| http://www.w3.org/ns/prov#value | - Winner of the best paper prize last year at ACM??s 23rd symposium on User Interface Software and Technology, VizWiz sidesteps the problem of having a computer try to decipher such problems as reading can labels for blind people, by handing the chore off to a crowd of awaiting workers who look at a photograph the user has taken, listen to a question about it from them, then respond by recording an
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