Discovery of latent subcommunities in a blog's readership

Adams, Brett, Phung, Dinh and Venkatesh, Svetha 2010, Discovery of latent subcommunities in a blog's readership, ACM transactions on the web, vol. 4, no. 3, pp. 1-30.

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Title Discovery of latent subcommunities in a blog's readership
Author(s) Adams, Brett
Phung, DinhORCID iD for Phung, Dinh orcid.org/0000-0002-9977-8247
Venkatesh, SvethaORCID iD for Venkatesh, Svetha orcid.org/0000-0001-8675-6631
Journal name ACM transactions on the web
Volume number 4
Issue number 3
Start page 1
End page 30
Total pages 30
Publisher Association for Computing Machinery
Place of publication New York, N. Y.
Publication date 2010-07
ISSN 1559-1131
1559-114X
Keyword(s) affinity propagation
blog
topic models
web communities
Summary The blogosphere has grown to be a mainstream forum of social interaction as well as a commercially attractive source of information and influence. Tools are needed to better understand how communities that adhere to individual blogs are constituted in order to facilitate new personal, socially-focused browsing paradigms, and understand how blog content is consumed, which is of interest to blog authors, big media, and search. We present a novel approach to blog subcommunity characterization by modeling individual blog readers using mixtures of an extension to the LDA family that jointly models phrases and time, Ngram Topic over Time (NTOT), and cluster with a number of similarity measures using Affinity Propagation. We experiment with two datasets: a small set of blogs whose authors provide feedback, and a set of popular, highly commented blogs, which provide indicators of algorithm scalability and interpretability without prior knowledge of a given blog. The results offer useful insight to the blog authors about their commenting community, and are observed to offer an integrated perspective on the topics of discussion and members engaged in those discussions for unfamiliar blogs. Our approach also holds promise as a component of solutions to related problems, such as online entity resolution and role discovery.
Language eng
Field of Research 080305 Multimedia Programming
Socio Economic Objective 890205 Information Processing Services (incl. Data Entry and Capture)
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2010, ACM
Persistent URL http://hdl.handle.net/10536/DRO/DU:30044202

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