Conference Agenda

Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).

 
 
Session Overview
Date: Sunday, 03/Sept/2023
6:00pm
-
9:00pm
Reg 1: Registration and Icebreaker
Location: ZHG Foyer
Date: Monday, 04/Sept/2023
8:00am
-
9:00am
Reg: Registration
Location: ZHG Foyer
9:00am
-
9:50am
Opening: President of the University of Göttingen Prof. Metin Tolan
Location: ZHG 011
Chair: Thorsten Hohage
9:50am
-
10:40am
Pl 1: Plenary lecture
Location: ZHG 011
Chair: Simon Robert Arridge
 

On the sample complexity of inverse problems

Giovanni S. Alberti

10:40am
-
11:10am
C1: Coffee Break
Location: ZHG Foyer
11:10am
-
12:00pm
Pl 2: Plenary lecture
Location: ZHG 011
Chair: Rainer Kress
 

An unexpected role of transmission eigenvalues in imaging algorithms

Houssem Haddar

12:00pm
-
1:30pm
LB1: Lunch Break
Location: Mensa
1:30pm
-
3:30pm
MS03 1: Compressed Sensing meets Statistical Inverse Learning
Location: VG2.103
Chair: Tatiana Alessandra Bubba
Chair: Luca Ratti
Chair: Matteo Santacesaria
 

Compressed sensing for the sparse Radon transform

Giovanni S. Alberti, Alessandro Felisi, Matteo Santacesaria, S. Ivan Trapasso



Regularization for learning from unlabeled data using related labeled data

Werner Zellinger, Sergei V. Pereverzyev



Random tree Besov priors for detail detection

Hanne Kekkonen, Matti Lassas, Samuli Siltanen

MS12 1: Fast optimization-based methods for inverse problems
Location: VG2.102
Chair: Tuomo Valkonen
 

Parameter-Robust Preconditioning for Oseen Iteration Applied to Navier–Stokes Control Problems

Santolo Leveque, John Pearson



Sparse Bayesian Inference with Regularized Gaussian Distributions

Jasper Marijn Everink, Yiqiu Dong, Martin Skovgaard Andersen



An Accelerated Level-Set Method for Inverse Scattering Problems

Lorenzo Audibert, Houssem Haddar, Xiaoli Liu



A first-order optimization method with simultaneous adaptive pde constraint solver

Bjørn Christian Skov Jensen, Tuomo Valkonen

MS14 1: Inverse Modelling with Applications
Location: VG1.104
Chair: Daniel Lesnic
Chair: Karel Van Bockstal
 

Scanning biological tissues using thermal-waves

Daniel Lesnic



Identification of the time-dependent part of a heat source in thermoelasticity

Karel Van Bockstal, Liviu Marin



Uniqueness of determining a space-dependent source for inverse source problems in thermoelasticity

Frederick Maes, Karel Van Bockstal

MS15 1: Experimental and Algorithmic Progress in Photoemission Orbital Imaging
Location: VG1.102
Chair: Russell Luke
Chair: Stefan Mathias
 

Imaging valence and excited states of fullerenes in momentum space

Benjamin Stadtmüller, Martin Aeschlimann



Imaging molecular wave functions with photoemission orbital tomography: An introduction

F. Stefan Tautz



Time-resolved photoemission orbital tomography of organic interfaces

Ulrich Höfer



Exciton Photoemission Orbital Tomography: Probing the electron and the hole contributions

G. S. Matthijs Jansen

MS18 1: Inverse problems for fractional and nonlocal equations
Location: VG1.103
Chair: Yi-Hsuan Lin
Chair: Jesse Railo
Chair: Mikko Salo
 

On the determination of a coefficient in a space-fractional equation with operators of Abel type

Barbara Kaltenbacher, William Rundell



Nonlocality Helps

Gunther Uhlmann



Fractional p-Calderón problems

Philipp Zimmermann



Uniqueness in an inverse problem for the anisotropic fractional conductivity equation

Giovanni Covi

MS25 1: Hyperparameter estimation in imaging inverse problems: recent advances on optimisation-based, learning and statistical approaches
Location: VG0.111
Chair: Luca Calatroni
Chair: Monica Pragliola
 

Automatic Differentiation of Fixed-Point Algorithms for Structured Non-smooth Optimization

Peter Ochs



Learning data-driven priors for image reconstruction: From bilevel optimisation to neural network-based unrolled schemes

Kostas Papafitsoros, Andreas Kofler, Fabian Altekrüger, Fatima Antarou Ba, Christoph Kolbitsch, Evangelos Papoutsellis, David Schote, Clemens Sirotenko, Felix Zimmermann



Learned proximal operators in accelerated unfolded methods with pseudodifferential operators

Andrea Sebastiani, Tatiana Alessandra Bubba, Luca Ratti, Subhadip Mukherjee



Masked and Unmasked Principles for Automatic Parameter Selection in Variational Image Restoration for Poisson Noise Corruption

Francesca Bevilacqua, Alessandro Lanza, Monica Pragliola, Fiorella Sgallari

MS29 1: Eigenvalues in inverse scattering
Location: VG3.104
Chair: Martin Halla
Chair: Peter Monk
 

Interior transmission eigenvalue trajectories

Andreas Kleefeld, Lukas Pieronek



A new family of modified interior transmission eigenvalues for a fluid-solid interaction

Peter Monk, Virginia Selgas



Computation of transmission eigenvalues in singular configurations using a corner perfectly matched layer

Anne-Sophie Bonnet-Ben Dhia, Lucas Chesnel, Florian Monteghetti

MS34 1: Learned reconstructions for nonlinear inverse problems
Location: VG3.103
Chair: Simon Robert Arridge
Chair: Andreas Selmar Hauptmann
 

Continuous generative models for nonlinear inverse problems

Matteo Santacesaria, Giovanni S. Alberti, Johannes Hertrich, Silvia Sciutto



Data-driven quantitative photoacoustic imaging

Janek Grohl



Mapping properties of neural networks and inverse problems

Matti Lassas, Michael Puthawala, Ivan Dokmanić, Maarten de Hoop



Data-driven regularization theory of invertible ResNets for solving inverse problems

Judith Nickel, Clemens Arndt, Tobias Kluth, Sören Dittmer, Alexander Denker, Meira Iske, Nick Heilenkötter, Peter Maass

MS39: Statistical inverse problems: regularization, learning and guarantees
Location: VG2.105
Chair: Kim Knudsen
Chair: Abhishake Abhishake
 

On the Regularized Functional Regression

Sergei Pereverzyev



Inverse learning in Hilbert scales

Abhishake Abhishake



Stability and Generalization for Stochastic Gradient Methods

Yiming Ying



Causality and Consistency in Bayesian Inference Paradigms

Klaus Mosegaard

MS43 1: Inverse Problems in radiation protection and nuclear safety
Location: VG1.108
Chair: Lorenz Kuger
Chair: Samuli Siltanen
 

Passive Gamma Emission Tomography (PGET) of spent nuclear fuel

Riina Virta, Tatiana A. Bubba, Mikael Moring, Samuli Siltanen, Tapani Honkamaa, Peter Dendooven



Bayesian modelling and inference for radiation source localisation

Cécilia Tarpau, Ming Fang, Yoann Altmann, Angela Di Fulvio, Marcelo Pereyra, Konstantinos Zygalakis



Image reconstruction for Passive Gamma Emission Tomography of spent nuclear fuel

Peter Dendooven, Riina Virta, Tatiana A. Bubba, Mikael Moring, Samuli Siltanen, Tapani Honkamaa



Exact inversion of an integral transform arising in passive detection of gamma-ray sources with a Compton camera

Fatma Terzioglu

MS44 1: Modelling in Earth and planetary sciences by data inversion at various scales
Location: VG2.104
Chair: Christian Gerhards
Chair: Volker Michel
Chair: Frederik J Simons
 

Inverse magnetization problems in geoscience at various scales

Christian Gerhards



Slepian concentration problem for polynomials on the Ball

Xinpeng Huang



Regularized matching pursuits with a learning add-on for geoscientific inverse problems

Naomi Schneider



Non-unique Inversions in Earth Sciences - an Underestimated Pitfall?

Volker Michel

MS52 1: Integral geometry, rigidity and geometric inverse problems
Location: VG1.105
Chair: Francois Sylvain Monard
Chair: Plamen Stefanov
 

Inverse problem for Yang-Mills-Higgs fields

Lauri Oksanen, Xi Chen, Matti Lassas, Gabriel Paternain



The Lorentzian scattering rigidity problem and rigidity of stationary metrics

Plamen Stefanov

MS54 1: The x-ray transform and its generalizations: Theory, methods, and applications
Location: VG1.101
Chair: Suman Kumar Sahoo
 

Unique continuation for the momentum ray transform

Joonas Ilmavirta, Pu-Zhao Kow, Suman Kumar Sahoo



The linearized Calderon problem for polyharmonic operators

Suman Kumar Sahoo, Mikko Salo



The star transform and its links to various areas of mathematics

Gaik Ambartsoumian, Mohammad Javad Latifi



Linearized Calderon problem for biharmonic operator with partial data

Divyansh Agrawal, Ravi Shankar Jaiswal, Suman Kumar Sahoo

MS55 1: Nonlinear Inverse Scattering and Related Topics
Location: VG3.101
Chair: Yang Yang
 

An Inverse Problem for Nonlinear Time-dependent Schrodinger Equations with Partial Data

Ting Zhou



Supercomputing-based inverse modeling of high-resolution atmospheric contaminant source intensity distribution using remote sensing data

Mingming Huang, Yi Heng, Junzhi Chen, Yinan Han, Lars Hoffmann, Sven Gross



Some progresses in Carleman estimates and their applications in inverse problems for stochastic partial differential equations

Fangfang Dou, Wanli Du, Peimin Lu



Inverse scattering problems with incomplete data

Xiaodong Liu

MS56 1: Inverse Problems of Transport Equations and Related Topics
Location: VG2.106
Chair: Ru-Yu Lai
Chair: Hanming Zhou
 

Multiscale Parameter Identification: mesoscopic kernel reconstruction from macroscopic data

Kathrin Hellmuth



A 1-Wasserstein framework for forward-peaked diffusive transport

Guillaume Bal, Benjamin Palacios



Recovery of coefficients in nonlinear transport equations

Hanming Zhou



Mapping properties and functional relations for the hyperbolic X-ray transform

Francois Sylvain Monard, Nikolaos Eptaminitakis, Yuzhou Zou

MS57 1: Inverse Problems in Time-Domain Imaging at the Small Scales
Location: VG3.102
Chair: Eric Bonnetier
Chair: Xinlin Cao
Chair: Mourad Sini
 

Inverse wave scattering in the time domain

Andrea Mantile, Andrea Posilicano



A new approach to an inverse source problem for the wave equation

Mourad Sini, Haibing Wang



Simultaneous Reconstruction Of Optical And Acoustical Properties In PA-Imaging Using Plasmonics.

Ahcene Ghandriche, Mourad Sini



Time domain analysis of body resonant-modes for classical waves

Andrea Mantile, Andrea Posilicano

3:30pm
-
4:00pm
C2: Coffee Break
Location: ZHG Foyer
4:00pm
-
6:00pm
MS03 2: Compressed Sensing meets Statistical Inverse Learning
Location: VG2.103
Chair: Tatiana Alessandra Bubba
Chair: Luca Ratti
Chair: Matteo Santacesaria
 

SGD for statistical inverse problems

Abhishake Abhishake



Convex regularization in statistical inverse learning problems

Tapio Helin



An off-the-grid approach to multi-compartment magnetic fingerprinting

Clarice Poon



How many Neurons do we need? A refined Analysis.

