Results 51 to 60 of about 22,536 (196)
Mathematics, 2019 In a real Hilbert space, we denote CFPP and VIP as common fixed point problem of finitely many strict pseudocontractions and a variational inequality problem for Lipschitzian, pseudomonotone operator, respectively. This paper is devoted to explore how to
Lu-Chuan Ceng +2 more
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A Family of Multi-Step Subgradient Minimization Methods
Mathematics, 2023 For solving non-smooth multidimensional optimization problems, we present a family of relaxation subgradient methods (RSMs) with a built-in algorithm for finding the descent direction that forms an acute angle with all subgradients in the neighborhood of
Elena Tovbis +5 more
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Estimating Plant Species Richness With Sentinel and Landsat Data Across Ecosystems in China
Ecology and Evolution, Volume 16, Issue 3, March 2026.438 field plots were used to estimate plant diversity across ecosystems; 18 spectral indices were derived from Sentinel and Landsat data; EVI, DVI, PSRI, NDVI, PRI, GNDVI, and GMEVI were identified as powerful indicators for predicting plant alpha diversity.
Keman Wang +4 more
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A trust region method using subgradient for minimizing a nondifferentiable function [PDF]
Yugoslav Journal of Operations Research, 2009 The minimization of a particular nondifferentiable function is considered. The first and second order necessary conditions are given. A trust region method for minimization of this form of the objective function is presented.
Gardašević-Filipović Milanka
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Subgradient Sampling for Nonsmooth Nonconvex Minimization
SIAM Journal on Optimization, 2023 Risk minimization for nonsmooth nonconvex problems naturally leads to first-order sampling or, by an abuse of terminology, to stochastic subgradient descent. We establish the convergence of this method in the path-differentiable case and describe more precise results under additional geometric assumptions.
Bolte, Jérôme +2 more
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Dimer models and conformal structures
Communications on Pure and Applied Mathematics, Volume 79, Issue 2, Page 340-446, February 2026.Abstract Dimer models have been the focus of intense research efforts over the last years. Our paper grew out of an effort to develop new methods to study minimizers or the asymptotic height functions of general dimer models and the geometry of their frozen boundaries.
Kari Astala +3 more
wiley +1 more source
Distributed optimization over time-varying directed graphs
, 2014 We consider distributed optimization by a collection of nodes, each having access to its own convex function, whose collective goal is to minimize the sum of the functions.
Nedic, Angelia, Olshevsky, Alex
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Statistics in Medicine, Volume 45, Issue 3-5, February 2026.ABSTRACT Causal inference has gained extensive attention in various fields, including healthcare, epidemiology, and social sciences. While many methods have been developed, most research has been directed to handle data with a univariate response variable.
Pingbo Hu, Grace Y. Yi
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Differentially Private Convex Optimization with Piecewise Affine Objectives
, 2014 Differential privacy is a recently proposed notion of privacy that provides strong privacy guarantees without any assumptions on the adversary. The paper studies the problem of computing a differentially private solution to convex optimization problems ...
Han, Shuo +2 more
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Can tropical cyclones exist near the Equator?
Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 774, January 2026 Part A.Schematic showing how a developed TC responds to reduced Coriolis parameter (f). Zero‐f lowers inertial stability and increases agradient force, enhancing radial inflow at lower levels. Stronger inflow deepens the inflow layer and promotes convergence, intensifying convection and downdrafts in outer rainbands.
Min Li, Ralf Toumi
wiley +1 more source