After analyzing a large amount of social annotations, we found that tags are usually semantically related to each other if they are used to tag the same or related resources for many times. Users may have similar interests if their annotations share many
After analyzing a large amount of social annotations, we found that tags are usually semantically related to each other if they are used to tag the same or related resources for many times. Users may have similar interests if their annotations share many
"Whether you realize it or not, you're already familiar with controlled vocabularies. The Library of Congress subject headings and Yahoo's search criteria are a couple of examples. So, as you've probably guessed by now, controlled vocabularies are predete