Mike Nguyen, Nicole Mücke

MS12 2: Fast optimization-based methods for inverse problems
Location: VG2.102
Chair: Bjørn Christian Skov Jensen
 

Limited memory restarted $\ell^p-\ell^q$ minimization methods using generalized Krylov subspaces

Alessandro Buccini, Lothar Reichel



A high order PDE-constrained optimization for the image denoising problem

Lekbir Afraites, Aissam Hadri, Amine Laghrib, Mourad Nachaoui



A primal dual projection algorithm for efficient constraint preconditioning

Anton Schiela, Martin Weiser, Matthias Stöcklein



An Inexact Trust-Region Algorithm for Nonsmooth Nonconvex Optimization

Robert Baraldi, Drew P. Kouri

MS14 2: Inverse Modelling with Applications
Location: VG1.104
Chair: Daniel Lesnic
Chair: Karel Van Bockstal
 

Boundary identification in cantilever beam equation related to the atomic force microscopy

Onur Baysal, Alemdar Hasanov, Alexandre Kawano



Recent developments on integral equation approaches for Electrical Impedance Tomography

Cristiana Sebu



Inverse problem of determining time-dependent diffusion coefficient in the time-fractional heat equation

Daurenbek Serikbaev



Determining an Iwatsuka Hamiltonian through quantum velocity measurement

Éric Soccorsi

MS15 2: Experimental and Algorithmic Progress in Photoemission Orbital Imaging
Location: VG1.102
Chair: Russell Luke
Chair: Stefan Mathias
 

A minimalist approach to 3D photoemission orbital tomography: how many measurements are enough?

Thi Lan Dinh



Experimental progress towards time-resolved three-dimensional orbital tomography

Wiebke Bennecke, Jan Philipp Bange, David Schmitt, Thi Lan Dinh, Daniel Steil, Sabine Steil, D Russell Luke, Marcel Reutzel, G S Matthijs Jansen, Stefan Mathias



Element-Selective Structural Information by Hard X-ray Photoelectron Diffraction

Hans-Joachim Elmers



Imaging molecular wave functions with photoemission orbital tomography: Recent developments

Peter Puschnig

MS18 2: Inverse problems for fractional and nonlocal equations
Location: VG1.103
Chair: Yi-Hsuan Lin
Chair: Jesse Railo
Chair: Mikko Salo
 

The Calderón problem for directionally antilocal operators

María Ángeles García-Ferrero



An Inverse Problem for Nonlinear Fractional Magnetic Schrodinger Equation

Ru-Yu Lai



Properties of solutions for anisotropic viscoelastic systems

Maarten de Hoop, Masato Kimura, Ching-Lung Lin, Gen Nakamura



Fractional anisotropic Calderon problem on Riemannian manifolds

Katya Krupchyk

MS25 2: Hyperparameter estimation in imaging inverse problems: recent advances on optimisation-based, learning and statistical approaches
Location: VG0.110
Chair: Luca Calatroni
Chair: Monica Pragliola
 

Learning a sparsity-promoting regularizer for linear inverse problems

Luca Ratti, Giovanni S. Alberti, Ernesto De Vito, Tapio Helin, Matti Lassas, Matteo Santacesaria



Noise Estimation via Tractable Diffusion

Martin Zach, Thomas Pock, Erich Kobler, Antonin Chambolle



Speckle noise removal via learned variational models

Salvatore Cuomo, Mariapia De Rosa, Stefano Izzo, Monica Pragliola, Francesco Piccialli



Bayesian sparse optimization for dictionary learning

Alberto Bocchinfuso, Daniela Calvetti, Erkki Somersalo

MS29 2: Eigenvalues in inverse scattering
Location: VG3.104
Chair: Martin Halla
Chair: Peter Monk
 

A duality between scattering poles and transmission eigenvalues in scattering theory

Fioralba Cakoni, David Colton, Houssem Haddar, Dana Zilberberg



Prolate eigensystem and its application in Born inverse scattering

Shixu Meng



Scattering from corners and other singularities

Emilia Lavie Kyllikki Blåsten



The inverse spectral problem for a spherically symmetric refractive index using modified transmission eigenvalues

Drossos Gintides, Nikolaos Pallikarakis, Kyriakos Stratouras

MS34 2: Learned reconstructions for nonlinear inverse problems
Location: VG3.103
Chair: Simon Robert Arridge
Chair: Andreas Selmar Hauptmann
 

Learned iterative model-based approaches in quantitative photoacoustic tomography

Anssi Manninen, Andreas Hauptmann, Felix Lucka



Autocorrelation analysis for cryo-EM with sparsifying priors

Oscar Mickelin



Model corrections in linear and nonlinear inverse problems

Andreas Hauptmann, Arttu Arjas, Mikko Sillanpää

MS35: Edge-preserving uncertainty quantification for imaging
Location: VG2.105
Chair: Amal Mohammed A Alghamdi
Chair: Jakob Sauer Jørgensen
 

Efficient Bayesian computation for low-photon imaging problems

Savvas Melidonis, Paul Dobson, Yoann Altmann, Marcelo Pereyra, Konstantinos C. Zygalakis



Advancements of $\alpha$-stable priors for Bayesian inverse problems

Neil Chada, Lassi Roininen, Tomas Soto, Jarkko Suuronen



Edge preserving Random Tree Besov Priors

Hanne Kekkonen, Matti Lassas, Eero Saksman, Samuli Siltanen



CUQIpy - Computational Uncertainty Quantification for Inverse problems in Python

Jakob Sauer Jørgensen, Amal Alghamdi, Nicolai Riis

MS43 2: Inverse Problems in radiation protection and nuclear safety
Location: VG1.108
Chair: Lorenz Kuger
Chair: Samuli Siltanen
 

Gamma spectrum analysis in nuclear decommissioning

Michelle Bruch, Lorenz Kuger, Martin Burger



Practical gamma ray imaging with monolithic scintillation detector Compton cameras

Lorenz Kuger, Martin Burger



Machine Learning Techniques applied to Compton Cameras

Sibylle Petrak, Karsten Hölzer

MS44 2: Modelling in Earth and planetary sciences by data inversion at various scales
Location: VG2.104
Chair: Christian Gerhards
Chair: Volker Michel
Chair: Frederik J Simons
 

Efficient Parameter Estimation of Sampled Random Fields

Frederik J Simons, Arthur P. Guillaumin, Adam M. Sykulski, Sofia C. Olhede



Co-estimation of core and lithospheric signals in satellite magnetic data

Mikkel Otzen, Chris Finlay



Transdimensional joint inversion of gravity and surface wave phase velocities

Wolfgang Szwillus



The inverse problem of micromagnetic tomography in rock- and paleomagnetism

Karl Fabian

MS52 2: Integral geometry, rigidity and geometric inverse problems
Location: VG1.105
Chair: Francois Sylvain Monard
Chair: Plamen Stefanov
 

Resonant forms at zero for dissipative Anosov flows

Mihajlo Cekic, Gabriel Paternain



Ray transform problems arising from seismology

Joonas Ilmavirta



X-ray mapping properties and degenerately elliptic operators

Yuzhou Zou, Francois Monard, Rohit Kumar Mishra



The range of the non-Abelian X-ray transform

Jan Bohr

MS54 2: The x-ray transform and its generalizations: Theory, methods, and applications
Location: VG1.101
Chair: Suman Kumar Sahoo
 

Inversion of the momenta X-ray transform of symmetric tensor fields in the plane

Kamran Sadiq



Simultaneous recovery of attenuation and source density in SPECT and multibang regularisation

Sean Holman



Inversion of a restricted transverse ray transform on symmetric $m$-tensor fields in $\mathbb{R}^3$

Rohit Kumar Mishra, Chandni Thakkar



Inverse problems, unique continuation and the fractional Laplacian

Jesse Railo

MS55 2: Nonlinear Inverse Scattering and Related Topics
Location: VG3.101
Chair: Yang Yang
 

Imaging with two-photon absorption optics

Yimin Zhong



Hopf lemma for fractional diffusion equations and application to inverse problem

Daijun Jiang, Zhiyuan Li

MS56 2: Inverse Problems of Transport Equations and Related Topics
Location: VG2.106
Chair: Ru-Yu Lai
Chair: Hanming Zhou
 

Reconstruction of the doping profile in Vlasov-Poisson

Weiran Sun, Ru-yu Lai, Qin Li



Quantitative reconstructions in inverse transport problems

Kui Ren



Imaging with two-photon absorption optics

Yimin Zhong

MS57 2: Inverse Problems in Time-Domain Imaging at the Small Scales
Location: VG3.102
Chair: Eric Bonnetier
Chair: Xinlin Cao
Chair: Mourad Sini
 

A mathematical theory of resolution limits for dynamic super-resolution in particle tracking problems

Ping Liu, Habib Ammari



Heat Generation Using Lorentzian Nanoparticles. The Full Maxwell System

Arpan Mukherjee, Mourad Sini



Lipschitz stability for some inverse problems for a hyperbolic PDE with space and time dependent coefficients

Venkateswaran P. Krishnan, Soumen Senapati, Rakesh Rakesh



Scattering of electromagnetic waves by small obstacles

Sébastien Tordeux

Date: Tuesday, 05/Sept/2023
9:00am
-
10:00am
CP: Calderón Prizes
Location: ZHG 011
Chair: Barbara Kaltenbacher
10:00am
-
10:50am
Pl 3: Plenary lecture
Location: ZHG 011
Chair: Bastian Harrach
 

On the Fractional Calderon Problem

Angkana Rüland

10:50am
-
11:10am
C3: Coffee Break
Location: ZHG Foyer
11:10am
-
12:00pm
Pl 4: Plenary lecture
Location: ZHG 011
Chair: Mikko Salo
 

Microlocal applications to the study of marked length spectrum rigidity and lens rigidity in chaotic settings

Colin Guillarmou

12:00pm
-
1:30pm
LB2: Lunch Break
Location: Mensa
1:30pm
-
3:30pm
MS02 1: Advances in regularization for some classes of nonlinear inverse problems
Location: VG1.102
Chair: Bernd Hofmann
Chair: Robert Plato
 

Deautoconvolution in the two-dimensional case

Yu Deng, Bernd Hofmann, Frank Werner



Efficient minimization of variational functionals via semismooth* Newton methods

Simon Hubmer, Ronny Ramlau



Convergence Nestorov acceleration for linear ill-posed problems

Stefan Kindermann



Analysis of the discrepancy principle for Tikhonov regularization under low order source conditions

Chantal Klinkhammer, Robert Plato

MS04 1: Statistical and computational aspects of non-linear inverse problems
Location: VG2.102
Chair: Richard Nickl
Chair: Sven Wang
 

Surface finite element approximation of Gaussian random fields on Riemannian manifolds

Annika Lang



Concentration analysis of multivariate elliptic diffusions

Cathrine Aeckerle-Willems, Claudia Strauch, Lukas Trottner



A Bernstein-von-Mises theorem for the Calder\'{o}n problem with piecewise constant conductivities

Jan Bohr



Bayesian estimation in a multidimensional diffusion model with high frequency data

Marc Hoffmann, Kolyan Ray

MS14 3: Inverse Modelling with Applications
Location: VG1.104
Chair: Daniel Lesnic
Chair: Karel Van Bockstal
 

