is desired in applications where the number of items to be shown to the user is limited. Weighted arithmetic means and
OWA functions are strictly monotone when w j > 0, ∀ j, while geometric and
harmonic means are strict for x ∈]0, 1]n. Aggregation functions which are not
strict, the maximum function for instance, could not distinguish between an item
d1 = (0.3, 0.8) and another d2 = (0.8, 0.8).