Wipe that insincere, two-faced grin off your face -- your computer knows you're full of it. Or at least it will once it gets a load of MIT's research on classifying frustration, delight and facial expressions. By teaching a computer how to differentiate between involuntary smiles of frustration and genuine grins of joy, researchers hope to be able to deconstruct the expression into low-level features. What's the use of a disassembled smile? In addition to helping computers suss out your mood, the team hopes the data can be used to help people wit
