How to use auto-generated tags?

1. For a suggest feature in search?<p>2. For tags display of content?<p>3. Improving the auto-generated tag system through validation, in an attempt to not completely rely on user generated tags?

There is a good thread to read on flickr about <i>machine-tags</i> that you can read here ~ <a href="http://www.flickr.com/groups/api/discuss/72157594497877875/" rel="nofollow">http://www.flickr.com/groups/api/discuss/72157594497877875/</a><p>Using rdf you can represent tags as <i>"foo:bar=foobar"</i>. So your use is really only limited by the limitations of the format itself.