Andrea Walther

Q: What Schools Are Affiliated With Andrea Walther

Andrea Walther is affiliated with the following schools: Humboldt University of Berlin, University of Göttingen, University of Regensburg, Paderborn University, Technical University of Munich, University of Bayreuth, University of Bonn, University of Bremen, TU Dresden

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Andrea Walther

Mathematics

#6219

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#8654

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Measure Theory

#2840

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#3378

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Mathematics

Andrea Walther's Degrees

PhD Mathematics University of Bonn
Masters Mathematics University of Bonn
Bachelors Mathematics University of Bonn

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Why Is Andrea Walther Influential?

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According to Wikipedia, Andrea Walther is a German applied mathematician whose research interests include nonlinear optimization, non-smooth optimization, and scientific computing, and who is known in particular for her work on automatic differentiation. She is professor of mathematical optimization in the institute for mathematics of Humboldt University of Berlin.

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Andrea Walther's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

Evaluating derivatives - principles and techniques of algorithmic differentiation, Second Edition (2000) (3007)
Algorithm 799: revolve: an implementation of checkpointing for the reverse or adjoint mode of computational differentiation (2000) (479)
Getting Started with ADOL-C (2009) (237)
On constrained optimization by adjoint based quasi-Newton methods (2002) (92)
Introduction to Automatic Differentiation (2003) (90)
Evaluating higher derivative tensors by forward propagation of univariate Taylor series (2000) (87)
Efficient Computation of Sparse Hessians Using Coloring and Automatic Differentiation (2009) (75)
Automatic differentiation of explicit Runge-Kutta methods for optimal control (2007) (73)
MultiStage Approaches for Optimal Offline Checkpointing (2009) (43)
Evaluating Gradients in Optimal Control: Continuous Adjoints Versus Automatic Differentiation (2004) (43)
Recent Advances in Algorithmic Differentiation (2012) (42)
Automatic Differentiation of an Entire Design Chain for Aerodynamic Shape Optimization (2007) (42)
Program reversal schedules for single and multi-processor machines (1999) (41)
ADOL‐C: Automatic Differentiation Using Operator Overloading in C++ (2003) (39)
Advantages of Binomial Checkpointing for Memory-reduced Adjoint Calculations (2004) (39)
First- and second-order optimality conditions for piecewise smooth objective functions (2016) (39)
New Algorithms for Optimal Online Checkpointing (2010) (38)
An adjoint-based SQP algorithm with quasi-Newton Jacobian updates for inequality constrained optimization (2010) (38)
Computing sparse Hessians with automatic differentiation (2008) (37)
An optimal memory‐reduced procedure for calculating adjoints of the instationary Navier‐Stokes equations (2006) (36)
On the efficient computation of high-order derivatives for implicitly defined functions (2009) (28)
On Lipschitz optimization based on gray-box piecewise linearization (2016) (27)
On the local convergence of adjoint Broyden methods (2009) (27)
Differentiating Fixed Point Iterations with ADOL-C: Gradient Calculation for Fluid Dynamics (2006) (27)
Online Checkpointing for Parallel Adjoint Computation in PDEs: Application to Goal-Oriented Adaptivity and Flow Control (2006) (26)
Parametric sensitivities for optimal control problems using automatic differentiation (2003) (25)
NURBS-based and Parametric-based Shape Optimisation with differentiated CAD Kernel (2017) (24)
Global convergence of quasi-Newton methods based on adjoint Broyden updates (2009) (23)
Algorithmic differentiation of the Open CASCADE Technology CAD kernel and its coupling with an adjoint CFD solver (2018) (23)
Adjoint concepts for the optimal control of Burgers equation (2007) (21)
Exploiting Sparsity in Jacobian Computation via Coloring and Automatic Differentiation: A Case Study in a Simulated Moving Bed Process (2008) (21)
An Inexact Trust-Region Algorithm for the Optimization of Periodic Adsorption Processes (2010) (21)
On the numerical stability of algorithmic differentiation (2012) (21)
An algorithm for nonsmooth optimization by successive piecewise linearization (2019) (20)
