Research Training Group π³

Parameter Identification - Analysis, Algorithms, Implementations

Welcome to the Research Training Group π³

Mathematics can make even the most complex problems manageable by reducing them to the essential. For example, it develops high-dimensional and non-linear models to solve problems of parameter identification that occur in all areas of the natural sciences, life sciences and engineering as well as in industrial and economic applications.

In the graduate program "π³: Parameter Identification - Analysis, Algorithms, Implementations", PhD students concentrate on the interface between applied mathematics and computer science on questions of parameter identification, which are essentially formulated as high-dimensional minimization problems for suitable functionals.

Speaker

Prof. Dr. Dr. h.c. Peter Maaß

Center for Industrial Mathematics
+49 421 218 63801
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Coordination

Dr. Pascal Fernsel

Center for Industrial Mathematics
+49 421 218 63814
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Matthias Knauer

Study program

In the RTG the students are provided with plenty of time to work independently. In addition a structured study program equips the PhD students with the necessary mathematical knowledge and insights into the application areas.

Simon Arridge

Summer schools

Anually organized in turn by the PhD students of the different research areas, which brought to Bremen some of the most prominent researchers of the field and led to a highly interactive and stimulating exchange of ideas.

RTG Seminar

RTG Seminar

Bi-weekly platform for meeting amongst the PhD students and for regularly presenting the status of individual PhD thesis.

Autumn School Deep Learning and Inverse Problems

Scientific networking

Strengthening the communication skills of the PhD students, such that they are able to start creating their own research networks, is an important part of the qualification concept of the RTG π3.

Winter reatreat

Soft skills

Basic research and soft skills of the PhD students are developed, first of all, through the daily research work. Aditionally, a series of soft skills workshops are organized for the members of the RTG π3.

Ein Haufen Bücher.

Study groups

Consist of several PhD students working on related PhD topics, as a basis for in depth literature studies and detailed discussions of individual PhD topics.

Gender & Equal oportunities

The RTG π3 aims at providing an open minded, scientifically stimulating environment for its diverse group of doctoral students regardless of their ethnicity, nationality, origin, religion, gender identity, sexual orientation, socio-economic status, age or dis-/ability. This is also supported by our Soft Skills program which focuses on the topics of equal opportunity and awareness.

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Recent News

Louisa Kinzel
Research Training Group π³|

Louisa Kinzel - PhD completed!

Louisa Kinzel has successfully completed her doctorate. The title of the dissertation is "Unsupervised Deep Machine Learning Methods to Discriminate Icequakes in Seismological Data from Neumayer Station, Antarctica". Congratulations!


Gideon Klaila
Research Training Group π³|

Gideon Klaila - PhD completed!

Gideon Klaila has successfully completed his doctorate. The title of the dissertation is "The Persistence Transformation; A New Methodology of Topological Data Analysis". Congratulations!


Vladimir Vutov
Research Training Group π³|

Vladimir Vutov - PhD completed!

Vladimir Vutov has successfully completed his doctorate. The title of the dissertation is "Large-scale multiple testing under arbitrary covariance dependency and topological data analysis for mass spectrometry imaging applications". Congratulations!


Margareta Runge
Research Training Group π³|

Margareta Runge - PhD completed!

Margareta Runge has successfully completed her doctorate. The title of the dissertation is "Online Parameter Identification for Optimal Feedback Control of Nonlinear Dynamical Systems". Congratulations!


Kai Schäfer
Research Training Group π³|

Kai Schäfer - PhD completed!

Kai Schäfer has successfully completed his doctorate. The title of the dissertation is "Decomposition Methods for Parameter Identification and Bilevel Programming". Congratulations!


Johannes Leuschner
Research Training Group π³|

Johannes Leuschner - PhD completed!

Johannes Leuschner has successfully completed his doctorate. The title of the dissertation is "Deep Learning for Computed Tomography Reconstruction - Learned Methods, Deep Image and Uncertainty Estimation". Congratulations!


Methods Week in Statistics
Research Training Group π³|

Summer School 2023

The RTG Summer School 2023 took place at the University of Bremen.


