Editor, Cost-sensitive data
By "Cost-sensitive" data I mean data which has different cost to get it.
E.g. for a medical diagnosis, we can use data from a blood test or a spinal fluid test, but blood test is much cheaper (and easier) to get than a spinal fluid test.
Making decision in such cases (which is really all the real-world cases) requires combining accuracy and other metrics with the cost of getting the data.