New article by Hearst/ usability of faceted categories for search

Thought I'd draw your attention to a new article by Marti Hearst:

Clustering versus Faceted Categories for Information.
Communications of the ACM, 49 (4), April 2006. p. 59-61.

Excerpt: There are many open research questions about how to generate
useful groupings and
how to design interfaces to support exploration using grouping.
Currently two methods are
quite popular: clustering and faceted categorization. Here, I describe
both approaches and
summarize their advantages and disadvantages based on the results of
usability studies.

Linked to the Flamenco website:
http://bailando.sims.berkeley.edu/papers/cacm06.pdf


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