I thought we were defining the positive example as the very rare cases we care about (e.g. fraudulent transactions). So on page 74 why do we assign positive lower weight instead of negative? To balance, don't we need to assign the negative examples lower weight?
I thought we were defining the positive example as the very rare cases we care about (e.g. fraudulent transactions). So on page 74 why do we assign positive lower weight instead of negative? To balance, don't we need to assign the negative examples lower weight?