Parallel Reverse Mode Automatic Differentiation for OpenMP Programs with ADOL-C (2008) (20)
Relaxing Kink Qualifications and Proving Convergence Rates in Piecewise Smooth Optimization (2019) (19)
Adjoints for Time-Dependent Optimal Control (2008) (18)
Optimal Checkpointing for Time-Stepping Procedures in ADOL-C (2006) (17)
Maintaining factorized KKT systems subject to rank-one updates of Hessians and Jacobians (2007) (17)
High-level python abstractions for optimal checkpointing in inversion problems (2018) (14)
Three-dimensional reconstruction of a comet nucleus by optimal control of Maxwell's equations: A contribution to the experiment CONSERT onboard space craft Rosetta (2010) (14)
OPTIMISATION OF A U-BEND USING A CAD-BASED ADJOINT METHOD WITH DIFFERENTIATED CAD KERNEL (2016) (13)
A First-Order Convergence Analysis of Trust-Region Methods with Inexact Jacobians (2008) (12)
Treeverse: an Implementation of Checkpointing for the Reverse or Adjoint Mode of Computational Diierentiation (1997) (12)
Algorithmic differentiation for piecewise smooth functions: a case study for robust optimization (2018) (11)
Finite convergence of an active signature method to local minima of piecewise linear functions (2018) (10)
An introduction to algorithmic differentiation (2019) (10)
A first-order convergence analysis of trust-region methods with inexact Jacobians and inequality constraints (2012) (10)
Efficient Implementation of Collocation Methods for Optimization using OpenModelica and ADOL-C (2014) (10)
On the Efficient Generation of Taylor Expansions for DAE Solutions by Automatic Differentiation (2004) (10)
The Implementation and Testing of Time-Minimal and Resource-Optimal Parallel Reversal Schedules (2002) (10)
On an inexact trust-region SQP-filter method for constrained nonlinear optimization (2016) (10)
CHARACTERIZING AND TESTING SUBDIFFERENTIAL REGULARITY FOR PIECEWISE SMOOTH OBJECTIVE FUNCTIONS (2017) (9)
Numerical experiments with an inexact Jacobian trust-region algorithm (2011) (9)
Applying the Checkpointing Routine treeverse to Discretizations of Burgers’ Equation* (1999) (9)
A General Algorithm to Calculate the Inverse Principal p-th Root of Symmetric Positive Definite Matrices (2017) (9)
Cad-Based Shape Optimisation Of The Nasa Crm Wing-Body Intersection Using Differentiated Cad Kernel (2017) (9)
Sensitivity analysis of waveguide eigenvalue problems (2011) (7)
On an extension of one-shot methods to incorporate additional constraints (2016) (7)
A usability case study of algorithmic differentiation tools on the ISSM ice sheet model (2018) (7)
Program reversals for evolutions with non-uniform step costs (2004) (7)
Pressure Swing Adsorption Optimization Strategies for CO2 Capture (2015) (7)
New results on program reversals (2000) (7)
Bounding the Number of Processors and Checkpoints Needed in Time-minimal Parallel Reversal Schedules (2004) (6)
Automatic Differentiation of the Open CASCADE Technology CAD System and its coupling with an Adjoint CFD Solver (2017) (6)
Characterizing and Testing Subdifferential Regularity in Piecewise Smooth Optimization (2019) (6)
Increasing the sensitivity of electrical impedance to piezoelectric material parameters with non-uniform electrical excitation (2015) (6)
Towards Matrix‐Free AD‐Based Preconditioning of KKT Systems in PDE‐Constrained Optimization (2005) (5)
Nonsmooth optimization by successive abs-linearization in function spaces (2020) (5)
Application of AD-based Quasi-Newton Methods to Stiff ODEs (2006) (5)
Polyhedral DC Decomposition and DCA Optimization of Piecewise Linear Functions (2020) (5)
Optimal r-order of an adjoint Broyden method without the assumption of linearly independent steps (2008) (5)
On the Efficient Computation of Sparsity Patterns for Hessians (2012) (4)
A Package for the Automatic Differentiation of Algorithms Written in C / C + + Version 2 . 1 . 12-stable , November 2010 (2010) (4)
Optimization of triple-ring electrodes on piezoceramic transducers using algorithmic differentiation (2018) (4)
Efficient aerodynamic shape optimization by structure exploitation (2012) (4)
Multiple vector-Jacobian products are cheap (1999) (4)
Exploiting Sparsity in Automatic Differentiation on Multicore Architectures (2012) (4)
Beyond the Oracle: Opportunities of Piecewise Differentiation (2020) (4)
Optimization of triple-ring electrodes on piezoceramic transducers using algorithmic differentiation (2018) (4)
Parallel Derivative Computation using ADOL-C (2008) (4)
