Correlator: things we did, things we should do, and things we don't know how to

Correlator (http://sandbox.yahoo.com/Correlator) is a demo showcasing work developed at Yahoo! Research Barcelona in the areas of information extraction, retrieval and visualization. I will use this and other Yahoo! demos during my talk to discuss some of the technologies used, to evaluate its strengths and weaknesses, and to pinpoint some of the research problems which I find most interesting in this area.