Jacques, Vleeschouwer, Boursier, Sudhakar, Pizurica, Anthoine, Vandergheynst, Frossard, Bilen, Bertin, Gribonval, Boumal, Mishra, Absil, Sepulchre, Bundervoet, Schretter, Dooms, Schelkens, Chabiron, Tourneret, Dobigeon, Chainais, Richard, Cornelis, Daubechies, Dunson, Dankova, Rajmic, Degraux, Cambareri, Geelen, Lafruit, Setti, Determe, Louveaux, Horlin, Drémeau, Heas, Herzet, Duval, Peyré, Fawzi, Davies, Gillis, Vavasis, Soussen, Magoarou, Liang, Fadili, Liutkus, Martina, Gigan, Daudet, Maggioni, Minsker, Mory, Ngole, Starck, Loris, Vaiter, Golbabaee, Vukobratovic, 2014. Proceedings of the second "international Traveling Workshop on Interactions between Sparse models and Technology" (iTWIST'14).