I'm impressed with the accuracy of MobileWorks over mechanical Turk (or pure MT- not sure if MW just filters workers heavily). I tried a receipt transcription task where I fed the same instructions and same photo to both services. Out of the box, MW was 100% while MT was about 90% for the same cost.
As Anand said we have a separate workforce. We have a bunch of algorithmic and social elements that we have developed for improving quality. In fact,we have written an IEEE paper on how to improve quality in crowdsourcing.
Glad to hear it! This is an important philosophical difference for us. Quality control in a cloud labor service should be the platform's job, not the customer's. The system should work correctly out of the box.
And yes, our workforce is separate from Turk's - part of the reason the quality is better.
