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International Multimedia Conference archive
Proceedings of the seventeen ACM international conference on Multimedia table of contents

Beijing, China

SESSION: Short papers session 3: applications and systems table of contents

Pages 813-816

Year of Publication: 2009

ISBN:978-1-60558-608-3

Authors

Radu-Andrei Negoescu	Idiap Research Institute, Martigny, Switzerland
Brett Adams	Curtin University of Technology, Perth, Australia
Dinh Phung	Curtin University of Technology, Perth, Australia
Svetha Venkatesh	Curtin University of Technology, Perth, Australia
Daniel Gatica-Perez	Idiap Research Institute, Martigny, Switzerland

Sponsor

SIGMULTIMEDIA: ACM Special Interest Group on Multimedia

Publisher

ACM New York, NY, USA

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ABSTRACT

The amount of multimedia content available online constantly increases, and this leads to problems for users who search for content or similar communities. Users in Flickr often self-organize in user communities through Flickr Groups. These groups are particularly interesting as they are a natural instantiation of the content~+~relations social media paradigm. We propose a novel approach to group searching through hypergroup discovery. Starting from roughly 11,000 Flickr groups' content and membership information, we create three different bag-of-word representations for groups, on which we learn probabilistic topic models. Finally, we cast the hypergroup discovery as a clustering problem that is solved via probabilistic affinity propagation. We show that hypergroups so found are generally consistent and can be described through topic-based and similarity-based measures. Our proposed solution could be relatively easily implemented as an application to enrich Flickr's traditional group search.

REFERENCES

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

	1	M. Ames and M. Naaman. Why we tag: motivations for annotation in mobile and online media. In CHI '07: Proc. of the SIGCHI Conf. on Human Factors in Computing Systems, San Jose, CA, USA, 2007.
	2	D. M. Blei, A. Y. Ng, and M. I. Jordan. Latent dirichlet allocation. J. Mach. Learn. Res., 3, 2003.
	3	B. J. Frey and D. Dueck. Clustering by passing messages between data points. Science, 315:972--976, 2007.
	4	T. L. Griffiths and M. Steyvers. Finding scientific topics. Proc Natl Acad Sci U S A, April 2004.
	5	K. Lerman and L. Jones. Social Browsing on Flickr, Dec 2006.
	6	K. Lerman, A. Plangprasopchok, and C. Wong. Personalizing Image Search Results on Flickr, Apr 2007.
	7	R. A. Negoescu and D. Gatica-Perez. Analyzing Flickr Groups. In CIVR '08: Proc. of the Intl. Conf. on Image and Video Retrieval, Niagara Falls, Canada, July 2008.
	8	R. A. Negoescu and D. Gatica-Perez. Topickr: Flickr Groups and Users Reloaded. In MM '08: Proc. of the 16th ACM Intl. Conf. on Multimedia, Vancouver, Canada, Oct. 2008.