se.m.edia

Tim Finin recently announced a new version of Swoogle, THE Semantic Web search engine. After some initial hiccups the service now seems to work fine, again. Thanks to the UMBC eBiquity team, you're doing a great job!

One thing puzzles me. Though I read the manual (which seems a bit outdated), I did not figure out how to find certain instances. Take for example the query 'return all documents that have a foaf:mbox = abc@example.org in it'. I'll continue the experiments ;) 

Now, this is really good news: Flickr is rolling out a new feature called machine tags that allows users to be more precise in how they tag, and how they search, their photos.

Machine tags are tags that use a special syntax to define extra information about a tag; they have a namespace, a predicate and a value. The namespace defines a class or a facet that a tag belongs to ('geo', 'flickr', etc.), and the predicate is the name of the property for a namespace ('latitude', 'user', etc).