Inverse Problems for Generalized Subdiffusion Equations

Nataliia Kinash



Numerical solution to inverse source problems for a parabolic equation with nonlocal conditions

Anar Rahimov, Kamil Aida-zade



Advances in object characterisation for metal detection inverse problems

Paul David Ledger, William R.B. Lionheart, James Elgy

MS18 3: Inverse problems for fractional and nonlocal equations
Location: VG1.103
Chair: Yi-Hsuan Lin
Chair: Jesse Railo
Chair: Mikko Salo
 

Inverse Problems for Subdiffusion from Observation at an Unknown Terminal Time

Bangti Jin



UCP and counterexamples to UCP involving generalized ray transforms

Venky Krishnan



An inverse problem related to fractional wave equation

Pu-Zhao Kow

MS19 1: Theory and algorithms of super-resolution in imaging and inverse problems
Location: VG3.103
Chair: Habib Ammari
Chair: Ping Liu
 

Stability and super-resolution of MUSIC and ESPRIT for multi-snapshot spectral estimation

Weilin Li



A Mathematical Theory of Computational Resolution Limit and Super-resolution

Ping Liu, Habib Ammari



Total variation regularized problems: a support stability result

Yohann De Castro, Vincent Duval, Romain Petit



Theoretical and numerical off-the-grid curve reconstruction

Bastien Laville, Laure Blanc-Féraud, Gilles Aubert

MS21 1: Prior Information in Inverse Problems
Location: VG2.103
Chair: Andreas Horst
Chair: Jakob Lemvig
 

Reconstructing spatio-temporal, sparse tomographic data using cylindrical shearlets

Tatiana Alessandra Bubba



Fractal priors for imaging using random wavelet trees

Samuli Siltanen



Sampling from a posterior with Besov prior

Andreas Horst, Babak Maboudi Afkham, Yiqiu Dong, Jakob Lemvig



Regularizing Inverse Problems through Translation Invariant Diagonal Frame Decompositions

Jürgen Frikel

MS22 1: Imaging with Non-Linear Measurements: Tomography and Reconstruction from Phaseless or Folded Data
Location: VG1.101
Chair: Matthias Beckmann
Chair: Robert Beinert
Chair: Michael Quellmalz
 

Gradient Methods for Blind Ptychography

Oleh Melnyk



Inversion of the Modulo Radon Transform via Orthogonal Matching Pursuit

Matthias Beckmann



Phaseless sampling of the short-time Fourier transform

Lukas Liehr



Phase Retrieval in Optical Diffraction Tomography

Robert Beinert, Michael Quellmalz

MS28 1: Modelling and optimisation in non-Euclidean settings for inverse problems
Location: VG1.108
Chair: Luca Calatroni
Chair: Claudio Estatico
Chair: Dirk Lorenz
 

A lifted Bregman formulation for the inversion of deep neural networks

Xiaoyu Wang, Martin Benning



A Bregman-Kaczmarz method for nonlinear systems of equations

Maximilian Winkler



Regularization in non-Euclidean spaces meets numerical linear algebra

Claudio Estatico, Brigida Bonino, Luca Calatroni, Fabio Di Benedetto, Marta Lazzaretti, Flavia Lenti

MS29 3: Eigenvalues in inverse scattering
Location: VG3.104
Chair: Martin Halla
Chair: Peter Monk
 

A new family of nearly singular interior transmission eigenvalues for inverse scattering

Martin Halla



Interior transmission problems related to imaging periodic layers

Houssem Haddar, Nouha Jenhani



Transparent scatterers and transmission eigenvalues of infinite multiplicity

Roman Novikov, Piotr G. Grinevich

MS38 1: Inverse eigenvalue problems in astrophysics
Location: VG2.105
Chair: Charlotte Gehan
Chair: Damien Fournier
 

No planet is an island: what we can learn from how Saturn interacts with its surroundings

Janosz Walker Dewberry



Inversion methods in asteroseismology

Daniel Roy Reese



Internal structure of giant planets from gravity data

Florian Debras, Gilles Chabrier



Accurate asteroseismic surface rotation rates for evolved red giants

Felix Ahlborn, Earl P. Bellinger, Saskia Hekker, Sarbani Basu, Daria Mokrytska

MS40: Dynamic Imaging
Location: VG2.107
Chair: Peter Elbau
 

Iterative and data-driven motion compensation in tomography

Bernadette Hahn, Mathias Feinler



Sparse optimization algorithms for dynamic imaging

Silvio Fanzon, Kristian Bredies, Marcello Carioni, Francisco Romero, Daniel Walter



New approaches for reconstruction in dynamic nano-CT imaging

Anne Wald, Björn Ehlers, Alice Oberacker, Bernadette Hahn-Rigaud, Tim Salditt, Jens Lucht



Artifact reduction for time dependent image reconstruction in magnetic particle imaging

Christina Brandt, Stephanie Blanke

MS47 1: Scattering and spectral imaging: inverse problems and algorithms
Location: VG3.101
Chair: Eric Todd Quinto
Chair: Gael Rigaud
 

Microlocal properties and injectivity for Ellipsoidal and hyperbolic Radon transforms

James Webber, Sean Holman, Eric Todd Quinto



Motion detection in diffraction tomography

Michael Quellmalz, Peter Elbau, Otmar Scherzer, Gabriele Steidl



Deep learning to tackle model inexactness and motion in Compton Scattering Tomography

Gael Rigaud, David Frank



Diffusion based regularization for multi-energy CT with limited data

Bernadette Hahn-Rigaud, Gaël Rigaud, Richard Schmähl

MS49 1: Applied parameter identification in physics
Location: VG3.102
Chair: Tram Nguyen
Chair: Anne Wald
 

Photoacoustic imaging in acoustic attenuating media

Otmar Scherzer, Peter Elbau, Cong Shi



Fully Stochastic Reconstruction Methods in Coupled Physics Imaging

Simon Robert Arridge



Some coefficient identification problems from boundary data satisfying range invariance for Newton type methods

Barbara Kaltenbacher



Traction force microscopy – a testbed for solving the inverse problem of elasticity

Ulrich Schwarz

MS52 3: Integral geometry, rigidity and geometric inverse problems
Location: VG1.105
Chair: Francois Sylvain Monard
Chair: Plamen Stefanov
 

Marked length spectrum rigidity for Anosov surfaces

Thibault Lefeuvre



Weakly nonlinear geometric optics for the Westervelt equation

Nikolas Eptaminitakis

MS58 1: Shape Optimization and Inverse Problems
Location: VG2.104
Chair: Lekbir Afraites
Chair: Antoine Laurain
Chair: Julius Fergy Tiongson Rabago
 

Isogeometric Shape Optimization of Periodic Structures in Three Dimensions

Helmut Harbrecht, Michael Multerer, Remo von Rickenbach



Stokes Traction Method: A Numerical Approach to Volume Constrained Shape Optimization Problems

John Sebastian Hoseña Simon



Non-conventional shape optimization methods for solving shape inverse problems

Julius Fergy Tiongson Rabago, Lekbir Afraites, Aissam Hadri

 
3:30pm
-
4:00pm
C4: Coffee Break
Location: ZHG Foyer
4:00pm
-
6:00pm
MS02 2: Advances in regularization for some classes of nonlinear inverse problems
Location: VG1.102
Chair: Bernd Hofmann
Chair: Robert Plato
 

New results for variational regularization with oversmoothing penalty term in Banach spaces

Bernd Hofmann, Chantal Klinkhammer, Robert Plato



Iterative regularization methods for non-linear ill-posed operator equations in Banach spaces

Pallavi Mahale



An Abstract Framework for Stochastic Elliptic Inverse Problems.

Akhtar Khan

MS04 2: Statistical and computational aspects of non-linear inverse problems
Location: VG2.102
Chair: Richard Nickl
Chair: Sven Wang
 

Parameter estimation for boundary conditions in ice sheet models

Fanny Seizilles



MCMC Methods for Low Frequency Diffusion Data

Matteo Giordano



Laplace priors and spatial inhomogeneity in Bayesian inverse problems

Sven Wang, Sergios Agapiou



Analysis of a localized non-linear ensemble Kalman-Bucy filter with sparse observations

Gottfried Hastermann, Jana de Wiljes

MS17: Machine Learning Techniques for Bayesian Inverse Problems
Location: VG1.104
Chair: Angelina Senchukova
 

Stochastic Normalizing Flows for Inverse Problems via Markov Chains

Paul Hagemann, Johannes Hertrich, Gabriele Steidl



Bayesian computation with Plug & Play priors for inverse problems in imaging

Remi Laumont, Valentin De bortoli, Andres Almansa, Julie Delon, Alain Durmus, Marcelo Pereyra



Edge-preserving inversion with heavy-tailed Bayesian neural networks priors

Angelina Senchukova, Felipe Uribe, Jana de Wiljes, Lassi Roininen

MS19 2: Theory and algorithms of super-resolution in imaging and inverse problems
Location: VG3.103
Chair: Habib Ammari
Chair: Ping Liu
 

IFF: A Super-resolution Algorithm for Multiple Measurements

Zetao Fei, Hai Zhang



Vectorized Hankel Lift: A Convex Approach for Blind Super-Resolution of Point Sources

Ke Wei



Super-resolved Lasso

Clarice Poon



Approximate inverse scattering via convex programming

Giovanni Alberti, Romain Petit, Matteo Santacesaria

MS21 2: Prior Information in Inverse Problems
Location: VG2.103
Chair: Andreas Horst
Chair: Jakob Lemvig
 

Regularized, pretrained and subspace-restricted Deep Image Prior for CT reconstruction

Riccardo Barbano, Javier Antorán, Johannes Leuschner, Bangti Jin, José Miguel Hernández-Lobato, Zeljko Kereta, Daniel Otero Baguer, Maximilian Schmidt, Alexander Denker, Andreas Hauptmann, Peter Maaß



Monitoring of hemorrhagic stroke using Electrical Impedance Tomography

Ville Kolehmainen



Edge-preserving inversion with $\alpha$-stable priors

Jarkko Suuronen, Tomás Soto, Neil Chada, Lassi Roininen



Optimal learning of high-dimensional classification problems using deep neural networks

Felix Voigtlaender

MS22 2: Imaging with Non-Linear Measurements: Tomography and Reconstruction from Phaseless or Folded Data
Location: VG1.101
Chair: Matthias Beckmann
Chair: Robert Beinert
Chair: Michael Quellmalz
 

Uniqueness theory for 3D phase retrieval and unwrapping

Albert Fannjiang



Interaction Models in Ptychography

Benedikt Diederichs



Tackling noise in multiple dimensions via hysteresis modulo sampling

Dorian Florescu, Ayush Bhandari



Multi-window STFT phase retrieval

Martin Rathmair

MS23 1: Recent developments in reconstruction methods for inverse scattering and electrical impedance tomography
Location: VG1.103
Chair: Roland Griesmaier
Chair: Nuutti Hyvönen
 

Nonlinear impedance boundary conditions in inverse obstacle scattering

Leonie Fink



Far field operator splitting and completion for inhomogeneous medium scattering

Lisa Schätzle



Uniqueness, error bounds and global convergence for an inverse Robin transmission problem with a finite number of electrodes

Andrej Brojatsch



Subspace surrogate methods for Electrical Impedance Tomography

Antti Oskari Autio, Antti Hannukainen

MS28 2: Modelling and optimisation in non-Euclidean settings for inverse problems
Location: VG1.108
Chair: Luca Calatroni
Chair: Claudio Estatico
Chair: Dirk Lorenz
 

