筛选条件 共查询到55条结果
排序方式
Riemannian proximal gradient methods

期刊: MATHEMATICAL PROGRAMMING, ; ()

In the Euclidean setting the proximal gradient method and its accelerated variants are a class of efficient algorithms for optimization problems with ......

A stochastic extra-step quasi-Newton method for nonsmooth nonconvex optimization

期刊: MATHEMATICAL PROGRAMMING, ; ()

In this paper, a novel stochastic extra-step quasi-Newton method is developed to solve a class of nonsmooth nonconvex composite optimization problems.......

Robust spectral risk optimization when the subjective risk aversion is ambiguous: a moment-type approach

期刊: MATHEMATICAL PROGRAMMING, ; ()

Choice of a risk measure for quantifying risk of an investment portfolio depends on the decision maker's risk preference. In this paper, we consider t......

Mathematical programs with complementarity constraints and a non-Lipschitz objective: optimality and approximation

期刊: MATHEMATICAL PROGRAMMING, 2021; 185 (1-2)

We consider a class of mathematical programs with complementarity constraints (MPCC) where the objective function involves a non-Lipschitz sparsity-in......

Multi-marginal maximal monotonicity and convex analysis

期刊: MATHEMATICAL PROGRAMMING, 2021; 185 (1-2)

Monotonicity and convex analysis arise naturally in the framework of multi-marginal optimal transport theory. However, a comprehensive multi-marginal ......

On the equivalence of inexact proximal ALM and ADMM for a class of convex composite programming

期刊: MATHEMATICAL PROGRAMMING, 2021; 185 (1-2)

In this paper, we show that for a class of linearly constrained convex composite optimization problems, an (inexact) symmetric Gauss-Seidel based majo......

A differentiable homotopy method to compute perfect equilibria

期刊: MATHEMATICAL PROGRAMMING, 2021; 185 (1-2)

The notion of perfect equilibrium was formulated by Selten (Int J Game Theory 4(1):25-55, 1975) as a strict refinement of Nash equilibrium. For an ext......

Quantile-based risk sharing with heterogeneous beliefs

期刊: MATHEMATICAL PROGRAMMING, 2020; 181 (2)

We study risk sharing problems with quantile-based risk measures and heterogeneous beliefs, motivated by the use of internal models in finance and ins......

The multiproximal linearization method for convex composite problems

期刊: MATHEMATICAL PROGRAMMING, 2020; 182 (1-2)

Composite minimization involves a collection of smooth functions which are aggregated in a nonsmooth manner. In the convex setting, we design an algor......

Primal-dual optimization algorithms over Riemannian manifolds: an iteration complexity analysis

期刊: MATHEMATICAL PROGRAMMING, 2020; 184 (1-2)

In this paper we study nonconvex and nonsmooth multi-block optimization over Euclidean embedded (smooth) Riemannian submanifolds with coupled linear c......

Applying FISTA to optimization problems (with or) without minimizers

期刊: MATHEMATICAL PROGRAMMING, 2020; 184 (1-2)

Beck and Teboulle's FISTA method for finding a minimizer of the sum of two convex functions, one of which has a Lipschitz continuous gradient whereas ......

Risk minimization, regret minimization and progressive hedging algorithms

期刊: MATHEMATICAL PROGRAMMING, 2020; 181 (2)

This paper begins with a study on the dual representations of risk and regret measures and their impact on modeling multistage decision making under u......

New analysis of linear convergence of gradient-type methods via unifying error bound conditions

期刊: MATHEMATICAL PROGRAMMING, 2020; 180 (1-2)

This paper reveals that a common and central role, played in many error bound (EB) conditions and a variety of gradient-type methods, is a residual me......

Varying confidence levels for CVaR risk measures and minimax limits

期刊: MATHEMATICAL PROGRAMMING, 2020; 180 (1-2)

Conditional value at risk (CVaR) has been widely studied as a risk measure. In this paper we add to this work by focusing on the choice of confidence ......

共55条页码: 1/4页15条/页