subfaces

Noun

subface (plural subfaces)

1. Part of a face
   • At each iteration, our methods first identify a face of an orthant and then either perform an exact line search along the direction of the negative projected minimum-norm subgradient of the objective function or execute a CG subroutine that conducts a sequence of CG iterations until a CG iterate...2015, Zhaosong Lu, Xiaojun Chen, “Generalized Conjugate Gradient Methods for ℓ₁ Regularized Convex Quadratic Programming with Finite Convergence”, in arXiv