Peter Norvig is going deep into the science of search. It is intersting following the research person from IBM who talked about how they have research labs all over the world. Peter started his talk saying "Google doesn't have beautiful real estate all over the world, Google Labs is more about a state of mind..."
He is demonstrating semantic clustering -- very impressive to be able to see how documents are clustered by relationships between terms.
He demonstrates using the terms "george bush" and "john kerry" and everyone laughs when there are document clusters around George Bush that include "stupid" and "idiot" but these terms do not occur around John Kerry... Peter comments "this isn't what I think, this is what the web says..."
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