tedster - 6:31 am on Mar 31, 2011 (gmt 0)
I think one key card that Google let us see this year is their concept of a "document classifier". It sounds to me like this all important step might occur early in the automated evaluation. Then depending on what assignment is made, very different metrics can apply. Just my current operating theory of course - but if it's true, then I'd love to know is what classifications are currently possible.