Bücher liegen im Regal.
Research Training Group π³|

Phil Gralla - PhD completed!

Phil Gralla has successfully completed his doctorate. The title of the dissertation is "Tikhonov Functionals Incorporating Tolerances in Discrepancy Term for Inverse Problems". Congratulations!


Maximilian Schmidt
Research Training Group π³|

Maximilian Schmidt - PhD completed!

Maximilian Schmidt has successfully completed his doctorate. The title of the dissertation is "Hybrid Deep Learning - How Combining Data-Driven and Model-Based Approaches Solves Inverse Problems in Computed Tomography and Beyond". Congratulations!


Winter Retreat 2022
Research Training Group π³|

The winter retreat 2022 took place in Lingen

The RTG winter retreat 2022 took place from the 17th to the 19th of October together with the PhD students of the 2nd and 3rd cohort. The main workshop by Dr. Sardar M. Kohistani (Samin World) was related about intercultural competences.


Bücher liegen im Regal.
Research Training Group π³|

Anh-Tuan Hoang - PhD completed!

Anh-Tuan Hoang has successfully completed his doctorate. The title of the dissertation is "Statistische Methoden zur Replizierbarkeitsbewertung im Rahmen mehrstufiger Studien". Congratulations!


Pascal Fernsel
Research Training Group π³|

Pascal Fernsel - PhD completed!

Pascal Fernsel has successfully completed his doctorate. The title of the dissertation is "Nonnegative Matrix Factorization. Theory, Algorithms, and Applications". Congratulations!


Sören Schulze
Research Training Group π³|

Sören Schulze - PhD completed!

Sören Schulze has sucessfully completed his doctorate. The title of the dissertation is "Blind Source Separation in Single-Channel Polyphonic Music Recordings". Congratulations!


Jonathan von Schroeder
Research Training Group π³|

Jonathan von Schroeder - PhD completed!

Jonathan von Schroeder has successfully completed his doctorate. The title of the dissertation is "Non-Parametric Statistical Methods. Applications in MALDI Imaging and Finance". Congratulations!


Research Training Group π³|

Miriam Steinherr Zazo - PhD completed!

Miriam Steinherr Zazo has sucessfully completed her doctorate. The title of the dissertation is "Bifurcation Analysis for Systems with Piecewise Smooth Nonlinearity and Applications". Congratulations!


Bild Ilias Bougoudis
Research Training Group π³|

Ilias Bougoudis - PhD completed!

Ilias Bougoudis has sucessfully completed his doctorate in the working group of Prof. Burrows. Congratulations!


Winter Retreat 2021
Research Training Group π³|

The 2021 Winter retreat took place online

The RTG Winter Retreat 2021 took place on the 21st and 22nd of October. The main workshop was related with career planning in or outside academia.


Georgia Sfakianaki's defense
Research Training Group π³|

Georgia Sfakianaki - PhD completed!

Georgia Sfakianaki has successfully completed her doctorate with the title "Regularization of ill-posed inverse problems with tolerances and sparsity in parameter space". Congratulations!


Logo der Universität Bremen auf einer Glasscheibe.
Research Training Group π³|

Bremen Study Prize for Louisa Kinzel

Congratulations to Louisa for winning the Bremen Study Prize for her Master's thesis. Congratulations!


Logo Graduiertenkolleg
Research Training Group π³|

Next funding period was approved!

We are glad to announce that the DFG has approved a further funding period (until 2025) for the RTG π³. In total, 25 research training groups (including 10 new) will be funded.


Sören Dittmer
Research Training Group π³|

Sören Dittmer - PhD completed!

Sören Dittmer has succesfully completed his PhD on the topic "On deep learning applied to inverse problems - A chicken-and-egg problem". Congratulations!


Winter Retreat 2020
Research Training Group π³|

The 2020 Winter retreat took place online

Over the course of the 15th and 16th of October 2020, the Ph.D. students of the research training group π³ met for the annual winter retreat. The main goal for this retreat was getting together the complete 2nd cohort, since the last students joined the group as late as September.