Gradient descent-based algorithms for inverse problems in variable exponent Lebesgue spaces

Marta Lazzaretti, Zeljko Kereta, Luca Calatroni, Claudio Estatico



Multiscale hierarchical decomposition methods for images corrupted by multiplicative noise

Joel Barnett, Wen Li, Elena Resmerita, Luminita Vese



Proximal point algorithm in spaces with semidefinite inner product

Emanuele Naldi, Enis Chenchene, Dirk A. Lorenz, Jannis Marquardt



Asymptotic linear convergence of fully-corrective generalized conditional gradient methods

Kristian Bredies, Marcello Carioni, Silvio Fanzon, Daniel Walter

MS38 2: Inverse eigenvalue problems in astrophysics
Location: VG2.105
Chair: Charlotte Gehan
Chair: Damien Fournier
 

Mode identification in rapidly-rotating stars: paving the way to inverse methods

Giovanni M Mirouh



Progress in Asteroseismology: Where We Stand and Where We'll Go

Earl Bellinger



Helioseismic inversions for active latitudes

Samarth Ganesh Kashyap, Laurent Gizon



Probing solar turbulent viscosity with inertial modes

Jordan Philidet, Laurent Gizon

MS42: Inverse Problems with Anisotropy
Location: VG3.104
Chair: Kim Knudsen
 

A density property for tensor products of gradients of harmonic functions

Catalin Ion Carstea



Reconstructing anisotropic conductivities on manifolds

Hjørdis Amanda Schlüter



Imaging anisotropic conductivities from current densities

Bangti Jin



Stability and reconstruction for anisotropic inverse problems.

Romina Gaburro

MS45 1: Optimal Transport meets Inverse Problems
Location: VG0.111
Chair: Marcello Carioni
Chair: Jan-F. Pietschmann
Chair: Matthias Schlottbom
 

Efficient adversarial regularization for inverse problems

Subhadip Mukherjee, Marcello Carioni, Ozan Öktem, Carola-Bibiane Schönlieb



Data Driven Gradient Flows

Jan-F. Pietschmann, Matthias Schlottbom



The quadratic Wasserstein metric for inverse data matching

Björn Engquist, Kui Ren, Yunan Yang



Quadratic regularization of optimal transport problems

Dirk Lorenz, Hinrich Mahler, Paul Manns, Christian Meyer

MS47 2: Scattering and spectral imaging: inverse problems and algorithms
Location: VG3.101
Chair: Eric Todd Quinto
Chair: Gael Rigaud
 

V-line tensor tomography

Gaik Ambartsoumian, Mohammad Javad Latifi, Rohit Kumar Mishra, Indrani Zamindar



Optimal parameter design for spectral CT

Fatma Terzioglu, Guillaume Bal, Emil Sidky



Gamma ray imaging with bidirectional Compton cameras

Lorenz Kuger, Martin Burger



A hybrid algorithm for material decomposition in multi-energy CT

Lukas Neumann, Markus Haltmeier, Thomas Prohaszka

MS49 2: Applied parameter identification in physics
Location: VG3.102
Chair: Tram Nguyen
Chair: Anne Wald
 

A phase-field approach to shape optimization of acoustic waves in dissipative media

Vanja Nikolic



Parameter identification in helioseismology

Damien Fournier



Parameter identification in magnetization models for large ensembles of magnetic nanoparticles

Hannes Albers, Tobias Kluth



Lipschitz stable determination of polyhedral conductivity inclusions from local boundary measurements

Andrea Aspri

MS54 3: The x-ray transform and its generalizations: Theory, methods, and applications
Location: VG1.105
Chair: Suman Kumar Sahoo
 

The Calderón problem for space-time fractional parabolic operators with variable coefficients

Agnid Banerjee, Soumen Senapati



Rich tomography reconstruction problems in applications.

William Lionheart



Localized artifacts in medical imaging

Rima Alaifari



Explicit inversion of momentum ray transform

Shubham Ramkisan Jathar

MS57 3: Inverse Problems in Time-Domain Imaging at the Small Scales
Location: VG2.107
Chair: Eric Bonnetier
Chair: Xinlin Cao
Chair: Mourad Sini
 

The electromagnetic waves generated by a cluster of nanoparticles with high refractive indices and corresponding effective medium theory.

Xinlin Cao



Galerkin Foldy-Lax asymptotic models for time-domain scattering by small particles

Maryna Kachanovska



Electromagnetic waves generated by a moving dielectric under the special relativity assumptions

Manas Kar

MS58 2: Shape Optimization and Inverse Problems
Location: VG2.104
Chair: Lekbir Afraites
Chair: Antoine Laurain
Chair: Julius Fergy Tiongson Rabago
 

Minimization of blood damage induced by non-newtonian fluid flows in moving domains

Valentin Calisti, Sarka Necasova



On the new coupled complex boundary method for shape inverse problem with the Robin homogeneous condition

Lekbir Afraites, Julius Fergy T. Rabago



Shape optimization approach for sharp-interface reconstructions in time-domain full waveform inversion.

Antoine Laurain

Date: Wednesday, 06/Sept/2023
9:00am
-
11:00am
CT01: Contributed talks
Location: VG2.104
Chair: Philipp Ronald Mickan
 

Some Inverse Problems for Parabolic Equations

Mikhail Klibanov



Inverse problems for hyperbolic conservation laws

Duc-Lam Duong



X-ray holographic imaging using intensity correlations

Milad Karimi, Thorsten Hohage

CT02: Contributed talks
Location: VG2.105
Chair: Roman Novikov
 

Lipschitz Stability of Recovering the Conductivity from Internal Current Densities

Lingyun Qiu, Siqin Zheng



Geometric regularization in three-dimensional inverse obstacle scattering

Jannik Rönsch, Henrik Schumacher, Max Wardetzky, Thorsten Hohage



Phase retrieval and phaseless inverse scattering with background information

Thorsten Hohage, Roman Novikov, Vladimir Sivkin



Convergence analysis of optimization-by-continuation algorithms

Ignace Loris

CT03: Contributed talks
Location: VG2.107
Chair: Martin Halla
 

The Foldy-Lax approximation of scattered field by many small inclusions near the resonating frequencies for Lam\`e system

Divya Gangadaraiah, Durga Prasad Challa, Mourad Sini



Microlocal Analysis of Multistatic Synthetic Aperture Radar Imaging

David McMahon, Clifford Nolan



An inverse problem for the Riemannian minimal surface equation

Janne Nurminen

MS01: Machine Learning for Inverse Problems in Medical Imaging
Location: VG1.102
Chair: Christian Fiedler
Chair: Jens Flemming
 

Chances and limitations of machine learning approaches to inverse problems

Jens Flemming



From Manual to Automatic: Streamlining MRI Marker Detection and Localization for Surgical Planning

Christian Fiedler, Silke Kolbig



Approaches on Feature and Model Selection for high-dimensional data in Medical Research and Analysis

Paul-Philipp Jacobs, Timm Denecke, Harald Busse



Deceptive performance of artificial neural networks in semantic segmentation tasks on the example of lung delineation

Marcus Wittig

MS05 1: Numerical meet statistical methods in inverse problems
Location: VG2.102
Chair: Martin Hanke
Chair: Markus Reiß
Chair: Frank Werner
 

Aggregation by the Linear Functional Strategy in Regularized Domain Adaptation

Sergei Pereverzyev



The Henderson problem and the relative entropy functional

Fabio Marc Frommer, Martin Hanke



Early stopping for $L^{2}$-boosting in high-dimensional linear models

Bernhard Stankewitz



Early stopping for conjugate gradients in statistical inverse problems

Laura Hucker, Markus Reiß

MS06 1: Inverse Acoustic and Electromagnetic Scattering Theory - 30 years later
Location: VG0.110
Chair: Fioralba Cakoni
Chair: Houssem Haddar
 

Celebrating Colton and Kress Contributions

Fioralba Cakoni, Houssem Haddar



Passive inverse obstacle scattering problems

Thorsten Hohage, Meng Liu



Target Signatures for Thin Surfaces

Peter Monk



Learning Dynamical Models and Model Components from Observations

Roland Potthast

MS11: Defying the Curse of Dimensionality – Theory and Algorithms for Large Dimensional Bayesian Inversion
Location: VG1.108
Chair: Rafael Flock
Chair: Yiqiu Dong
 

Efficient high-dimensional Bayesian multi-fidelity inverse analysis for expensive legacy solvers

Jonas Nitzler, Wolfgang A. Wall, Phaedon-Stelios Koutsourelakis



Goal-oriented Uncertainty Quantification for Inverse Problems via Variational Encoder-Decoder Networks

Julianne Chung, Matthias Chung, Babak Afkham



Coupled Parameter and Data Dimension Reduction for Bayesian Inference

Qiao Chen, Elise Arnaud, Ricardo Baptista, Olivier Zahm



Certified Coordinate Selection for large-dimensional Bayesian Inversion

Rafael Flock, Yiqiu Dong, Olivier Zahm, Felipe Uribe

MS19 3: Theory and algorithms of super-resolution in imaging and inverse problems
Location: VG3.103
Chair: Habib Ammari
Chair: Ping Liu
 

On Beurling-Selberg Approximations and the Stability of Super-Resolution

Maxime Ferreira Da Costa



A Parameter Identification Algorithm for Gaussian Mixture Models

Xinyu Liu, Hai Zhang



Super-localisation of a point-like emitter in a resonant environment : correction of the mirage effect

Pierre Millien



Optimal super-resolution of close point sources and stability of Prony's method

Rami Katz, Nuha Diab, Dmitry Batenkov

MS22 3: Imaging with Non-Linear Measurements: Tomography and Reconstruction from Phaseless or Folded Data
Location: VG1.101
Chair: Matthias Beckmann
Chair: Robert Beinert
Chair: Michael Quellmalz
 

Phase retrieval from time-frequency structured data

Rima Alaifari



Computational Imaging from Structured Noise

Ayush Bhandari



Phase retrieval framework for direct reconstruction of the projected refractive index applied to ptychography and holography

Johannes Hagemann, Felix Wittwer, Christian G. Schroer



Zero-optics X-ray dark-field imaging using dual energies

Jannis N. Ahlers, Konstantin M. Pavlov, Marcus J. Kitchen, Kaye S. Morgan

MS23 2: Recent developments in reconstruction methods for inverse scattering and electrical impedance tomography
Location: VG1.103
Chair: Roland Griesmaier
Chair: Nuutti Hyvönen
 

Inverse medium scattering for a nonlinear Helmholtz equation

Roland Griesmaier



Linearised inverse conductivity problem: reconstruction and Lipschitz stability for infinite-dimensional spaces of perturbations

Henrik Garde, Nuutti Hyvönen



Optimizing electrode positions in electrical impedance tomography for head imaging

Ruma Rani Maity, Nuutti Hyvönen, Antti Hannukainen, Anton Vavilov



Immersed boundary method for electrical impedance tomography in the frame of electrocardiography

Jérémi Dardé, Niami Nasr, Lisl Weynans

MS26 1: Trends and open problems in cryo electron microscopy
Location: VG3.102
Chair: Carlos Esteve-Yague
Chair: Johannes Schwab
 