Differentiation methods for industrial strength problems (2000) (4)
An Exploratory Line Search for Piecewise Differentiable Objective Functions based on Algorithmic Differentiation (2012) (3)
Autonomous navigation of ships by combining optimal trajectory planning with informed graph search (2022) (3)
Computation of derivatives for structure preserving optimal control using automatic differentiation (2010) (3)
Adjoint‐based quasi‐Newton methods for partially separable problems (2007) (3)
Structure-Exploiting Automatic Differentiation of Finite Element Discretizations (2008) (3)
Adjoint Calculation Using Time-Minimal Program Reversals for Multi-Processor Machines (2001) (3)
Efficient calculation of sensitivities for optimization problems (2007) (3)
Efficient Numerical Solution of Geometric Inverse Problems Involving Maxwell's Equations Using Shape Derivatives and Automatic Code Generation (2018) (3)
Extending the Binomial Checkpointing Technique for Resilience (2016) (2)
An active signature method for constrained abs-linear minimization (2021) (2)
A Package for the Automatic Differentiation of Algorithms Written in C / C + + Version 2 . 7 . 0-trunk , January 2019 (2019) (2)
Optimal program execution reversal (2000) (2)
An inverse approach to the characterisation of material parameters of piezoelectric discs with triple-ring-electrodes (2018) (2)
A one-shot optimization framework with additional equality constraints applied to multi-objective aerodynamic shape optimization (2018) (2)
An inverse approach to the characterisation of material parameters of piezoelectric discs with triple-ring-electrodes (2018) (2)
Tailoring the high-harmonic emission in two-level systems and semiconductors by pulse shaping (2012) (2)
Computing roots for the modelling of waves in acoustic waveguides (2012) (2)
A sensitivity-based optimisation procedure for the characterisation of piezoelectric discs (2019) (2)
Pressure Swing Adsorption Optimization Strategies for CO 2 Capture (2014) (2)
Towards Adjoint and Directional Derivatives in FMI utilizing ADOL-C within OpenModelica (2017) (2)
Compile-Time Symbolic Differentiation Using C++ Expression Templates (2017) (2)
Reliable computation of roots in analytical waveguide modeling using an interval-newton approach and algorithmic differentiation (2013) (2)
Application of techniques of computational differentiation to a cooling system (2000) (2)
3. Fundamentals of Forward and Reverse (2008) (2)
USING ALGORITHMIC DIFFERENTIATION FOR THE MULTIOBJECTIVE OPTIMIZATION OF A TEST VEHICLE (2012) (1)
A Structure Exploiting Algorithm for Non-Smooth Semi-Linear Elliptic Optimal Control Problems (2020) (1)
Inverse piezoelectric material parameter characterization using a single disc-shaped specimen (2020) (1)
Material parameter determination of a piezoelectric disc with triple-ring-electrodes for increased sensitivity (2017) (1)
Engineering high harmonic generation in semiconductors via pulse shaping (2012) (1)
Algorithms Based on Abs-Linearization for Non-smooth Optimization with PDE Constraints (2021) (1)
Algorithmic differentiation of an industrial airfoil design tool coupled with the adjoint CFD method (2020) (1)
Checkpointing Approaches for the Computation of Adjoints Covering Resilience Issues (2020) (1)
Towards the Solution of Robust Gas Network Optimization Problems Using the Constrained Active Signature Method (2022) (1)
Solving Non-Smooth Semi-Linear Optimal Control Problems with Abs-Linearization (2018) (1)
Higher derivative tensors from univariate taylor series with comparison to Maple on an engineering problem (2000) (1)
Discrete Adjoints: Theoretical Analysis, Efficient Computation, and Applications (2007) (1)
An Introduction to Using Software Tools for Automatic Differentiation (2003) (1)
How up-to-date are low-rank updates? (2004) (1)
Combinatorial Problems in Algorithmic Differentiation (2012) (1)
Shape Optimisation With Differentiated Cad-Kernel For U-Bend Testcase (2016) (1)
Calculus-based optimization of the electron dynamics in nanostructures (2011) (1)
Dynamic simulation of particle‐filled hollow spheres (2011) (1)
A quasi-Newton method with optimal r-order without independence assumption ∗ (2006) (1)
11. Observations on Efficiency (2008) (1)
New Results for the Handling of Additional Equality Constraints in One-Shot Optimization (2018) (1)
ADOL-C : 1 A Pa kage for the Automati Di erentiationof Algorithms Written in C / C + + Version 1 . 8 , De ember 1998 (2007) (1)
Material parameter determination of a piezoelectric disc with triple-ring-electrodes for increased sensitivity (2017) (1)
