نتایج جستجو برای: interior point algorithm

تعداد نتایج: 1242974  

Journal: : 2021

Abstract We study a predictor-corrector interior-point algorithm for solving general linear complementarity problems from the implementation point of view. analyze method proposed by Illés, Nagy and Terlaky [1] that extends published Potra Liu [2] to problems. A new determining step size corrector direction is presented. Using code implemented in C++ programming language, we can solve large-sca...

Journal: :Math. Program. 1998
Nimrod Megiddo Shinji Mizuno Takashi Tsuchiya

The layered-step interior-point algorithm was introduced by Vavasis and Ye. The algorithm accelerates the path following interior-point algorithm and its arithmetic complexity depends only on the coefficient matrix A . The main drawback of the algorithm is the use of an unknown big constant x, in computing the search direction and to initiate the algorithm. We propose a modified layered-step in...

2014
B Kheirfam

A novel primal-dual path-following interior-point algorithm for the Cartesian P∗(κ)-linear complementarity problem over symmetric cones is presented. The algorithm is based on a reformulation of the central path for finding the search directions. For a full Nesterov-Todd step feasible interior-point algorithm based on the new search directions, the complexity bound of the algorithm with small-u...

Journal: :Math. Oper. Res. 1995
Donald Goldfarb Dong X. Shaw

In this paper we present a generic projective interior point algorithm for linear programming which includes modiied versions of Karmarkar's original algorithm and most other projective algorithms that have been proposed as special cases. We show that this class of algorithms has a worst case iteration bound of O(p nL) and is closely related to the class of potential reduction interior point me...

2009
Chee-Khian Sim

Interior point method (IPM) defines a search direction at each interior point of a region. These search directions form a direction field which in turn gives rise to a system of ordinary differential equations (ODEs). The solutions of the system of ODEs can be viewed as underlying paths in the interior of the region. In [31], these off-central paths are shown to be well-defined analytic curves ...

Journal: :SIAM Journal on Optimization 2011
Chee-Khian Sim

An interior point method (IPM) defines a search direction at each interior point of a region. These search directions form a direction field which in turn gives rise to a system of ordinary differential equations (ODEs). The solutions of the system of ODEs can be viewed as underlying paths in the interior of the region. In [C.-K. Sim and G. Zhao, Math. Program. Ser. A, 110 (2007), pp. 475–499],...

Journal: :Neural networks : the official journal of the International Neural Network Society 1998
Peter T. Szymanski Michael D. Lemmon Christopher J. Bett

Modular neural networks use a single gating neuron to select the outputs of a collection of agent neurons. Expectation-maximization (EM) algorithms provide one way of training modular neural networks to approximate non-linear functionals. This paper introduces a hybrid interior-point (HIP) algorithm for training modular networks. The HIP algorithm combines an interior-point linear programming (...

Journal: :Math. Program. 2015
Wei Bian Xiaojun Chen Yinyu Ye

We propose a first order interior point algorithm for a class of nonLipschitz and nonconvex minimization problems with box constraints, which arise from applications in variable selection and regularized optimization. The objective functions of these problems are continuously differentiable typically at interior points of the feasible set. Our first order algorithm is easy to implement and the ...

2009
Margarida Fonseca José Rui Figueira Mauricio G. C. Resende

In this paper we present a primal-dual interior-point algorithm to solve a class of multi-objective network flow problems. More precisely, our algorithm is an extension of the single-objective primal-dual infeasible and inexact interior point method for multi-objective linear network flow problems. A comparison with standard interior point methods is provided and experimental results on bi-obje...

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