期刊
MATHEMATICAL PROGRAMMING
卷 87, 期 2, 页码 303-316出版社
SPRINGER VERLAG
DOI: 10.1007/s101070050116
关键词
nonlinear programming; interior-point methods; nonconvex optimization; predictor-corrector; matrix ordering
The paper extends prior work by the authors on LUQO, an interior point algorithm for nonconvex nonlinear programming. The specific topics covered include primal versus dual orderings and higher order methods, which attempt to use each factorization of the Hessian matrix more than once to improve computational efficiency. Results show that unlike linear and convex quadratic programming, higher order corrections to the central trajectory are not useful for nonconvex nonlinear programming, but that a variant of Mehrotra's predictor-corrector algorithm can definitely improve performance.
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