Joint Cryo-ET Alignment and Reconstruction with Neural Deformation Fields

Valentin Debarnot, Sidharth Gupta, Konik Kothari, Ivan Dokmanić



Manifold-based Point Cloud Deformations: Theory and Applications to Protein Conformation Processing

Willem Diepeveen, Carlos Esteve-Yagüe, Jan Lellmann, Ozan Öktem, Carola-Bibiane Schönlieb



Spectral decomposition of atomic structures in heterogeneous cryo-EM

Carlos Esteve-Yague, Willem Diepeveen, Ozan Oktem, Carola-Bibiane Schönlieb

MS30 1: Inverse Problems on Graphs and Machine Learning
Location: VG2.103
Chair: Emilia Lavie Kyllikki Blåsten
Chair: Matti Lassas
Chair: Jinpeng Lu
 

Continuum limit for lattice Hamiltonians

Hiroshi Isozaki



Quantum computing algorithms for inverse problems on graphs

Joonas Ilmavirta, Matti Lassas, Jinpeng Lu, Lauri Oksanen, Lauri Ylinen



Inverse problems for the graph Laplacian

Emilia Blåsten, Hiroshi Isozaki, Matti Lassas, Jinpeng Lu



Inverse problems on manifolds via graph-based semi-supervised learning

Daniel Sanz-Alonso, Ruiyi Yang

MS32 1: Parameter identification in time dependent partial differential equations
Location: VG1.104
Chair: Barbara Kaltenbacher
Chair: William Rundell
 

Spacetime finite element methods for inverse and control problems subject to the wave equation

Lauri Oksanen, Spyros Alexakis, Ali Feizmohammadi



Mathematical challenges in Full Waveform inversion

Lukas Pieronek



Optimality of pulse energy for photoacoustic tomography

Barbara Kaltenbacher, Phuoc Truong Huynh



Bi-level iterative regularization for inverse problems in nonlinear PDEs

Tram Nguyen

MS33 1: Quantifying uncertainty for learned Bayesian models
Location: VG1.105
Chair: Marta Malgorzata Betcke
Chair: Martin Holler
 

Equivariant Neural Networks for Indirect Measurements

Nick Heilenkötter, Matthias Beckmann



Bayesian MRI reconstruction with joint uncertainty estimation using diffusion priors

Guanxiong Luo, Moritz Blumenthal, Martin Heide, Martin Uecker



Utilizing variational autoencoders in the Bayesian inverse problem of photoacoustic tomography

Teemu Sahlström, Tanja Tarvainen



Scalable Bayesian uncertainty quantification with learned convex regularisers

Tobías Ignacio Liaudat, Marta Betcke, Jason D. McEwen, Marcelo Pereyra

MS45 2: Optimal Transport meets Inverse Problems
Location: VG0.111
Chair: Marcello Carioni
Chair: Jan-F. Pietschmann
Chair: Matthias Schlottbom
 

Inverse problems in imaging and information fusion via structured multimarginal optimal transport

Johan Karlsson, Yongxin Chen, Filip Elvander, Isabel Haasler, Axel Ringh



Wasserstein PDE G-CNN

Olga Mula, Daan Bon



An Optimal Transport-based approach to Total-Variation regularization for the Diffusion MRI problem

Rodolfo Assereto, Kristian Bredies, Marion I. Menzel, Emanuele Naldi, Claudio Verdun



A game-based approach to learn interaction rules for systems of rational agents

Mauro Bonafini, Massimo Fornasier, Bernhard Schmitzer

MS47 3: Scattering and spectral imaging: inverse problems and algorithms
Location: VG3.101
Chair: Eric Todd Quinto
Chair: Gael Rigaud
 

Analytic and Deep learning-based Inversions in Circular Compton Scattering Tomography

Mai K. Nguyen, Cécilia Tarpau, Javier Cebeiro, Ishak Ayad



On a cylindrical scanning modality in three-dimensional Compton scatter tomography

James Webber

MS53: Uniqueness and stability in inverse problems for partial differential equations
Location: VG3.104
Chair: Sonia Foschiatti
Chair: Elisa Francini
Chair: Eva Sincich
 

Stability for the inverse problem of the determination on an inclusion in a Schrödinger type equation using Cauchy data.

Sonia Foschiatti



Refined instability estimates for two inverse problems

Jenn-Nan Wang



Stability estimates for the inverse fractional conductivity problem

Jesse Railo



Uniqueness and stability for anisotropic inverse problems.

Romina Gaburro

11:00am
-
11:20am
C5: Coffee Break
Location: ZHG Foyer
11:20am
-
12:10pm
Pl 5: Plenary lecture
Location: ZHG 011
Chair: Gunther Uhlmann
 

Geometric inverse problems in 2D: a transport twistor perspective

Gabriel Paternain

12:15pm
-
1:30pm
P: Poster Session
Location: ZHG Foyer
 

Adaptive Method for Bayesian EEG/MEG Source Localization to Support Treatment of Focal Epilepsy

Joonas Lahtinen, Alexandra Koulouri, Tim Erdbrügger, Carsten H. Wolters, Sampsa Pursiainen



Edge-Preserving Tomographic Reconstruction with Uncertain View Angles

Per Christian Hansen, Johnathan M. Bardsley, Yuqiu Dong, Nicolai A. B. Riis, Felipe Uribe



EIT reconstruction using virtual X-rays and machine learning

Siiri Inkeri Rautio



Frequentist Ensemble Kalman Filter

Maia Tienstra, Sebastian Reich



Investigation of the effects of Cowling approximation on adiabatic wave propagation in helioseismology

Hélène Barucq, Lola Chabat, Florian Faucher, Damien Fournier, Ha Pham



Dual-grid parameter choice method for total variation regularised image deblurring

Yiqiu Dong, Markus Juvonen, Matti Lassas, Ilmari Pohjola, Samuli Siltanen



Geodesic slice sampling on the sphere

Mareike Hasenpflug, Michael Habeck, Shantanu Kodgirwar, Daniel Rudolf



Gibbsian Polar Slice Sampling

Philip Schär, Michael Habeck, Daniel Rudolf



Hybrid knowledge and data-driven approaches for DOT reconstruction in medical imaging

Alessandra Serianni



Inverse Level-Set Problems for Capturing Calving Fronts

Daniel Abele, Angelika Humbert



Microlocal analysis of inverse scattering problems

Gregory Samelsohn



Microlocal Analysis of Multistatic Synthetic Aperture Radar Imaging

David McMahon, Clifford Nolan



Revealing Functional Substructure of Retinal Ganglion Cell Receptive Fields Using Tomography-Based Stimulation

Steffen Krüppel, Tim Gollisch



Non-stationary hyperspectral unmixing with learnt regularization

Julia Marie Lascar



Reduced Order Methods for Linear Gaussian Bayesian Inverse Problems on separable Hilbert Spaces

Giuseppe Carere, Han Cheng Lie



GAN-based motion correction in MRI

Mathias Simon Feinler, Bernadette Hahn



Dynamic Computerized Tomography using Inexact Models and Data-driven Motion Detection

Gesa Sarnighausen, Anne Wald



Phase retrieval beyond the homogeneous object approximation in X-ray holographic imaging

Jens Lucht, Leon Merten Lohse, Simon Huhn, Tim Salditt



Reconstruction of active forces generated by actomyosin networks

Emily Klass, Anne Wald



Reconstruction of the potential in a hyperbolic equation in dimension 3

Faguèye Ndiaye Sylla, Mouhamadou Ngom, Mariama Ndiaye, Diaraf Seck



Compensating motion and model inexactness in nano-CT

Björn Ehlers, Anne Wald



Combining Non-Data-Adaptive Transforms For OCT Image Denoising By Iterative Basis Pursuit

Raha Razavi, Hossein Rabbani, Gerlind Plonka



Iterated Arnoldi-Tikhonov method

Davide Bianchi, Marco Donatelli, Davide Furchì, Lothar Reichel



Measurement and analysis strategies for EUV pump-probe spectroscopic imaging

Gijsbert Simon Matthijs Jansen, Hannah Strauch, Thorsten Hohage, Stefan Mathias

3:00pm
-
5:30pm
Exc: Excursions
Location: Forum des Wissens
6:00pm
-
10:00pm
CD: Evening Talk with Dinner
Location: Alte Mensa
Chair: Thorsten Hohage
 

Shaken, not Stirred! – James Bond in the Spotlight of Physics"

Metin Tolan

Date: Thursday, 07/Sept/2023
9:00am
-
9:50am
Pl 6: Plenary lecture
Location: ZHG 011
Chair: Fioralba Cakoni
 

Correlation-based imaging and inverse problems in helioseismology

Laurent Gizon

9:50am
-
10:40am
Pl 7: Plenary lecture
Location: ZHG 011
Chair: Elena Beretta
 

Always-Scattering, Non-Scattering, and Inverse Scattering

Jingni Xiao

10:40am
-
11:10am
C6: Coffee Break
Location: ZHG Foyer
11:10am
-
12:00pm
Pl 8: Plenary lecture
Location: ZHG 011
Chair: Axel Munk
 

High-dimensional non-linear Bayesian inverse problems

Richard Nickl

12:00pm
-
1:30pm
LB3: Lunch Break
Location: Mensa
1:30pm
-
3:30pm
CT04: Contributed talks
Location: VG2.104
Chair: Christian Aarset
 

Weighted sparsity regularization for estimating the source term in the potential equation

Ole Løseth Elvetun, Bjørn Fredrik Nielsen



Lipschitz stability for inverse source problems of waves on Lorentzian manifolds

Hiroshi Takase



Logarithmic stability and instability estimates for random inverse source problems

Philipp Ronald Mickan, Thorsten Hohage



Combined EEG/MEG source analysis for reconstructing the epileptogenic zone in focal epilepsy

Carsten H. Wolters, Frank Neugebauer, Sampsa Pursiainen, Martin Burger, Jörg Wellmer, Stefan Rampp

CT05: Contributed talks
Location: VG2.105
Chair: Tram Nguyen
 

Quaternary image decomposition with cross-correlation-based multi-parameter selection

Laura Girometti, Martin Huska, Alessandro Lanza, Serena Morigi



Heuristic parameter choice from local minimum points of the quasioptimality function for the class of regularization methods

Uno Hämarik, Toomas Raus



Choice of the regularization parameter in case of over- or underestimated noise level of data

Toomas Raus



Multi-Penalty TV Regularisation for Image Denoising: A Study

Kemal Raik

CT06: Contributed talks
Location: VG2.107
Chair: Milad Karimi
 

$L^1$-data fitting for Inverse Problems with subexponentially-tailed data

Kristina Meth, Frank Werner



Globally Convergent Convexification Method for Coefficient Inverse Problems for Three Equations

Mikhail Klibanov



On modeling and regularization of piezoelectric inverse problems using all-at-once and reduced approaches

Raphael Kuess



Solution of the fractional order differential equation for Laplace transform of a boundary functional of a semi-Markov process using inverse Laplace transform

Elshan Ibayev

MS05 2: Numerical meet statistical methods in inverse problems
Location: VG2.102
Chair: Martin Hanke
Chair: Markus Reiß
Chair: Frank Werner
 

Utilising Monte Carlo method for light transport in the inverse problem of quantitative photoacoustic tomography

Tanja Tarvainen, Niko Hänninen, Aki Pulkkinen, Simon Arridge



Discretisation-adaptive regularisation via frame decompositions

Tim Jahn



Operator Learning Meets Inverse Problems

Nicholas H Nelsen, Maarten V de Hoop, Nikola B Kovachki, Andrew M Stuart



UNLIMITED: The UNiversal Lepskii-Inspired MInimax Tuning mEthoD

Housen Li, Frank Werner

MS06 2: Inverse Acoustic and Electromagnetic Scattering Theory - 30 years later
Location: VG3.103
Chair: Fioralba Cakoni
Chair: Houssem Haddar
 

Nonlinearity parameter imaging in the frequency domain

Barbara Kaltenbacher, William Rundell



The Lippmann-Schwinger Lanczos algorithm for inverse scattering.

