1. A method for performing an operation on data comprising: accessing data from a repository, the data including a feature of interest identifiable from the data; receiving an assessment from a human operator regarding the feature of interest in the accessed data; accessing supplemental data including a known correct assessment of a similar feature of interest identifiable from the supplemental data; analyzing the accessed data, the received assessment and the supplemental data via a computer-assisted data operating algorithm; and providing feedback to the human operator based upon the analysis.