[georgeutsin]

The problem of providing quality control is that there are a lot of edge cases; even known “high accuracy” turkers may have bad judgement sometimes, which means that every piece of data needs to be validated anyway, whether it be the researcher themselves or another paid contractor.

My undergrad thesis was to build https://tagbull.com, where we tried to have turkers validate the work of other turkers by breaking up a label into sub tasks, and getting multi-turker consensus on those before moving forward.

The main issue we ran into is that the incentive system is incredibly misaligned with the responsibility that the turkers have. It’s very difficult to build trust, especially with a crowd of people who haven’t signed contracts, and who face virtually no repercussions for doing bad work, whether intentionally or unintentionally.