Creating tag hierarchies for effective navigation in social media

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Creating tag hierarchies for effective navigation in social media

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Conference on Information and Knowledge Management archive
Proceeding of the 2008 ACM workshop on Search in social media table of contents

Napa Valley, California, USA

SESSION: Social network analysis table of contents

Pages 75-82

Year of Publication: 2008

ISBN:978-1-60558-258-0

Authors

K. Selçuk Candan	Arizona State University, Tempe, AZ, USA
Luigi Di Caro	Universita' di Torino, Torino, Italy
Maria Luisa Sapino	Universita' di Torino, Torino, Italy

Sponsors

ACM: Association for Computing Machinery
SIGWEB: ACM Special Interest Group on Hypertext, Hypermedia, and Web
SIGIR: ACM Special Interest Group on Information Retrieval

Publisher

ACM New York, NY, USA

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ABSTRACT

In social media, such as blogs, since the content naturally evolves over time, it is hard or in many cases impossible to organize the content for effective navigation. Thus, one commonly has to resort to simple tools, such as tags and tag clouds, for presenting frequently used keywords to users to provide them at least some high level idea about the content of a given set of social media entries. Most visualizations of tag clouds vary the sizes of the fonts to differentiate important tags from those that are less important. We propose an alternative "contextual-layout" method, TMine, for analyzing and presenting tags that are extracted from textual content. In TMine tags are first mapped onto a latent semantic space. Then, TMine analyzes the relationships between tags relying on an extended boolean interpretation of the semantic space. The tag cloud is condensed into a hierarchy in a way that captures contextual relationships between tags: in particular, descendant terms in the hierarchy occur within the context defined by the ancestor terms. This provides a mechanism for navigation within the tag space as well as for classification of the text documents based on the contextual structure implied by the tags.

REFERENCES

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