Inverse piezoelectric material parameter characterization using a single disc-shaped specimen (2020) (1)
Optimization of Optimal Power Flow Problems (2011) (0)
Efficient similarity factorization of rank‐1 modifications (2005) (0)
2. A Framework for Evaluating Functions (2008) (0)
New Results for the Handling of Additional Equality Constraints in One-Shot Optimization (2018) (0)
On an inexact trust-region SQP-filter method for constrained nonlinear optimization (2015) (0)
On Lipschitz optimization based on gray-box piecewise linearization (2015) (0)
Defect reconstruction in a two-dimensional semi-analytical waveguide model via derivative-based optimization. (2021) (0)
Achieving linear or quadratic convergence on piecewise smooth optimization problems (2017) (0)
2D Simulations of Piezoelectric PDEs as a Basis for Electrode Shape Optimization (2019) (0)
A10.1 Optimised Multi-Electrode Topology for Piezoelectric Material Characterisation (2021) (0)
Solving piezoelectric inverse problems using Algorithmic Differentiation (2020) (0)
Defect reconstruction in a 2D semi-analytical waveguide model via derivative-based optimization (2021) (0)
Covering Resilience: [1ex] A Recent Development for Binomial Checkpointing (2016) (0)
Interactive comment on “ Algorithmic Differentiation for Cloud Schemes (2019) (0)
On the numerical stability of algorithmic differentiation (2011) (0)
Why Vector-jacobian Products Are Cheap but Preconditioning Is Generally Costly (0)
14. Differentiation without Differentiability (2008) (0)
Computing roots for the analytic modeling of guided waves in acoustic waveguides (2012) (0)
An Algorithm for Piecewise Linear Optimization of Objective Functions in Abs-normal Form (2017) (0)
On a trust region method without exact Jacobian matrices (2005) (0)
SCADOPT: An Open-Source HPC Framework for Solving PDE Constrained Optimization Problems Using AD (2014) (0)
Modelling damping in piezoceramics: A comparative study (2021) (0)
8. Exploiting Sparsity by Compression (2008) (0)
Solving Non-Smooth Semi-Linear Elliptic Optimal Control Problems with Abs-Linearization (2020) (0)
Increasing the Sensitivity of Impedance with Respect to Material Parameters of Triple-Ring Electrode Piezoelectric Transducers using Algorithmic Differentiation (2016) (0)
15. Implicit and Iterative Differentiation (2008) (0)
12. Reversal Schedules and Checkpointing (2008) (0)
Preface (2012) (0)
An algorithm for nonsmooth optimization by successive piecewise linearization (2018) (0)
6. Implementation and Software (2008) (0)
Piecewise smooth system and optimization with piecewise linearization via algorithmic differentiation (NII Shonan Meeting 2018-9) (2018) (0)
Efficient aerodynamic shape optimization by structure exploitation (2012) (0)
10. Jacobian and Hessian Accumulation (2008) (0)
Defect reconstruction in a 2D semi-analytical waveguide model via derivative-based optimization (2021) (0)
4. Memory Issues and Complexity Bounds (2008) (0)
7. Sparse Forward and Reverse (2008) (0)
On Theoretical and Numerical Aspects of the Shape Sensitivity Analysis for the 3 D Time-dependent Maxwell ’ s Equations (2015) (0)
9. Going beyond Forward and Reverse (2008) (0)
Modelling damping in piezoceramics: A comparative study (2021) (0)
Using AD-generated Derivatives in Optimal Control of an Industrial Robot (2004) (0)
13. Taylor and Tensor Coefficients (2008) (0)
5. Repeating and Extending Reverse (2008) (0)
On a Frank-Wolfe Approach for Abs-smooth Functions (2023) (0)
Existence, uniqueness and regularity of piezoelectric partial differential equations (2019) (0)
Enclosures of Higher Order Derivative Tensors on the Basis of Univariate Taylor Expansions (2002) (0)
Structure Exploiting Adjoints for Finite Element Discretizations (2012) (0)
Priority Programme 1962 Beyond the Oracle: Opportunities of Piecewise Differentiation (0)
Numerical Simulation of the Damping Behavior of Particle-Filled Hollow Spheres (2012) (0)
Algorithmic Differentiation for Calculus‐based Optimization (2010) (0)
Algorithmic differentiation of an industrial airfoil design tool coupled with the adjoint CFD method (2019) (0)
Optimization with Partial Differential Equations (2008) (0)
CAD-based shape optimisation of the NASA CRM wing-body and nacelle-pylon intersections (2017) (0)
Optimization with Partial Differential Equations (2008) (0)
Preface: Special issue dedicated to Andreas Griewank on the occasion of his 60th birthday Preface (2012) (0)

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