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March 2017

ALOP Workshop: Women in Optimization

20. March 2017 - 22. March 2017
Trier University – E-Building – HS 9, Universität Trier Gebäude E
Trier, Rhineland-Palatinate 54296 Germany
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Der Workshop "Women in Optimization" findet vom 20. - 22. März 2017 an der Universität Trier statt.  Dieser Workshop richtet sich an Nachwuchswissenschaftlerinnen, Doktorandinnen und Studentinnen der Mathematik mit dem Schwerpunkt Optimierung. Das Ziel des Workshops liegt sowohl in der fachlichen Weiterbildung als auch in der Vernetzung innerhalb der Optimierungscommunity. In Fachvorträgen geladener Referentinnen möchten wir zum einen ein möglichst breites fachliches Spektrum der mathematischen Optimierung und der damit verbundenen Numerik präsentieren. Zum anderen möchten wir den Teilnehmerinnen verschiedene Karrieremodelle…

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ALOP Workshop: Stochastic Models and Control

22. March 2017 - 24. March 2017
Nells Park Hotel, Dasbachstraße 12
Trier, 54292 Germany
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The workshop will bring together leading experts and researchers from different areas of stochastic control and optimization. Like the preceding successful workshops in this series, held in Wittenberg (2009), Bad Herrenalb/Karlsruhe (2011), Berlin (2013), and Kaiserslautern (2015), the 2017 meeting aims to provide a stimulating environment for discussions of recent developments, and a platform for presentations of current research in our field.

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April 2017

ALOP Colloquium with Dr. Marta D’Elia

19. April 2017 / 16:00 - 18:00
Trier University, E Building, Universitätsring 15
Trier, Germany
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On Wednesday, April 19, 2017,  Dr. Marta D'Elia from the Computer Science Research Institute at Sandia National Laboratories will join the ALOP-Colloquium and present her recent work entitled A coupling strategy for nonlocal and local models with applications to static peridynamics and classical elasticityABSTRACT: The use of nonlocal models in science and engineering applications has been steadily increasing over the past decade. The ability of nonlocal theories to accurately capture effects that are difficult or impossible to represent by local Partial Differential…

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ALOP Colloquium with Prof. Florian Jarre

24. April 2017 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, April 24, 2017,  Prof. Florian Jarre from the Heinrich Heine Universität Düsseldorf will join the ALOP-Colloquium and present his recent work "The Max-Cut-Polytop"AbstractThe max-cut-polytope arises from a simple reformulation of the problem of finding the maximum cut in a graph with given edge weights. Unfortunately, the exact pre-presentation of the cut polytope is not tractable unless NP = Co-NP.We discuss two different representations and inner and outer nonlinear approximations of the max-cut polytope leading to the anticipation that solving…

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May 2017

ALOP Colloquium with Prof. Andreas Frommer

15. May 2017 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, May 15 2017,   Prof. Andreas Frommer of Bergische Universität Wuppertal will join the ALOP-Colloquium and present his recent work entitled Matrix functions - computation and convergence for Krylov subspace based methods Abstract: f(A)b, the action of the function f of a matrix A on a vector b, is required in many applications, for example in exponential integrators, where f = exp or in lattice QCD where f(z) = z-α; α ϵ (0, 1). Typically, A is large and sparse, so…

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ALOP Colloquium with Prof. François Glineur

29. May 2017 / 16:00 - 18:00
Trier University, E Building, Universitätsring 15
Trier, Germany
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On Monday, May 29, 2017,  Prof. François Glineur from the Université catholique de Louvain will join the ALOP-Colloquium and present his recent work entitledPerformance estimation of first-order methods for composite convex optimizationComposite convex optimization consists in the minimization of a convex objective function equal to the sum of several convex functions with different properties, for example a smooth term and a nonsmooth term. We consider a large class of first-order methods designed to solve such composite problems, which rely on specific…

