“…We kept the size of the active item's neighborhood fixed to 60 (as in [55]), and ran our algorithm repeatedly for different values of k, k = {2, 4,6,8,10,11,12,13,14,15,16,17,18,19,20,22,24,26,28,30,35,40,45, 50}, which is a bigger set of values than in [55] where authors used only eight values of k. Fig. 10 collects the mean absolute errors observed by those runs, while the averaged over the five data splits from the data set is shown in Fig.…”