15. The computer-implemented method of claim 14 , comprising reducing the timing factor if the calculated loss factor is greater than the calculated loss factor from a previous iteration of the iterative process, and maintaining the timing factor at its current value if the calculated loss factor is less than the calculated loss factor from the previous iteration of the iterative process.
15. The computer-implemented method of claim 14 , comprising reducing the timing factor if the calculated loss factor is greater than the calculated loss factor from a previous iteration of the iterative process, and maintaining the timing factor at its current value if the calculated loss factor is less than the calculated loss factor from the previous iteration of the iterative process. 18. The method of claim 15 , wherein reducing the timing factor comprises reducing the timing factor based at least in part on a measure of balance of training distribution for the set of training samples.