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June 2017

ALOP Colloquium with Prof. Lorenz T. (Larry) Biegler

9. June 2017 / 10:30 - 12:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Friday, June 9 2017,  Prof. Lorenz T. (Larry) Biegler,  will join the ALOP-Colloquium and present his recent work. Lorenz T. (Larry) Biegler is currently the Head and Bayer University Professor of Chemical Engineering at Carnegie Mellon University. His research interests lie in computer aided process engineering (CAPE) and include flowsheet optimization, optimization of systems of differential and algebraic equations, reactor network synthesis and algorithms for constrained, nonlinear process control. Projects in these areas include analysis and development of nonlinear programming…

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ALOP Colloquium with Prof. Gabriel Wittum

12. June 2017 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, June 12, 2017,  Prof. Gabriel Wittum of King Abdullah University of Science and Technology  will join the ALOP-Colloquium and present his recent work entitledSimulation of Neuronal Signal ProcessingThe crucial feature of neuronal ensembles is their high complexity and variability. This makes modelling and computation very difficult, in particular for detailed models based on first principles. The problem starts with modelling geometry, which has to extract the essential features from those highly complex and variable phenotypes and at the…

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ALOP Colloquium with Dr. Giorgio Ferrari

26. June 2017 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, June 26 2017,  Dr. Giorgio Ferrari with Bielefeld University will join the ALOP-Colloquium and present his recent work entitled On the Optimal Management of Public Debt: a Singular Stochastic Control Problem Consider the problem of a government that wants to reduce the debt-to-GDP (gross domestic product) ratio of a country. The government aims at choosing a debt reduction policy which minimises the total expected cost of having debt, plus the total expected cost of interventions on the debt ratio.…

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August 2017

Autumn School: Optimization in Machine Learning and Data Science

28. August 2017 - 31. August 2017
Trier University, E Building, Universitätsring 15
Trier, Germany
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70€

Large parts of the new economy rely on data science and the application of machine learning. For handling these modern computational and statistical problems, optimization algorithms are of utmost importance. The typically large data sets involved in this context urge for new optimization techniques. Therefore, we are delighted to announce Julian Hall,  Tamara G. Kolda, Stephen Wright as speakers at the upcoming ALOP Autumn School entitled “Optimization in Machine Learning and Data Science.” Representing three top class authorities in their…

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September 2017

ALOP Colloquium with Prof. Tim Kelley

8. September 2017 / 10:00 - 12:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Friday, September 8, 2017, Prof. Tim Kelley of North Carolina State University  will join the ALOP-Colloquium and present his recent work entitled   Anderson Acceleration   Abstract:   We will discuss recent results on the local convergence of Anderson Acceleration. This is an algorithm for accelerating the convergence of fixed point or Picard iteration. In this talk we will discuss the first convergence results for the method, illustrate the results with an application to radiative transport, discuss issues with…

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October 2017

ALOP-Colloquium with Prof. MK (Mapundi) Banda

23. October 2017 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, October 23, 2017, at 16:00 Prof. MK (Mapundi) Banda of the University of Pretoria will join the ALOP-Colloquium and present his recent work entitledOptimal Control, Stabilization and Parameter Identification for evolution modelsEvolution models governed by the time-dependent partial differential equations will be considered. In this talk, we will present some ideas on optimal control, boundary stabilization and parameter identification for a selection of such models.  For instance, boundary information will be used to stabilise or to identify parameters of the…

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November 2017

ALOP-Colloquium with Dr. Venera Khoromskaia

6. November 2017 / 16:00 - 17:00

 Dr. Verena Khoromskaia of the Max-Planck-Institute für Mathematik in den Naturwissenschaften will join the ALOP-Colloquium and present her recent work entitledTensor numerical methods in computational quantum chemistryon Monday, November 6, 2017 at 16:00. We will meet for coffee prior to her presentation at 15:45 in room E10. The presentation will take place in HS9.

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ALOP-Colloquium with Prof. Boris N. Khoromskij

6. November 2017 / 17:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany

On Monday, November 6, 2017,  Prof. Dr. Boris Khoromskij from the Max-Planck-Institute für Mathematik in den Naturwissenschaften will join the ALOP-Colloquium and present his recent work entitledTensor numerical methods for multi-dimensional PDE's and in data modelingon Monday, November 6, 2017 at 17:00.  The presentation will take place in HS9.

