<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Forward-backward truncated Newton methods for convex composite optimization"^^ . "This paper proposes two proximal Newton-CG methods for convex nonsmooth optimization problems in composite form. The algorithms are based on a a reformulation of the original nonsmooth problem as the unconstrained minimization of a continuously differentiable function, namely the forward-backward envelope (FBE). The first algorithm is based on a standard line search strategy, whereas the second one combines the global efficiency estimates of the corresponding first-order methods, while achieving fast asymptotic convergence rates. Furthermore, they are computationally attractive since each Newton iteration requires the approximate solution of a linear system of usually small dimension. "^^ . "2014" . " " . . "ArXiv"^^ . . . . . . . . . . . . . "Lorenzo"^^ . "Stella"^^ . "Lorenzo Stella"^^ . . "Panagiotis"^^ . "Patrinos"^^ . "Panagiotis Patrinos"^^ . . "Alberto"^^ . "Bemporad"^^ . "Alberto Bemporad"^^ . . . . . "HTML Summary of #2225 \n\nForward-backward truncated Newton methods for convex composite optimization\n\n" . "text/html" . . . "QA75 Electronic computers. Computer science"@en . .