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math.OC2009
An ellipsoidal branch and bound algorithm for global optimization
William Hager, Dzung Phan
A branch and bound algorithm is developed for global optimization. Branching in the algorithm is accomplished by subdividing the feasible set using ellipses. Lower bounds are obtai…
math.OC2009
Gradient-based methods for sparse recovery
William Hager, Dzung Phan, Hongchao Zhang
The convergence rate is analyzed for the SpaSRA algorithm (Sparse Reconstruction by Separable Approximation) for minimizing a sum $f (\m{x}) + ψ(\m{x})$ where is smooth and …