Wed.1 11:30–12:45

11:30
11:55
12:20
H 3004 | APP Structural Design Optimization (1/2)
Jacek Gondzio
Alexander Brune
Tamás Terlaky
11:30 Jacek Gondzio

Computational Challenges in Structural Optimization

11:55 Alexander Brune

Modified Barrier Multigrid Methods for Topology Optimization

12:20 Tamás Terlaky

Truss topology design and sizing optimization with kinematic stability

H 3025 | APP Mathematical Optimization in Signal Processing (1/2)
Sergiy A. Vorobyov
Yang Yang
Bo Jiang
11:30 Sergiy A. Vorobyov

Accelerated majorization based optimization for large-scale signal processing: Some new theoretical concepts and applications

11:55 Yang Yang

Parallel best-response algorithms for nonsmooth nonconvex optimization with applications in matrix factorization and network anomaly detection

12:20 Bo Jiang

Vector Transport-Free SVRG with General Retraction for Riemannian Optimization: Complexity Analysis and Practical Implementation

H 0104 | BIG Distributed Algorithms for Constrained Nonconvex Optimization: Clustering, Network Flows, and Two-Level Algorithms
Kaizhao Sun
Tsung-Hui Chang
Tao Jiang
11:30 Kaizhao Sun

A two-level distributed algorithm for constrained nonconvex programs with global convergence

11:55 Tsung-Hui Chang

Large-Scale Clustering by Distributed Orthogonally Constrained NMF Model

12:20 Tao Jiang

Recovery of a mixture of Gaussians by sum-of-norms clustering

H 0110 | BIG Modern Optimization Methods in Machine Learning
Chengjing Wang
Peipei Tang
Qingna Li
11:30 Chengjing Wang

A sparse semismooth Newton based proximal majorization-minimization algorithm for nonconvex square-root-loss regression problems

11:55 Peipei Tang

A semismooth Newton based augmented Lagrangian method for solving the support vector machine problems

12:20 Qingna Li

A Semismooth Newton Method for Support Vector Classification and Regression

H 3008 | VIS Complementarity and Variational Inequalities – Contributed Session
Gayatri Pany
Pankaj Gautam
Felipe Lara
11:30 Gayatri Pany

A variational inequality approach to model green transport network

11:55 Pankaj Gautam

Common zero of lower semicontinuous function and monotone operator

12:20 Felipe Lara

Existence results for equilibrium problems and mixed variational inequalities

H 3013 | VIS Semismoothness for Set-Valued Mappings and Newton Method (2/2)
Martin Brokate
Nico Strasdat
Anna Walter
11:30 Martin Brokate

Sensitivity of rate-independent evolutions

11:55 Nico Strasdat

A Newton-type method for the solution of complementarity problems

12:20 Anna Walter

Numerical Solution Strategies for the Elastoplasticity Problem with Finite Deformations

H 0107 | CON Semidefinite Approaches to Combinatorial Optimization
Hao Hu
Christian Truden
Daniel Brosch
11:30 Hao Hu

Combining symmetry reduction and facial reduction for semidefinite programming

11:55 Christian Truden

Lower Bounds for the Bandwidth Problem

12:20 Daniel Brosch

A new look at symmetry reduction of semidefinite relaxations of the quadratic assignment problem

H 2032 | CON Polynomial Optimization (1/2)
Oguzhan Yuruk
João Gouveia
Grigoriy Blekherman
11:30 Oguzhan Yuruk

An analysis of multistationarity in n-site phosphorylation cycle using circuit polynomials

11:55 João Gouveia

Matrices of bounded factor width and sums of $k$-nomial squares

12:20 Grigoriy Blekherman

Symmetry and Nonnegativity

H 1028 | CNV New Frontiers in Splitting Algorithms for Optimization and Monotone Inclusions (1/3)
Bang Cong Vu
Saverio Salzo
Patrick L. Combettes
11:30 Bang Cong Vu

A splitting method for three operators involving Lipschitzian operators

11:55 Saverio Salzo

Parallel random block-coordinate forward-backward algorithm: A complete convergence analysis

12:20 Patrick L. Combettes

A general Bregman-based splitting scheme for monotone inclusions

H 1058 | CNV Convex and Nonsmooth Optimization – Contributed Session 1/3
Igor Konnov
Ali Dorostkar
Vladimir Shikhman
11:30 Igor Konnov

Gradient Methods with Regularization for Optimization Problems in Hilbert spaces

11:55 Ali Dorostkar

An Introduction to Fractional Dimensional Optimization Problem

12:20 Vladimir Shikhman

Discrete choice prox-functions on the simplex

H 2033 | DER Emerging Trends in Derivative-Free Optimization (2/3)
Anne Auger
Ludovic Salomon
Ana Luisa Custodio
11:30 Anne Auger

COMO-CMA-ES: a linearly convergent derivative free multi-objective solver

11:55 Ludovic Salomon

MADMS: Mesh adaptive direct multisearch for blackbox constrained multiobjective optimization

12:20 Ana Luisa Custodio

On the use of quadratic polynomial models in multiobjective directional direct search

H 3002 | MUL Algorithmic Approaches to Multi-Objective Optimization
Yousuke Araya
Christian Günther
Stefan Banholzer
11:30 Yousuke Araya

Nonlinear scalarizations in set optimization problems

11:55 Christian Günther

Relationships between Clarke-Ye type penalization and vectorial penalization in multi-objective optimization