Justin Baker, Elena Cherkaev, Vladimir Druskin, Shari Moskow, Mikhail Zaslavsky



Analysis of topological derivative for qualitative defect imaging using elastic waves

Marc Bonnet

MS10 1: Optimization in Inverse Scattering: from Acoustics to X-rays
Location: VG1.103
Chair: Radu Ioan Bot
Chair: Russell Luke
 

Numerical Linear Algebra Networks for Solving Linear Inverse Problems

Otmar Scherzer



Regularization by Randomization: The Case of Partially Separable Optimization

Russell Luke



Fast convex optimization via closed-loop time scaling of gradient dynamics

Hedy Attouch, Radu Ioan Bot, Dang-Khoa Nguyen



Fast Optimistic Gradient Descent Ascent method in continuous and discrete time

Radu Ioan Bot, Ernö Robert Csetnek, Dang-Khoa Nguyen

MS16 1: Wave propagation and quantitative tomography
Location: VG0.111
Chair: Leonidas Mindrinos
Chair: Leopold Veselka
 

Phase-contrast THz-CT for non-destructive testing

Simon Hubmer, Ronny Ramlau



Diffraction tomography for a generalized incident beam wave

Noemi Naujoks



Bias-free localizations in cryo-single molecule localization microscopy

Fabian Hinterer



Uncertainty-aware blob detection in astronomical imaging

Fabian Parzer, Prashin Jethwa, Alina Boecker, Mayte Alfaro-Cuello, Otmar Scherzer, Glenn van de Ven

MS20 1: Recent advances in inverse problems for elliptic and hyperbolic equations
Location: VG3.104
Chair: Ru-Yu Lai
 

Determining a nonlinear hyperbolic system with unknown sources and nonlinearity

Yi-Hsuan Lin



Uniqueness in an inverse problem of fractional elasticity

Giovanni Covi



Calderon problem for elliptic systems via complex ray transform

Mihajlo Cekic



Asymptotics Applied to Small Volume Inverse Shape Problems

Isaac Harris

MS24 1: Learned Regularization for Solving Inverse Problems
Location: VG1.101
Chair: Johannes Hertrich
Chair: Sebastian Neumayer
 

The Power of Patches for Training Normalizing Flows

Fabian Altekrüger, Alexander Denker, Paul Hagemann, Johannes Hertrich, Peter Maass, Gabriele Steidl



Trust your source: quantifying source condition elements for variational regularisation methods

Martin Benning, Tatiana Bubba, Luca Ratti, Danilo Riccio



Plug-and-Play image reconstruction is a convergent regularization method

Andrea Ebner, Markus Haltmeier



Provably Convergent Plug-and-Play Quasi-Newton Methods

Hong Ye Tan, Subhadip Mukherjee, Junqi Tang, Carola-Bibiane Schönlieb

MS26 2: Trends and open problems in cryo electron microscopy
Location: VG3.102
Chair: Carlos Esteve-Yague
Chair: Johannes Schwab
 

High Dimensional Covariance Estimation in Cryo-EM

Marc Aurèle Gilles, Amit Singer



Bayesian random tomography

Michael Habeck



Advancements and New Questions in Analysing the Geometry of Molecular Conformations in Cryo-EM

Roy R. Lederman



Optimal transport: a promising tool for cryo-electron microscopy

Amit Moscovich

MS30 2: Inverse Problems on Graphs and Machine Learning
Location: VG2.103
Chair: Emilia Lavie Kyllikki Blåsten
Chair: Matti Lassas
Chair: Jinpeng Lu
 

Deep Invertible Approximation of Topologically Rich Maps between Manifolds

Michael Puthawala, Matti Lassas, Ivan Dokmanic, Pekka Pankka, Maarten de Hoop



Some inverse problems on graphs with internal functionals

Fernando Guevara Vasquez, Guang Yang



Imaging water supply pipes using pressure waves

Emilia Lavie Kyllikki Blåsten, Fedi Zouari, Moez Louati, Mohamed S. Ghidaoui



Recontructing Interactions from Dynamics

Ivan Dokmanic, Liming Pan, Cheng Shi

MS32 2: Parameter identification in time dependent partial differential equations
Location: VG1.104
Chair: Barbara Kaltenbacher
Chair: William Rundell
 

On the identification of cavities in a nonlinear diffusion-reaction model arising from cardiac electrophysiology

Elena Beretta, Andrea Aspri, Elisa Francini, Dario Pierotti, Sergio Vessella



Identification of the electric potential of the time-fractional Schrödinger équation by boundary measurement

Éric Soccorsi



The Recovery of Coefficients in Wave Equations from Time-trace Data

Barbara Kaltenbacher, William Rundell

MS33 2: Quantifying uncertainty for learned Bayesian models
Location: VG1.105
Chair: Marta Malgorzata Betcke
Chair: Martin Holler
 

Calibration-Based Probabilistic Error Bounds for Inverse Problems in Imaging

Martin Zach, Andreas Habring, Martin Holler, Dominik Narnhofer, Thomas Pock



Posterior-Variance-Based Error Quantification for Inverse Problems in Imaging

Dominik Narnhofer, Andreas Habring, Martin Holler, Thomas Pock



How to sample from a posterior like you sample from a prior

Babak Maboudi Afkham, Matthias Chung, Julianne Chung



Uncertainty Quantification for Computed Tomography via the Linearised Deep Image Prior

Riccardo Barbano

MS36 1: Advances in limited-data X-ray tomography
Location: VG3.101
Chair: Jakob Sauer Jørgensen
Chair: Samuli Siltanen
 

Learned proximal operators meets unrolling: a deeply learned regularisation for limited angle tomography

Tatiana Alessandra Bubba



A new variational appraoch for limited data reconstructions in x-ray tomography

Jürgen Frikel



Material Decomposition Techniques for Spectral Computed Tomography

Francesca Bevilacqua, Yiqiu Dong, Jakob Sauer Jørgensen, Alessandro Lanza, Monica Pragiola



Bayesian approach to limited-data CT reconstruction for inspection of subsea pipes

Jakob Sauer Jørgensen

MS37 1: Passive imaging in terrestrial and extra-terrestrial seismology
Location: VG1.102
Chair: Florian Faucher
Chair: Damien Fournier
 

Source-free seismic imaging with reciprocity-gap misfit criterion.

Florian Faucher



Improving our Understanding of Jupiter’s and Saturn’s Interior Structure

Burkhard Militzer



Full-Waveform Inversion and Reverse-Time Migration in Earthquake and Exploration Seismology

Frederik J Simons, Qiancheng Liu, Zhendong Zhang, Zhaolun Liu, Etienne Bachmann, Alex L. Burky, Congyue Cui, Jessica C.E. Irving, Jeroen Tromp



Passive seismic body waves imaging for the deep Earth.

Michel Campillo

MS51 1: Analysis, numerical computation, and uncertainty quantification for stochastic PDE-based inverse problems
Location: VG1.108
Chair: Mirza Karamehmedovic
Chair: Faouzi Triki
 

Deep Learning Methods for Partial Differential Equations and Related Parameter Identification Problems

Derick Nganyu Tanyu, Jianfeng Ning, Tom Freudenberg, Nick Heilenkötter, Andreas Rademacher, Uwe Iben, Peter Maass



Fourier method for inverse source problem using correlation of passive measurements

Kristoffer Linder-Steinlein, Mirza Karamehmedović, Faouzi Triki



Feynman's inverse problem - an inverse problem for water waves

Adrian Kirkeby, Mirza Karamehmedović



Inference in Stochastic Differential Equations using the Laplace Appromixation

Uffe Høgsbro Thygesen

3:30pm
-
4:00pm
C7: Coffee Break
Location: ZHG Foyer
4:00pm
-
6:00pm
CT07: Contributed talks
Location: VG1.105
Chair: Christian Aarset
 

Accelerating MCMC for imaging science by using an implicit Langevin algorithm

Teresa Klatzer, Konstantinos Zygalakis, Paul Dobson, Marcelo Pereyra, Yoann Altmann



Quasi-Monte Carlo methods for Bayesian optimal experimental design problems governed by PDEs

Vesa Kaarnioja



Maximum marginal likelihood estimation of regularisation parameters in Plug & Play Bayesian estimation: Application to non-blind and semi-blind image deconvolution

Charlesquin Kemajou Mbakam, Marcelo Pereyra, Jean-Francois Giovannelli



Choosing observations to mitigate model error in Bayesian inverse problems

Nada Cvetkovic, Han Cheng Lie, Harshit Bansal, Karen Veroy--Grepl

CT08: Contributed talks
Location: VG2.105
Chair: Stephan F Huckemann
 

On Adaptive confidence Ellipsoids for sparse high dimensional linear models

Xiaoyang Xie



Sparsity-promoting hierarchical Bayesian inverse problems and uncertainty quantification

Jan Glaubitz



Recursive Update of Linearization Model Error for Conductivity Reconstruction from ICDI

Puyuan Mi, Yiqiu Dong, Bangti Jin



Fractional graph Laplacian for image reconstruction

Stefano Aleotti, Alessandro Buccini, Marco Donatelli

CT09: Contributed talks
Location: VG2.107
Chair: Tram Nguyen
 

Diffraction Tomography: Elastic parameters reconstructions

Bochra Mejri, Otmar Scherzer



Photoacoustic and Ultrasonic Tomography for Breast Imaging

Felix Lucka



One-step estimation of spectral optical parameters in quantitative photoacoustic tomography

Miika Suhonen, Aki Pulkkinen, Tanja Tarvainen



Stable reconstruction of anisotropic conductivity in magneto-acoustic tomography with magnetic induction

Niall Donlon

MS05 3: Numerical meet statistical methods in inverse problems
Location: VG2.102
Chair: Martin Hanke
Chair: Markus Reiß
Chair: Frank Werner
 

Bayesian hypothesis testing in statistical inverse problems

Remo Kretschmann, Frank Werner



Predictive risk regularization for Gaussian and Poisson inverse problems

Federico Benvenuto



Reconstruction of active forces in actomyosin droplets

Anne Wald, Emily Klass



Learning Linear Operators

Nicole Mücke

MS06 3: Inverse Acoustic and Electromagnetic Scattering Theory - 30 years later
Location: VG3.103
Chair: Fioralba Cakoni
Chair: Houssem Haddar
 

The direct and inverse scattering problem of obliquely incident electromagnetic waves by an inhomogeneous infinitely long cylinder

Drossos Gintides, Leonidas Mindrinos, Sotirios Giogiakas



Transmission Eigenvalues for a Conductive Boundary

Isaac Harris



Generalized Sampling method

Lorenzo Audibert

MS10 2: Optimization in Inverse Scattering: from Acoustics to X-rays
Location: VG1.103
Chair: Radu Ioan Bot
Chair: Russell Luke
 

PAC-Bayesian Learning of Optimization Algorithms

Peter Ochs



Accelerated Griffin-Lim algorithm: A fast and provably convergent numerical method for phase retrieval

