For while, the queen awaiting, round he gazed, / and marvelled at he happy town, and scanned / the rival labours of each craftman's hand, / behold, Troy's battles on the walls appear, / the war, since noised through many a distant land, / there Priam and th' Atridae twain, and here / Achilles, fierce to both, still ruthless and severe.
Source: tatoeba (6790966)
The first variant consists in alternating noised phases with unnoised descents. More precisely, in order to stay closer to the original function f, we may apply a given number v of elementary transformations with respect to the noised function f_(noised), then a descent with respect to f until a local minimum is reached, then again v noised trials, then a descent with respect to f, and so on.
Source: wiktionary