Clusters

It seems that the clever guys at Flickr have come up with a new concept to help solve the problem of ambiguous tag naming.

That concept is called clustering.

I'm guessing that what they are doing is requesting base tag (for example "ultralight") and then searching for any images with this tag. They are then looking for other tags that are common amongst those images and separating the clusters based on any other common tags.

For example check out the ultralight cluster.

This is a very clever solution to the problem of ambiguous tags as it looks at each tag in the context of the other tags given to an image, and no further information needs to be provided by the user.