Articles with "point algorithm" as a keyword



The generalized proximal point algorithm with step size 2 is not necessarily convergent

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Published in 2018 at "Computational Optimization and Applications"

DOI: 10.1007/s10589-018-9992-3

Abstract: The proximal point algorithm (PPA) is a fundamental method in optimization and it has been well studied in the literature. Recently a generalized version of the PPA with a step size in (0, 2) has been… read more here.

Keywords: step size; step; proximal point; point algorithm ... See more keywords
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A Proximal Point Algorithm Revisited and Extended

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Published in 2019 at "Journal of Optimization Theory and Applications"

DOI: 10.1007/s10957-019-01536-5

Abstract: This note is a reaction to the recent paper by Rouhani and Moradi (J Optim Theory Appl 172:222–235, 2017), where a proximal point algorithm proposed by Boikanyo and Moroşanu (Optim Lett 7:415–420, 2013) is discussed.… read more here.

Keywords: algorithm; algorithm revisited; point algorithm; proximal point ... See more keywords

Interior-point algorithm for sufficient LCPs based on the technique of algebraically equivalent transformation

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Published in 2021 at "Optimization Letters"

DOI: 10.1007/s11590-020-01612-0

Abstract: We present a short-step interior-point algorithm (IPA) for sufficient linear complementarity problems (LCPs) based on a new search direction. An algebraic equivalent transformation (AET) is used on the centrality equation of the central path system… read more here.

Keywords: technique; point algorithm; interior point; sufficient lcps ... See more keywords

An interior-point algorithm for $$P_*(\kappa )$$P∗(κ)-LCP based on a new trigonometric kernel function with a double barrier term

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Published in 2017 at "Journal of Applied Mathematics and Computing"

DOI: 10.1007/s12190-015-0978-3

Abstract: In this paper, we present a new large-update interior-point algorithm for $$P_*(\kappa )$$P∗(κ)-linear complementarity problem. The new algorithm is based on a trigonometric kernel function which differs from the existing kernel functions in which it… read more here.

Keywords: algorithm; algorithm kappa; point algorithm; interior point ... See more keywords

The generalized contraction proximal point algorithm with square-summable errors

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Published in 2017 at "Afrika Matematika"

DOI: 10.1007/s13370-016-0453-9

Abstract: Let $$(x_n)$$(xn) be a sequence generated by $$x_{n+1}=\alpha _nu+\gamma _nx_n+\delta _nJ_{\beta _n}x_n+e_n$$xn+1=αnu+γnxn+δnJβnxn+en for $$n\ge 0$$n≥0, where $$J_{\beta _n}$$Jβn is the resolvent of a maximal monotone operator A with $$\beta _n\in (0,\infty )$$βn∈(0,∞), $$u,x_0\in H$$u,x0∈H, $$(e_n)$$(en)… read more here.

Keywords: point algorithm; proximal point; beta; generalized contraction ... See more keywords

On the Convergence Rate of an Inexact Proximal Point Algorithm for Quasiconvex Minimization on Hadamard Manifolds

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Published in 2017 at "Journal of the Operations Research Society of China"

DOI: 10.1007/s40305-016-0129-z

Abstract: In this paper, we present an analysis about the rate of convergence of an inexact proximal point algorithm to solve minimization problems for quasiconvex objective functions on Hadamard manifolds. We prove that under natural assumptions… read more here.

Keywords: point algorithm; hadamard manifolds; proximal point; point ... See more keywords

On the Convergence Rate of a Proximal Point Algorithm for Vector Function on Hadamard Manifolds

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Published in 2017 at "Journal of the Operations Research Society of China"

DOI: 10.1007/s40305-016-0146-y

Abstract: The proximal point algorithm has many interesting applications, such as signal recovery, signal processing and others. In recent years, the proximal point method has been extended to Riemannian manifolds. The main advantages of these extensions… read more here.

Keywords: point; proximal point; vector function; point algorithm ... See more keywords

A Wide-Neighborhood Predictor-Corrector Interior-Point Algorithm for Linear Complementarity Problems

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Published in 2018 at "Journal of the Operations Research Society of China"

DOI: 10.1007/s40305-017-0178-y

Abstract: In this paper, a wide-neighborhood predictor-corrector feasible interior-point algorithm for linear complementarity problems is proposed. The algorithm is based on using the classical affine scaling direction as a part in a corrector step, not in… read more here.

Keywords: predictor corrector; point algorithm; interior point; wide neighborhood ... See more keywords

A wide neighborhood interior-point algorithm with arc-search for P⁎(κ) linear complementarity problem

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Published in 2019 at "Applied Numerical Mathematics"

DOI: 10.1016/j.apnum.2018.11.001

Abstract: Abstract We propose a wide neighborhood interior-point algorithm with arc-search for P ⁎ ( κ ) linear complementarity problem (LCP). Along the ellipsoidal approximation of the central path, the algorithm searches optimizers in every iteration.… read more here.

Keywords: wide neighborhood; point; algorithm; interior point ... See more keywords

A CORRECTOR-PREDICTOR ARC SEARCH INTERIOR-POINT ALGORITHM FOR SYMMETRIC OPTIMIZATION

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Published in 2018 at "Acta Mathematica Scientia"

DOI: 10.1016/s0252-9602(18)30813-0

Abstract: Abstract In this paper, a corrector-predictor interior-point algorithm is proposed for symmetric optimization. The algorithm approximates the central path by an ellipse, follows the ellipsoidal approximation of the central-path step by step and generates a… read more here.

Keywords: search; symmetric optimization; corrector predictor; interior point ... See more keywords

A Full-Newton Step Feasible Interior-Point Algorithm for the Special Weighted Linear Complementarity Problems Based on a Kernel Function

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Published in 2024 at "Wuhan University Journal of Natural Sciences"

DOI: 10.1051/wujns/2024291029

Abstract: In this paper, a new full-Newton step primal-dual interior-point algorithm for solving the special weighted linear complementarity problem is designed and analyzed. The algorithm employs a kernel function with a linear growth term to derive… read more here.

Keywords: interior point; point algorithm; point; full newton ... See more keywords