Philippe Bossut wrote:
*But*, saying that there is no spelled out hierarchies between the
tags does not mean that there is no structure between them. Such a
structure will need to be deduced through how the tagged items relate
to each other. Segmentation techniques should be able to infer a local
hierarchy of tags even in the most tangled set. Once the local
hierarchy is deduced (and appropriately displayed), one can imagine to
turn "off" a whole node ("work" in the example given by Bobby).
There was a paper at CIKM in 2005 about automatically generating
hierarchies of tags based on their frequency of co-occurrence:
http://pages.stern.nyu.edu/~panos/publications/cikm2005.pdf.
Davor
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