Logo Graduiertenkolleg
Research Training Group π³|

New Coordinator of the RTG

Daniel Otero Baguer is the new coordinator of the RTG. Tobias Kluth was the coordinator for the first 4 years of the RTG and did an amazing job. Thank you Tobias!


Tobias Kluth
Research Training Group π³|

Tobias Kluth - Habilitation submitted

Tobias Kluth has submitted his habilitation with the title "Model-based to data-driven approaches for parameter identification and image reconstruction in the applied inverse problem of magnetic particle imaging".


Daniel Otero Baguer
Research Training Group π³|

Daniel Otero Baguer - PhD completed

Daniel Otero Baguer has successfully completed his doctorate on "Neural Networks for solving Inverse Problems with applications in Materials Science and Medical Imaging".


Code Sprint 2020
Research Training Group π³|

Summer School: Code Sprint 2020

We kindly want to draw your attention to one upcoming event of the research training group. A summer school on Code Sprint - Benchmarking Deep Learning based CT Image Reconstruction Methods is organized by Prof. Dr. Peter Maaß (ZeTeM, Bremen), Dr. Maureen van Eijnatten (CWI, Amsterdam), Poulami Gang


Christian Etmann
Research Training Group π³|

Christian Etmann - PhD completed

Christian Etmann has successfully completed his doctorate with the title "Double Backpropagation with Applications to Robustness and Saliency Map Interpretability"


Logo Graduiertenkolleg
Research Training Group π³|

Gender sensitive leadership workshop for PIs

In the framework of our Soft Skills program we held the gender sensitive leadership workshop for PIs. The course was given by Dr. Lisa Horvath (Universitäts- & Organisationsberatung, Graz).


Max Westphal
Research Training Group π³|

Max Westphal - PhD completed

Max Westphal has successfully completed his doctorate with the title "Model Selection and Evaluation in Supervised Machine Learning".


Research Training Group π³|

Guest talk: Dr. Martin Rasmussen

On December 02, 2019, Dr. Martin Rasmussen, Imperial College London, is visiting the research training group (invited by Miriam Steinherr). We cordially invite you to his talk titled: "Three reasons why additive noise does not destroy a pitchfork bifurcation"


Alexander Konschin
Research Training Group π³|

Alexander Konschin - PhD completed

Alexander Konschin has successfully completed his doctorate with the title "Direkte und inverse elektromagnetische Streuprobleme für lokal gestörte periodische Medien"


Jens Behrmann
Research Training Group π³|

Jens Behrmann - PhD completed

Jens Behrmann has successfully completed his doctorate with the title "Principles of Neural Network Architecture Design:Invertibility and Domain-Knowledge"


Thies Gerken
Research Training Group π³|

Thies Gerken - PhD completed

Thies Gerken has successfully completed his doctorate with the title "Dynamic Inverse Problems for Wave Phenomena"


Introduction to Deep Learning
Research Training Group π³|

ROMSOC Training Course - Introduction to Deep Learning

From 23.-27.09.2019 the ROMSOC training course "Introduction to Deep Learning" in the framework of the research project ROMSOC - Reduced Order Modelling, Simulation and Optimization of Coupled Systems was held at ZeTeM. The lecturers were Niv Haim from Weizmann Institute of Science and SagivTech Ltd


Autumn School
Research Training Group π³|

Autumn School: Deep Learning and Inverse Problems

We kindly want to draw your attention to one upcoming event of the research training group. The research area R3 organizes a autumn school on Deep Learning and Inverse Problems.


Saswati Saha
Research Training Group π³|

Saswati Saha - PhD completed

Saswati Saha has successfully completed his doctorate on "Multiple testing and modeling in dose-response studies"


Optimization of Dynamical Systems
Research Training Group π³|

Summer school: Optimization of Dynamical Systems

We kindly want to draw your attention to one upcoming event of the research training group. In the research area R2 a summer school on Optimization of Dynamical Systems is organized by Christof Büskens, Kathrin Flaßkamp, and Jens Rademacher.