2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/165746Discussion of "Treelets--An adaptive multi-scale basis for sparse unordered data" [arXiv:0707.0481]Published in at http://dx.doi.org/10.1214/07-AOAS137D the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)ApplicationsDiscussion of: Treelets--An adaptive multi-scale basis for sparse unordered datatext