12:20 Stefan Banholzer

Convex Multiobjective Optimization by the Reference Point Method

H 0105 | NON Geometry in Non-Convex Optimization (1/2)
Suvrit Sra
Nick Vannieuwenhoven
Nicolas Boumal
11:30 Suvrit Sra

Riemannian optimization for some problems in probability and statistics

11:55 Nick Vannieuwenhoven

Riemannian optimization for computing canonical polyadic decompositions

12:20 Nicolas Boumal

Complexity of optimization on manifolds, and cubic regularization

H 1012 | NON Nonlinear Optimization Methods and Their Global Rates of Convergence
Oliver Hinder
Philippe L. Toint
Ernesto G. Birgin
11:30 Oliver Hinder

The complexity of finding stationary points of nonconvex functions

11:55 Philippe L. Toint

Recent results in worst-case evaluation complexity for smooth and non-smooth, exact and inexact, nonconvex optimization

12:20 Ernesto G. Birgin

A Newton-like method with mixed factorizations and cubic regularization and its usage in an Augmented Lagrangian framework

H 1029 | NON Practical Aspects of Nonlinear Optimization
Hiroshige Dan
Michael Feldmeier
Tim Mitchell
11:30 Hiroshige Dan

Automatic Differentiation Software for Large-scale Nonlinear Optimization Problems

11:55 Michael Feldmeier

structure detection in generic quadratic programming

12:20 Tim Mitchell

Relative Minimization Profiles: A Different Perspective for Benchmarking Optimization and Other Numerical Software

H 2013 | NON New Trends in Optimization Methods and Machine Learning (1/3)
Vyacheslav Kungurtsev
El houcine Bergou
Xin Li
11:30 Vyacheslav Kungurtsev

A Subsampling Line-Search Method with Second-Order Results

11:55 El houcine Bergou

Stochastic Three Points Method for Unconstrained Smooth Minimization

12:20 Xin Li

Remarks on a Greedy Randomized Kaczmarz Algorithm

H 2053 | NON Efficient Numerical Solution of Nonconvex Problems
Serge Gratton
Selime Gurol
Elisa Riccietti
11:30 Serge Gratton

Minimization of nonsmooth nonconvex functions using inexact evaluations and its worst-case complexity

11:55 Selime Gurol

Preconditioning of the L-BFGS-B algorithm for aerodynamic shape design

12:20 Elisa Riccietti

Multilevel optimization methods for the training of artificial neural networks

H 0106 | PDE Optimal Control of Nonsmooth Systems (1/3)
Daniel Walter
Lukas Hertlein
Sebastian Engel
11:30 Daniel Walter

Accelerated generalized conditional gradient methods

11:55 Lukas Hertlein

Optimal control of elliptic variational inequalities using bundle methods in Hilbert space

12:20 Sebastian Engel

Variational discretization for an optimal control problem governed by the wave equation with time depending BV controls

H 0111 | PDE Optimal Control and Dynamical Systems (5/7)
Franco Rampazzo
Peter Wolenski
Piernicola Bettiol
11:30 Franco Rampazzo

Infimum gap phenomena, set separation, and abnormality.

11:55 Peter Wolenski

Optimality conditions for systems with piecewise constant dynamics

12:20 Piernicola Bettiol

Some regularity results for minimizers in dynamic optimization

H 0112 | PDE Fractional/Nonlocal PDEs: Applications, Control, and Beyond (2/2)
Deepanshu Verma
Benjamin Manfred Horn
11:30 Deepanshu Verma

External optimal control of fractional parabolic PDEs

11:55 Benjamin Manfred Horn

A Bundle Trust-Region Method for Constrained Nonsmooth Problems applied to a Shape Optimization for Frictional Contact Problems

12:20

H 3006 | ROB Statistical Methods for Optimization Under Uncertainty
Fengpei Li
Huajie Qian
Yuanlu Bai
11:30 Fengpei Li

Parametric Scenario Optimization under Limited Data: A Distributionally Robust Optimization View

11:55 Huajie Qian

Statistical calibration for robust optimization

12:20 Yuanlu Bai

Extreme Event Estimation via Distributionally Robust Optimization

H 3007 | ROB Recent Development in Applications of Distributionally Robust Optimization
Zhenzhen Yan
Guanglin Xu [cancelled]
Yini Gao
11:30 Zhenzhen Yan

Data Driven Approach for Full Cut Promotion in E-commerce

11:55 Guanglin Xu [cancelled]

Data-Driven Distributionally Robust Appointment Scheduling

12:20 Yini Gao

Disaster Relief Resource Preposition and Redeployment Facing the Adversarial Nature

H 2038 | SPA Complexity of Sparse Optimization for Subspace Identification
Guillaume Garrigos
Yifan Sun
Julien Mairal
11:30 Guillaume Garrigos

Model Consistency for Learning with low-complexity priors

11:55 Yifan Sun

Are we there yet? Manifold identification of gradient-related proximal methods

12:20 Julien Mairal

Estimate Sequences for Stochastic Composite Optimization: Variance Reduction, Acceleration, and Robustness to Noise

H 3012 | STO Stochastic Optimization and Its Applications (1/3)
Xiaojun Chen
Jianming Shi
Fengmin Xu
11:30 Xiaojun Chen

Two-stage stochastic variational inequalities and non-cooperative games

11:55 Jianming Shi

A Facet Pivoting Algorithm for Solving Linear Programming with Box Constraints

12:20 Fengmin Xu

Worst-case CVaR portfolio rebalancing with cardinality and diversification constraints