Rossen Nenov, Dang-Khoa Nguyen, Radu Ioan Bot, Peter Balazs



Audio Inpainting

Peter Balazs, Georg Tauböck, Shristi Rajbamshi, Nicki Holighaus



Damage detection by guided ultrasonic waves and uncertainty quantification

Dirk Lorenz, Nanda Kishore Bellam Muralidhar, Carmen Gräßle, Natalie Rauter, Andrey Mikhaylenko, Rolf Lammering

MS16 2: Wave propagation and quantitative tomography
Location: VG0.111
Chair: Leonidas Mindrinos
Chair: Leopold Veselka
 

Source Reconstruction from Partial Boundary Data in Radiative Transport

Kamran Sadiq



Solving Cauchy problems using semi-discretization techniques and BIE

Leonidas Mindrinos



Quantitative Parameter Reconstruction from Optical Coherence Tomographic Data

Leopold Veselka, Wofgang Drexler, Peter Elbau, Lisa Krainz



Augmented total variation regularization in imaging inverse problems

Nicholas E. Protonotarios, Carola-Bibiane Schönlieb, Nikolaos Dikaios, Antonios Charalambopoulos

MS20 2: Recent advances in inverse problems for elliptic and hyperbolic equations
Location: VG3.104
Chair: Ru-Yu Lai
 

Fixed angle inverse scattering for velocity

Rakesh Rakesh



Inverse Problems for Some Nonlinear Schrodinger Equations

Ting Zhou

MS24 2: Learned Regularization for Solving Inverse Problems
Location: VG1.101
Chair: Johannes Hertrich
Chair: Sebastian Neumayer
 

Learning Sparsifying Regularisers

Sebastian Neumayer



Shared Prior Learning of Energy-Based Models for Image Reconstruction

Thomas Pinetz, Erich Kobler, Thomas Pock, Alexander Effland



Gradient Step and Proximal denoisers for convergent plug-and-play image restoration.

Samuel Hurault, Arthur Leclaire, Nicolas Papadakis

MS26 3: Trends and open problems in cryo electron microscopy
Location: VG3.102
Chair: Carlos Esteve-Yague
Chair: Johannes Schwab
 

Stochastic optimization for high-resolution refinement in cryo-EM

Bogdan Toader, Marcus A. Brubaker, Roy R. Lederman



Fast Principal Component Analysis for Cryo-EM Images

Nicholas Marshall, Oscar Mickelin, Yunpeng Shi, Amit Singer



Reconstructing Molecular Flexibility in Cryogenic Electron Microscopy

Johannes Schwab, Dari Kimanius, Sjors Scheres

MS30 3: Inverse Problems on Graphs and Machine Learning
Location: VG2.103
Chair: Emilia Lavie Kyllikki Blåsten
Chair: Matti Lassas
Chair: Jinpeng Lu
 

Learned Solvers for Forward and Backward Image Flow Schemes

Simon Robert Arridge, Andreas Selmar Hauptmann, Giuseppe di Sciacca, Wiryawan Mehanda

MS36 2: Advances in limited-data X-ray tomography
Location: VG3.101
Chair: Jakob Sauer Jørgensen
Chair: Samuli Siltanen
 

Approaches to the Helsinki Tomography Challenge 2022

Clemens Arndt, Alexander Denker, Sören Dittmer, Johannes Leuschner, Judith Nickel



Directional regularization with the Core Imaging Library for limited-angle CT in the Helsinki Tomography Challenge 2022

Edoardo Pasca, Jakob Jørgensen, Evangelos Papoutsellis, Laura Murgatroyd, Gemma Fardell



VAEs with structured image covariance as priors to inverse imaging problems

Margarat Duff



Limited-Angle Tomography Reconstruction via Deep Learning on Synthetic Data

Thomas Germer, Jan Robine, Sebastian Konietzny, Stefan Harmeling, Tobias Uelwer

MS37 2: Passive imaging in terrestrial and extra-terrestrial seismology
Location: VG1.102
Chair: Florian Faucher
Chair: Damien Fournier
 

Reduced order model approach for active and passive imaging with waves

Liliana Borcea, Josselin Garnier, Alexander Mamonov, Jorn Zimmerling



Three-dimensional random wave coupling along a boundary with scaling representative of Mars' crust, and an associated inverse problem

Maarten Valentijn de Hoop, Josselin Garnier, Knut Solna



Frequency-Difference Backprojection of Earthquakes

Jing Ci Neo, Wenyuan Fan, Yihe Huang, David R. Dowling



Quantitative passive imaging in helioseismology

Björn Müller

MS46 1: Inverse problems for nonlinear equations
Location: VG1.104
Chair: Lauri Oksanen
Chair: Teemu Kristian Tyni
 

Weakly nonlinear geometric optics and inverse problems for hyperbolic nonlinear PDEs

Plamen Stefanov



Identification of nonlinear effects in X-ray tomography

Yiran Wang



Inverse problems for non-linear hyperbolic equations and many-to-one scattering relations

Matti Lassas



Inverse problems for nonlinear elliptic PDE

Katya Krupchyk

MS48: Robustness and reliability of Deep Learning for noisy medical imaging
Location: VG2.104
Chair: Alessandro Benfenati
Chair: Elena Morotti
 

The graphLa+ method: a dynamic regularization based on the graph Laplacian

Davide Bianchi



Investigating the human body by light: the challenge of problem inversion

Paola Causin, Alessandro Benfenati



Investigating the Human Body by Light: Neural Networks for Data-Driven and Physics-Driven Approches

Alessandro Benfenati, Paola Causin



Medical image reconstruction in realistic scenarios: what to do if the ground-truth is missing?

Davide Evangelista, Elena Morotti, Elena Loli Piccolomini

MS51 2: Analysis, numerical computation, and uncertainty quantification for stochastic PDE-based inverse problems
Location: VG1.108
Chair: Mirza Karamehmedovic
Chair: Faouzi Triki
 

Spectral properties of radiation for the Helmholtz equation with a random coefficient

Mirza Karamehmedovic, Kristoffer Linder-Steinlein



Optimization under uncertainty for the Helmholtz equation with application to photonic nanojets configuration

Amal Alghamdi, Peng Chen, Mirza Karamehmedovic



Posterior consistency for Bayesian inverse Problems with piecewise constant inclusions

Babak Maboudi Afkham., Kim Knudsen, Aksel Rasmussen, Tanja Tarvainen



On uncertainty quantification for nonlinear inverse problems

Kui Ren

Date: Friday, 08/Sept/2023
9:00am
-
9:50am
Pl 9: Plenary lecture
Location: ZHG 011
Chair: Matti Lassas
 

Inverse problems for wave equations

Ali Feizmohammadi

9:50am
-
10:40am
Pl 10: Plenary lecture
Location: ZHG 011
Chair: William Rundell
 

On inverse problems for piezoelectric equations

Xiang Xu

10:40am
-
11:10am
C8: Coffee Break
Location: ZHG Foyer
11:10am
-
12:00pm
Pl 11: Plenary lecture
Location: ZHG 011
Chair: Lauri Oksanen
 

Reconstruction of spacetime structures in general relativity and Lorentzian geometry

Yiran Wang

12:00pm
-
1:30pm
LB4: Lunch Break
Location: Mensa
1:30pm
-
3:30pm
CT10: Contributed talks
Location: VG3.102
Chair: Gerlind Plonka
 

Exact Parameter Identification in PET Pharmacokinetic Modeling Using the Irreversible Two Tissue Compartment Model

Erion Morina, Martin Holler, Georg Schramm



Regularized Maximum Likelihood Estimation for the Random Coefficients Model

Fabian Dunker, Emil Mendoza, Marco Reale



Adaptive estimation of $\alpha-$generalized random fields for statistical linear inverse problems with repeated measurements

Mihaela Pricop-Jeckstadt



The Range of Projection Pair Operators

Richard Huber, Rolf Clackdoyle, Laurent Desbat

CT11: Contributed talks
Location: VG1.108
Chair: Housen Li
 

Extension and convergence of sixth order Jarratt-type method

Suma Panathale Bheemaiah



Optimal design for aeroacoustics with correlation data

Christian Aarset, Thorsten Hohage



Source separation for Electron Paramagnetic Resonance Imaging

Mehdi Boussâa, Rémy Abergel, Sylvain Durand, Yves Frapart

CT12: Contributed talks
Location: VG2.104
Chair: Frank Werner
 

Designing an algorithm for low-dose Poisson phase retrieval

Benedikt Diederichs, Frank Filbir, Patricia Römer



ADMM methods for Phase Retrieval and Ptychography

Albert Fannjiang



Phase retrieval in the wild: In situ optimized reconstruction for X-ray in-line holography

Johannes Dora, Johannes Hagemann, Silja Flenner, Christian Schroer, Tobias Knopp

MS06 4: Inverse Acoustic and Electromagnetic Scattering Theory - 30 years later
Location: VG3.103
Chair: Fioralba Cakoni
Chair: Houssem Haddar
 

Nonlinear integral equations for 3D inverse acoustic and electromagnetic scattering

Olha Ivanyshyn Yaman



Inverse scattering in a partially embedded waveguide

Laurent Bourgeois, Jean-François Fritsch, Arnaud Recoquillay



Revisiting the Hybrid method for the inverse scattering transmission problem

Pedro Serranho, João Paixão



Single Mode Multi-frequency Factorization Method for the Inverse Source Problem in Acoustic Waveguides

Shixu Meng

MS07 1: Regularization for Learning from Limited Data: From Theory to Medical Applications
Location: VG1.101
Chair: Markus Holzleitner
Chair: Sergei Pereverzyev
Chair: Werner Zellinger
 

Regularized Radon - Nikodym differentiation and some of its applications

Duc Hoan Nguyen, Sergei Pereverzyev, Werner Zellinger



Explicit error rate results in the context of domain generalization

Markus Holzleitner



Addressing Parameter Choice Issues in Unsupervised Domain Adaptation by Aggregation

Marius-Constantin Dinu



Convex regularization in statistical inverse learning problems

Luca Ratti, Tatiana A. Bubba, Martin Burger, Tapio Helin

MS08 1: Integral Operators in Potential Theory and Applications
Location: VG2.102
Chair: Doosung Choi
Chair: Mikyoung Lim
Chair: Stephen Shipman
 

On the identification of small anomaly via MUSIC algorithm without background information

Won-Kwang Park



Construction of inclusions with vanishing generalized polarization tensors by imperfect interfaces

Doosung Choi, Mikyoung Lim



Spectral theory of surface plasmons in the nonlocal hydrodynamic Drude model

Hyundae Lee, Matias Ruiz, Sanhyeon Yu



Numerical computation of Laplacian eigenvalues based on the layer potential formulation

Mikyoung Lim, Jiho Hong

MS09: Forward and inverse domain uncertainty quantification
Location: VG1.102
Chair: Vesa Kaarnioja
Chair: Claudia Schillings
 

Isogeometric multilevel quadrature for forward and inverse random acoustic scattering

Jürgen Dölz, Helmut Harbrecht, Carlos Jerez-Hanckes, Michael Multerer



Evolving surfaces driven by stochastic PDEs

Annika Lang



Multilevel domain UQ in computational electromagnetics

Jakob Zech, Ruben Aylwin, Carlos Jerez-Hanckes, Christoph Schwab



Advantages of locality in random field representations for shape uncertainty quantification

Laura Scarabosio, Wouter van Harten

MS10 3: Optimization in Inverse Scattering: from Acoustics to X-rays
Location: VG1.103
Chair: Radu Ioan Bot
Chair: Russell Luke
 

Automated tight Lyapunov analysis for first-order methods

Manu Upadhyaya, Sebastian Banert, Adrien Taylor, Pontus Giselsson



Learned SVD for limited data inversion in PAT and X-ray CT

Markus Haltmeier, Johannes Schwab, Stephan Antholzer



Multiscale hierarchical decomposition methods for ill-posed problems

Tobias Wolf, Elena Resmerita, Stefan Kindermann



Scalable moment relaxations for graph-structured problems with values in a manifold: An optimal transport approach

Robin Kenis, Emanuel Laude, Panagiotis Patrinos

MS13 1: Stochastic iterative methods for inverse problems
Location: VG0.111
Chair: Tim Jahn
 

Beating the Saturation of the Stochastic Gradient Descent for Linear Inverse Problems

Bangti Jin, Zehui Zhou, Jun Zou



Early stopping of untrained convolutional networks

Tim Jahn, Bangti Jin



Stochastic mirror descent method for linear ill-posed problems in Banach spaces

Qinian Jin



Early stopping for spectral filter estimators regularized by projection

Alain Celisse, Samy Clementz

MS31 1: Inverse Problems in Elastic Media
Location: VG3.104
Chair: Andrea Aspri
Chair: Ekaterina Sherina
 

Hybrid Inverse Problems for Nonlinear Elasticity

Alden Waters, Hugo Carrillo-Lincopi



Quantitative reconstruction of viscoelastic media with attenuation model uncertainty.

