A branch-and-bound optimization algorithm for U-shaped cost functions on Boolean lattices. - Marcelo Ris; Junior Barrera (ISMM (2), 2007)

A branch-and-bound feature selection algorithm for U-shaped cost functions - Marcelo Ris; Junior Barrera; David Correa Martins Jr. (CoRR, 2008)

U-curve: A branch-and-bound optimization algorithm for U-shaped cost functions on Boolean lattices applied to the feature selection problem. - Marcelo Ris; Junior Barrera; David Correa Martins Jr. (Pattern Recognit., 2010)