Header Logo

ECMath Colloquium

The purpose of this biannual scientific colloquium is bringing together mathematicians, scientists, and engineers to enjoy a series of talks on one topical issue of current or emerging interest to several fields within mathematics. The colloquium intends to foster scientific communication within ECMath and beyond.

Upcoming Events


#4 ECMath Guest Colloquium on January 20, 2017 from 14:00 (s.t.) till 17:00

Topic: "Optimization"

Speakers

Sebastian Sager (U Magdeburg): Mathematical Optimization for Clinical Diagnosis and Decision Support

Abstract: Mathematical methods are an ongoing success story in many areas of modern life. More recently, mathematical modeling, simulation, and optimization/control have also been receiving more attention in the context of clinical diagnosis and therapy. We shall present ongoing work which is based on a tight cooperation with cardiologists and oncologists.

The examples are meant to be prototypical and comprehend the diagnosis of cardiac arrhythmia, a faster detection of the source of extrasystoles, and prediction/prevention of leukopenia after chemotherapy treatment of acute myeloid leukemia patients. Our approach is pragmatic and optimization-driven: using phenomenological, but patient-specific mathematical models we try to derive diagnosis or treatment plans that capture the individual dynamics better than clinical standard procedures.

Werner Römisch (HU Berlin): Stochastic Optimization: Complexity and Numerical Methods

Abstract:

Karl Kunisch (U Graz): Sparsity in PDE-constrained Open and Closed Loop Control

Abstract: In recent years it has become evident that the choice of specific control costs is of paramount importance for the structure of optimal controls in distributed parameter systems. They allow to model not only sparsity, but also switching and multi-bang properties. This inevitably leads to variational problems which are posed in non-reflexive spaces and which may not be convex, thus entailing new analytical and numerical challenges. Currently most of the research focuses on open loop problems but first steps towards closed loop control, where one is confronted with the curse of dimensionality, are being accomplished.


Location
Humboldt-Universität zu Berlin, Main Building Room 2.097, Unter den Linden 6, 10099 Berlin


Past Events


#3 ECMath Guest Colloquium on April 22, 2016

Topic: "Sparsity: Statistics, Optimization and Applications”

Speakers
  • Peter Richtárik (U Edinburgh) "Empirical Risk Minimization: Complexity, Duality, Sampling, Sparsity and Big Data"
  • Gitta Kutyniok (TU Berlin) "Anisotropic Structures and Sparsity-based Regularization"
  • Mario Figueiredo (U Lisbon) "Learning with Strongly Correlated Variables: Ordered Weighted l1 Regularization"

#2 ECMath Guest Colloquium on January 8, 2016

Topic: Geometric PDEs and free boundary problems

Speakers
  • Konrad Polthier (FU Berlin) "Differential-based Shape Design"
  • Paola Pozzi (Duisburg-Essen) "On anisotropic Willmore Flow"
  • Benedikt Wirth (Münster) "Data fitting tools in Riemannian spaces"

#1 ECMath Guest Colloquium on June 5, 2015

Topic: Uncertainty Quantification

Speakers
  • Gabriel Lord (Heriot-Watt) "Stochastic Differential Equations, Computation and Travelling Waves"
  • Claudia Schillings (Warwick) "Analysis of the Ensemble Kalman Filter for Inverse Problems"
  • Tim Sullivan (Warwick) "Brittleness and Robustness of Bayesian Inference"


Scientific committee
  • Prof. Dr. Carsten Gräser (Freie Universität Berlin)
  • Dr. Raphael Kruse (Technische Universität Berlin)
  • Prof. Dr. Claudia Schillings (Humboldt-Universität zu Berlin)
  • Dr. Karsten Tabelow (Weierstraß-Institut für Angewandte Analysis und Stochastik)