Smoothing methods for nonsmooth, nonconvex minimization

X Chen - Mathematical programming, 2012 - Springer
We consider a class of smoothing methods for minimization problems where the feasible set
is convex but the objective function is not convex, not differentiable and perhaps not even …

Stochastic approximation approaches to the stochastic variational inequality problem

H Jiang, H Xu - IEEE Transactions on Automatic Control, 2008 - ieeexplore.ieee.org
Stochastic approximation methods have been extensively studied in the literature for solving
systems of stochastic equations and stochastic optimization problems where function values …

[КНИГА][B] Uncertainty quantification in variational inequalities: theory, numerics, and applications

J Gwinner, B Jadamba, AA Khan, F Raciti - 2021 - taylorfrancis.com
Uncertainty Quantification (UQ) is an emerging and extremely active research discipline
which aims to quantitatively treat any uncertainty in applied models. The primary objective of …

Stochastic variational inequalities: single-stage to multistage

RT Rockafellar, RJB Wets - Mathematical Programming, 2017 - Springer
Variational inequality modeling, analysis and computations are important for many
applications, but much of the subject has been developed in a deterministic setting with no …

Solving monotone stochastic variational inequalities and complementarity problems by progressive hedging

RT Rockafellar, J Sun - Mathematical Programming, 2019 - Springer
The concept of a stochastic variational inequality has recently been articulated in a new way
that is able to cover, in particular, the optimality conditions for a multistage stochastic …

Stochastic variational inequalities: residual minimization smoothing sample average approximations

X Chen, RJB Wets, Y Zhang - SIAM Journal on Optimization, 2012 - SIAM
The stochastic variational inequality (VI) has been used widely in engineering and
economics as an effective mathematical model for a number of equilibrium problems …

Robust solution of monotone stochastic linear complementarity problems

X Chen, C Zhang, M Fukushima - Mathematical Programming, 2009 - Springer
We consider the stochastic linear complementarity problem (SLCP) involving a random
matrix whose expectation matrix is positive semi-definite. We show that the expected …

Robustly learning a single neuron via sharpness

P Wang, N Zarifis, I Diakonikolas… - … on Machine Learning, 2023 - proceedings.mlr.press
We study the problem of learning a single neuron with respect to the $ L_2^ 2$-loss in the
presence of adversarial label noise. We give an efficient algorithm that, for a broad family of …

Discrete approximation of two-stage stochastic and distributionally robust linear complementarity problems

X Chen, H Sun, H Xu - Mathematical Programming, 2019 - Springer
In this paper, we propose a discretization scheme for the two-stage stochastic linear
complementarity problem (LCP) where the underlying random data are continuously …

Robust trajectory optimization over uncertain terrain with stochastic complementarity

L Drnach, Y Zhao - IEEE Robotics and Automation Letters, 2021 - ieeexplore.ieee.org
Trajectory optimization with contact-rich behaviors has recently gained attention for
generating diverse locomotion behaviors without pre-specified ground contact sequences …