Florian Faucher, Otmar Scherzer



An Intensity-based Inversion Method for Quasi-Static Optical Coherence Elastography

Ekaterina Sherina, Lisa Krainz, Simon Hubmer, Wolfgang Drexler, Otmar Scherzer



On the identification of cavities and inclusions in linear elasticity with a phase-field approach

Elena Beretta, Andrea Aspri, Marco Verani, Elisabetta Rocca, Cecilia Cavaterra

MS41 1: Geomathematics
Location: VG3.101
Chair: Joonas Ilmavirta
 

Geodesic X-ray tomography on manifolds of low regularity

Antti Kaleva Kykkänen



Invariance of the elastic wave equation in the context of Finsler geometry

Hjørdis Amanda Schlüter



Geometrization of inverse problems in seismology

Joonas Ilmavirta



Reconstruction of anisotropic stiffness tensors using algebraic geometry

Maarten de Hoop, Joonas Ilmavirta, Matti Lassas, Anthony Varilly-Alvarado

MS46 2: Inverse problems for nonlinear equations
Location: VG1.104
Chair: Lauri Oksanen
Chair: Teemu Kristian Tyni
 

Inverse source problems for nonlinear equations

Yi-Hsuan Lin



Inverse problem for the minimal surface equation and nonlinear CGO calculus in dimension 2

Tony Liimatainen



Inverse scattering problems for semi-linear wave equations on manifolds

Teemu Tyni, Spyros Alexakis, Hiroshi Isozaki, Matti Lassas



Determining a Lorentzian metric from the source-to-solution map for the relativistic Boltzmann equation

Tracey Balehowsky, Antti Kujanpaa, Matti Lassas, Tony Liimatainen



Determining Lorentzian manifold from non-linear wave observation at a single point

Medet Nursultanov

MS50 1: Mathematics and Magnetic Resonance Imaging
Location: VG1.105
Chair: Kristian Bredies
Chair: Christian Clason
Chair: Martin Uecker
 

Deep learning MR image reconstruction and task-based evaluation

Florian Knoll, Jinho Kim, Marc Vornehm, Vanya Saksena, Zhengguo Tan, Bernhard Kainz



Learning Fourier sampling schemes for MRI by density optimization

Alban Gossard, Frédéric de Gournay, Pierre Weiss



Acceleration strategies for Magnetic Resonance Spin Tomography in Time-Domain (MR‐STAT) reconstructions

Hongyan Liu, Oscar van der Heide, Mandija Stefano, Versteeg Edwin, Fuderer Miha, Cornelis A.T. van den Berg, Alessandro Sbrizzi



Learning Spatio-Temporal Regularization Parameter-Maps for Total Variation-Minimization Reconstruction in Dynamic Cardiac MRI

Andreas Kofler, Fabian Altekrüger, Fatima Antarou Ba, Christoph Kolbitsch, Evangelos Papoutsellis, David Schote, Clemens Sirotenko, Felix Frederik Zimmermann, Kostas Papafitsoros

MS59 1: Advanced Reconstruction and Phase Retrieval in Nano X-ray Tomography
Location: VG2.103
Chair: Tim Salditt
Chair: Anne Wald
 

Resolution of reconstruction from discrete Radon transform data

Alexander Katsevich



Deep Learning for Reconstruction in Nano CT

Alice Oberacker, Anne Wald, Bernadette Hahn-Rigaud, Tobias Kluth, Johannes Leuschner, Maximilian Schmidt, Thomas Schuster



Learned post-processing approaches for nano-CT reconstruction

Tom Lütjen, Fabian Schönfeld, Alice Oberacker, Maximilian Schmidt, Johannes Leuschner, Tobias Kluth, Anne Wald



X-ray phase and dark-field retrieval from propagation-based images, via the Fokker-Planck Equation

Kaye Susannah Morgan, Thomas Leatham, Mario Beltran, Jannis Ahlers, Samantha Alloo, Marcus Kitchen, Konstantin Pavlov, David Paganin

3:30pm
-
4:00pm
C9: Coffee Break
Location: ZHG Foyer
4:00pm
-
6:00pm
CT13: Contributed talks
Location: VG2.105
Chair: Martin Halla
 

Joint Born Inversion of Acoustic and Electromagnetic Wave fields

Anne V. de Wit, Tristan van Leeuwen, Felix Lucka, Dirk J. Verschuur, Koen W.A. van Dongen



Imaging of Gravity Dam-Foundation contact by a shape optimization method using non-destructive seismic waves

Mohamed Aziz Boukraa, Lorenzo Audibert, Marcella Bonazzoli, Houssem Haddar, Denis Vautrin



Structure inversions for sound speed differences in solar-like stars

Lynn Buchele, Earl Bellinger, Sarbani Basu, Saskia Hekker



Detection of geophysical structures using optical flow methodologies for potential data

Jose Antonio Ramoz León, Emilia Fregoso Becerra, Abel Palafox González

CT14: Contributed talks
Location: VG2.106
Chair: Housen Li
 

On accuracy and existence of approximate decoders for ill-posed inverse problems

Nina Maria Gottschling, Paolo Campodonico, Vegard Antun, Anders C. Hansen



Inverse problems and deep learning in epidemiology and social processes

Olga Krivorotko, Sergey Kabanikhin, Viktoriya Petrakova, Nikolay Zyatkov



Approximation with neural networks in Sobolev setting

Ahmed Abdeljawad

MS07 2: Regularization for Learning from Limited Data: From Theory to Medical Applications
Location: VG1.101
Chair: Markus Holzleitner
Chair: Sergei Pereverzyev
Chair: Werner Zellinger
 

Imbalanced data sets in a magnetic resonance imaging case study of preterm neonates: a strategy for identifying informative variables

Sergiy Pereverzyev Jr.



On Approximation for Multi-Source Domain Adaptation in the Space of Copulas

Priyanka Roy, Bernhard Moser, Werner Zellinger, Susanne Saminger-Platz



Learning segmentation on unlabeled MRI data using labeled CT data

Leon Frischauf



Parameter choice in distance-regularized domain adaptation

Werner Zellinger, Sergei V. Pereverzyev

MS08 2: Integral Operators in Potential Theory and Applications
Location: VG2.102
Chair: Doosung Choi
Chair: Mikyoung Lim
Chair: Stephen Shipman
 

Recovering an elastic inclusion using the shape derivative of the elastic moment tensors

Daehee Cho, Mikyoung Lim



Some aspects of the spectrum of the Neumann-Poincaré operator

Stephen Shipman



Spectrum of the Neumann-Poincaré operator on thin domains

Kazunori Ando, Hyeonbae Kang, Miyanishi Yoshihisa

MS10 4: Optimization in Inverse Scattering: from Acoustics to X-rays
Location: VG1.103
Chair: Radu Ioan Bot
Chair: Russell Luke
 

Phase retrieval from overexposed PSFs: theory and practice

Oleg Alexandrovich Soloviev



Tensor-free algorithms for lifted quadratic and bilinear inverse problems

Robert Beinert, Kristian Bredies



Implicit regularization via re-parametrization

Cesare Molinari

MS13 2: Stochastic iterative methods for inverse problems
Location: VG0.111
Chair: Tim Jahn
 

From inexact optimization to learning via gradient concentration

Bernhard Stankewitz, Nicole Mücke, Lorenzo Rosasco



Principal component analysis in infinite dimensions

Martin Wahl



Learning Linear Operators

Nicole Mücke



SGD for select inverse problems in Banach spaces

Zeljko Kereta, Bangti Jin

MS31 2: Inverse Problems in Elastic Media
Location: VG3.104
Chair: Andrea Aspri
Chair: Ekaterina Sherina
 

An inverse problem for the porous medium equation

Catalin Ion Carstea, Tuhin Ghosh, Gen Nakamura



Comparison of variational formulations for the direct solution of an inverse problem in linear elasticity

Paul E. Barbone, Olalekan Babaniyi

MS41 2: Geomathematics
Location: VG3.101
Chair: Joonas Ilmavirta
 

Inverse scattering: Regularized Lanczos method for the Lippmann-Schwinger equation

Justin Baker, Elena Cherkaev, Vladimir Druskin, Shari Moskow, Mikhail Zaslavsky



Travel Time Tomography in Transversely Isotropic Elasticity via Microlocal Analysis

Yuzhou Zou



An inverse source problem for the elasto-gravitational equations

Lorenzo Baldassari, Maarten V. de Hoop, Elisa Francini, Sergio Vessella

MS46 3: Inverse problems for nonlinear equations
Location: VG1.104
Chair: Lauri Oksanen
Chair: Teemu Kristian Tyni
MS50 2: Mathematics and Magnetic Resonance Imaging
Location: VG1.105
Chair: Kristian Bredies
Chair: Christian Clason
Chair: Martin Uecker
 

MRI Pulse Design via discrete-valued optimal control

Christian Clason



Null Space Networks for undersampled Fourier data

Markus Haltmeier



Deep Learning Approaches for Non-Linear Inverse Problems in MRI Reconstruction

Moritz Blumenthal, Guanxiong Luo, Martin Schilling, Martin Uecker



Mathematical Methods in Parallel MRI

Benjamin Kocurov

MS59 2: Advanced Reconstruction and Phase Retrieval in Nano X-ray Tomography
Location: VG2.103
Chair: Tim Salditt
Chair: Anne Wald
 

Multi-stage Deep Learning Artifact Reduction for Computed Tomography

Jiayang Shi, Daan Pelt, Joost Batenburg



Deep learning for phase retrieval from Fresnel diffraction patterns

Max Langer, Kannara Mom, Bruno Sixou



Time resolved and multi-resolution tomographic reconstruction strategies in practice.

Rajmund Mokso, Viktor Nikitin



Tomographic Reconstruction in X-ray Near-field Diffractive Imaging: from Laboratory $\mu$CT to Synchrotron Nano-Imaging

Tim Salditt

     

 
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