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Computing Modified Newton Directions Using a Partial Cholesky Factorization

Computing Modified Newton Directions Using a Partial Cholesky Factorization

The effectiveness of Newton’s method for finding an unconstrained minimizer of a strictly convex twice continuously differentiable function has prompted the proposal of various modified Newton methods for the nonconvex case. Linesearch modified Newton methods utilize a linear combination of a descent direction and a direction of negative curvature. If …