Maintainer: Ivan Bezerra Allaman <iballaman@uesc.br>

Authors@R: c(person("Antonio", "Coppola", role = c("aut", "cre", "cph"), email = "acoppola@college.harvard.edu"),
person("Brandon", "Stewart", role = c("aut", "cph")),
person("Naoaki", "Okazaki", role = c("aut", "cph")),
person("David", "Ardia", role = c("ctb", "cph")),
person("Dirk", "Eddelbuettel", role = c("ctb", "cph")),
person("Katharine", "Mullen", role = c("ctb", "cph")),
person("Jorge", "Nocedal", role = c("ctb", "cph")))
Description: A wrapper built around the libLBFGS optimization library by Naoaki Okazaki. The lbfgs package implements both the Limited-memory Broyden-Fletcher-Goldfarb-Shanno (L-BFGS) and the Orthant-Wise Quasi-Newton Limited-Memory (OWL-QN) optimization algorithms. The L-BFGS algorithm solves the problem of minimizing an objective, given its gradient, by iteratively computing approximations of the inverse Hessian matrix. The OWL-QN algorithm finds the optimum of an objective plus the L1-norm of the problem's parameters. The package offers a fast and memory-efficient implementation of these optimization routines, which is particularly suited for high-dimensional problems.
Author: Antonio Coppola [aut, cre, cph],

Authors@R: c(person("Antonio", "Coppola", role = c("aut", "cre", "cph"), email = "acoppola@stanford.edu"),

Title: Limited Memory BFGS Minimizer with Bounds on Parameters
c("aut", "cre"), email = "nashjc@uottawa.ca"),
person(given = "Ciyou", family = "Zhu", role = "aut"),
person(given = "Richard", family = "Byrd", role = "aut"),
person(given = "Jorge", family = "Nocedal", role = "aut"),
person(given = c("Jose", "Luis"), family = "Morales", role = "aut"),
person("Brett W.", "Averick", role = "ctb", comment = "dnrm2"),
person("Jack", "Dongarra", role = "ctb", comment = "daxpy dcopy ddot dscal"),
person("Cleve", "Moler", role = "ctb", comment = "dpofa"),
person("G. W.", "Stewart", role = "ctb", comment = "dtrsl"))
Description: Interfacing to Nocedal et al. L-BFGS-B.3.0 (2011) limited
memory BFGS minimizer with bounds on parameters.
Jack Dongarra [ctb] (daxpy dcopy ddot dscal),