The sobering thought is if you work in machine learning, big data, or talk to someone who does. What do you consider a good accuracy rate for your machine lear

The sobering thought is if you work in machine learning, big data, or talk to someone who does. What do you consider a good accuracy rate for your machine learned / hand-engineered heuristic? 95%? 99%? 90%? We've built some real marvels of machine learning, but you can get away with the occasional not-very-rare horrible failures in speech recognition, photo labeling, or machine translation, and it just results in some giggles on Reddit.