Backward error: the error between the given question, and the question whose right answer is the given answer.
Easier to parse like this: a small forward error means that you give an answer close to the right one.
A small backward error means that the answer you give is the right answer for a nearby question.
Backward error: the error between the given question, and the question whose right answer is the given answer.
Easier to parse like this: a small forward error means that you give an answer close to the right one.
A small backward error means that the answer you give is the right answer for a nearby question.