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91.
Convergence rate analysis of iteractive algorithms for solving variational inequality problems 总被引:3,自引:0,他引:3
M.V. Solodov 《Mathematical Programming》2003,96(3):513-528
We present a unified convergence rate analysis of iterative methods for solving the variational inequality problem. Our results
are based on certain error bounds; they subsume and extend the linear and sublinear rates of convergence established in several
previous studies. We also derive a new error bound for $\gamma$-strictly monotone variational inequalities. The class of algorithms
covered by our analysis in fairly broad. It includes some classical methods for variational inequalities, e.g., the extragradient,
matrix splitting, and proximal point methods. For these methods, our analysis gives estimates not only for linear convergence
(which had been studied extensively), but also sublinear, depending on the properties of the solution. In addition, our framework
includes a number of algorithms to which previous studies are not applicable, such as the infeasible projection methods, a
separation-projection method, (inexact) hybrid proximal point methods, and some splitting techniques. Finally, our analysis
covers certain feasible descent methods of optimization, for which similar convergence rate estimates have been recently obtained
by Luo [14].
Received: April 17, 2001 / Accepted: December 10, 2002
Published online: April 10, 2003
RID="⋆"
ID="⋆" Research of the author is partially supported by CNPq Grant 200734/95–6, by PRONEX-Optimization, and by FAPERJ.
Key Words. Variational inequality – error bound – rate of convergence
Mathematics Subject Classification (2000): 90C30, 90C33, 65K05 相似文献
92.
Brown HN Bunce G Carey RM Cushman P Danby GT Debevec PT Deile M Deng H Deninger W Dhawan SK Druzhinin VP Duong L Efstathiadis E Farley FJ Fedotovich GV Giron S Gray F Grigoriev D Grosse-Perdekamp M Grossmann A Hare MF Hertzog DW Hughes VW Iwasaki M Jungmann K Kawall D Kawamura M Khazin BI Kindem J Krienen F Kronkvist I Larsen R Lee YY Logashenko I McNabb R Meng W Mi J Miller JP Morse WM Nikas D Onderwater CJ Orlov Y Ozben CS Paley JM Polly C Pretz J Prigl R zu Putlitz G Redin SI Rind O 《Physical review letters》2001,86(11):2227-2231
A precise measurement of the anomalous g value, a(mu) = (g-2)/2, for the positive muon has been made at the Brookhaven Alternating Gradient Synchrotron. The result a(mu+) = 11 659 202(14) (6) x 10(-10) (1.3 ppm) is in good agreement with previous measurements and has an error one third that of the combined previous data. The current theoretical value from the standard model is a(mu)(SM) = 11 659 159.6(6.7) x 10(-10) (0.57 ppm) and a(mu)(exp) - a(mu)(SM) = 43(16) x 10(-10) in which a(mu)(exp) is the world average experimental value. 相似文献
93.
94.
V.E. Zuev V.P. Lopasov L.N. Sinitsa A.M. Solodov 《Journal of Molecular Spectroscopy》1982,94(1):208-210
The acetylene absorption spectrum in the Nd-laser range 9240–9520 cm?1 has been recorded earlier (1), using a highly sensitive intracavity laser spectrometer. Two weak absorption perpendicular bands 2100011 ← 0000000 (ν0 = 9366.6 cm?1) and 1200°31 ← 0000°0° (ν0 = 9407.7 cm?1) were studied and spectroscopic constants were obtained. However, the structure of the Q branches of these bands with J < 7 was unresolved because the resolution of the spectrometer was not very high. 相似文献
95.
M.V. Solodov 《Computational Optimization and Applications》1998,11(1):23-35
We consider the class of incremental gradient methods for minimizing a sum of continuously differentiable functions. An important novel feature of our analysis is that the stepsizes are kept bounded away from zero. We derive the first convergence results of any kind for this computationally important case. In particular, we show that a certain -approximate solution can be obtained and establish the linear dependence of on the stepsize limit. Incremental gradient methods are particularly well-suited for large neural network training problems where obtaining an approximate solution is typically sufficient and is often preferable to computing an exact solution. Thus, in the context of neural networks, the approach presented here is related to the principle of tolerant training. Our results justify numerous stepsize rules that were derived on the basis of extensive numerical experimentation but for which no theoretical analysis was previously available. In addition, convergence to (exact) stationary points is established when the gradient satisfies a certain growth property. 相似文献
96.
97.
A. A. Solodov T. M. Petrova Yu. N. Ponomarev A. M. Solodov A. F. Danilyuk 《Molecular physics》2019,117(1):67-70
The absorption spectra of carbon monoxide confined in three aerogel samples with different pore sizes have been recorded within the 4100–4400?cm-1 spectral region at room temperature. The measurements were made using a Bruker IFS 125HR Fourier-transform infrared spectrometer. Lineshift and half-width values for CO were obtained. The influence of pore sizes on dependence of CO line half-width values on rotational quantum numbers was studied. 相似文献
98.
V. M. Aul’chenko R. R. Akhmetshin B. Sh. Banzarov L. M. Barkov N. S. Bashtovoi A. E. Bondar’ A. V. Bragin A. A. Grebenyuk D. N. Grigor’ev D. A. Epifanov A. S. Zaitsev F. V. Ignatov V. F. Kazanin S. V. Karpov I. A. Koop P. P. Krokovny A. S. Kuz’min I. B. Logashenko P. A. Lukin K. Yu. Mikhailov I. N. Nesterenko A. V. Otboev V. S. Okhapkin E. A. Perevedentsev A. S. Popov S. I. Redin A. A. Ruban N. M. Ryskulov A. L. Sibidanov V. P. Smakhtin I. G. Snopkov E. P. Solodov G. V. Fedotovich B. I. Khazin Yu. M. Shatunov B. A. Shvarts S. I. Eidel’man Yu. V. Yudin 《JETP Letters》2008,88(2):85-90
The ? → π+π?γγ and ? → π+π?η decays are sought in the experimental data obtained with the CMD-2 detector in the region of the ?-meson resonance. Upper limits ?(? → ππγγ)< 1.2 × 10?4 and ?(? → ππη) < 6.1 × 10?5 (both at a C.L. of 90%) are determined for the branching ratios of these decays. 相似文献
99.
We obtain local estimates of the distance to a set defined by equality constraints under assumptions which are weaker than
those previously used in the literature. Specifically, we assume that the constraints mapping has a Lipschitzian derivative,
and satisfies a certain 2-regularity condition at the point under consideration. This setting directly subsumes the classical
regular case and the twice differentiable 2-regular case, for which error bounds are known, but it is significantly richer
than either of these two cases. When applied to a certain equation-based reformulation of the nonlinear complementarity problem,
our results yield an error bound under an assumption more general than b-regularity. The latter appears to be the weakest assumption under which a local error bound for complementarity problems
was previously available. We also discuss an application of our results to the convergence rate analysis of the exterior penalty
method for solving irregular problems.
Received: February 2000 / Accepted: November 2000?Published online January 17, 2001 相似文献
100.
Mathematical Programming - We present an approach to regularize and approximate solution mappings of parametric convex optimization problems that combines interior penalty (log-barrier) solutions... 相似文献