Type	Article

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