Software that can grade an essay is the great white whale of automating education. If software could actually score an essay effectively, data-mining personalized [sic] algorithm-delivered edu-product could work with more than just multiple choice and true or false questions. I’ve written a plenty about why this great white whale is not going to be landed any time soon. But let me give you a specific example of how bad one product really is, even though it’s getting funding from the Gates Foundation.

Source: CURMUDGUCATION: How Bad Is This Gates-Funded Essay Cyber-Scorer? This Bad.