Pedrosa, G., 		Oliveira Rezende, S., & 		Traina, A.
(2012).
 Reducing the dimensionality of the SIFT descriptor and increasing its effectiveness and efficiency in image retrieval via bag-of-features.
In <em>Proceedings of the 18th Brazilian Symposium on Multimedia and the Web</em>, (pp. 139-142). Porto Alegre: SBC.