NAKASHIKA, Toru; OKUMURA, Takeshi; TAKIGUCHI, Tetsuya; ARIKI, Yasuo. Hierarchical sparse representation for object recognition. Transactions on Engineering and Computing Sciences, [S. l.], v. 2, n. 1, p. Page:46–60, 2014. DOI: 10.14738/tmlai.21.95. Disponível em: https://scholarpublishing.org/journals/index.php/TECS/article/view/2346. Acesso em: 6 may. 2026.