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ALOP-Colloquium with Prof. John Pearson

20. November 2017 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, November 20, 2017, at 16:00  Prof. John Pearson of School of Mathematics, The University of Edinburgh will join the ALOP-Colloquium and present his recent work entitledFour Perspectives on Preconditioning PDE-Constrained Optimization ProblemsAbstract:PDE-constrained optimization problems have a wide range of applications across numerical mathematics and applied science, so it is important to develop fast and feasible methods to solve such problems. We employ preconditioned iterative methods to tackle the large and sparse matrix systems that arise from their discretization,…

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December 2017

ALOP-Colloquium with Prof. Ekaterina Kostina

4. December 2017 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, December 4, 2017, at 16:00 Prof. Ekaterina Kostina of Heidelberg University will join the ALOP-Colloquium and present her recent work entitled Optimization-Based Model Validation - a Mathematical Technology of High ImpactValidated dependable mathematical models are of ever growing importance in science and engineering, and today also driven by a serious demand of the industry. Apart from providing scientific insight into complex nonlinear processes, mathematical models are fundamental for process simulation, optimization and control. In this context the new paradigmatic…

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January 2018

ALOP-Colloquium with Prof. Andrea Walther

22. January 2018 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, January 22, 2018, at 16:00 Prof. Andrea Walther of Paderborn University will join the ALOP-Colloquium and present her recent work entitled:Recent progress in the optimization of piecewise smooth functionsIn a previous paper, we derived first and second order convexity conditions for a large class  of piecewise smooth functions.In that analysis based on piecewise linearization, a key assumption was the Linear Independence Kink Qualification (LIKQ), a generalization of the Linear Independence Constraint Qualification (LICQ) known from smooth nonlinear optimization.…

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February 2018

ALOP- Colloquium with Prof. Fredi Troeltzsch

6. February 2018 / 12:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Tuesday, February 6, 2018, at 12:00  Prof. Fredi Tröltzsch of TU Berlin will present his recent work entitled Optimal and Feedback Control of some Reaction-Diffusion EquationsThe optimal control of some systems of nonlinear reaction-diffusion equations is considered including several important equations of mathematical physics. In particular, equations are covered that develop traveling wave fronts, spiral waves, scroll rings, or propagating spot solutions. Well-posedness of the system, differentiability of the control-to-state mapping, and optimality conditions of first and second order are…

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ALOP-Colloquium with Prof. Dr. Geovani Grapiglia

26. February 2018 / 16:00 - 18:00
Trier University, E Building, Universitätsring 15
Trier, Germany
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Prof. Dr. Geovani Grapiglia of the Universidade Federal do Parana in Curitiba, PR, Brasil will visit with the students of the RTG ALOP to discuss his research as well as speak during our colloquium on the topic of Improved Optimization Methods for Image Registration Problems   Abstract: In many applications, multiple images of the same subject are obtained at different moments in time and under different conditions. The goal is to identify changes in the subject over time. For a…

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Writing Mathematical Texts in English

28. February 2018 / 9:30 - 16:00

The Research Training Group on Algorithmic Optimization is offering a one-day workshop entitled Writing Mathematical Texts in English (instructor: Prof. Mirjam Dür) on Wednesday, February 28, 2018 from 9:30 - 16:00 in E 51.  

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March 2018

Retreat in Daun

1. March 2018 - 3. March 2018

The Research Training Group plans its second retreat in Daun on the weekend of March 1 through March 3, 2018. The researchers will present their work during this retreat, followed by discussions and feedback from their advisors and fellow PhD students. Several team building events will also take place to complete the program.

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ALOP held its second retreat in Daun

1. March 2018 - 3. March 2018

In order to further the individual research projects and improve the team building process, the Research Training Group Algorithmic Optimization (ALOP) spent three days at the Sporthotel Grafenwald in Daun. In addition to individual presentations by the PhD Students, the event included in depth discussions on scientific and organizational aspects. Furthermore, the RTG enjoyed a hike and an informative evening program which served to cultivate the pleasant team environment.

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Prof. Juan Vera and Olga Kuryatnikova of Tilburg University to visit in March

5. March 2018 - 6. March 2018
Trier University, E Building, Universitätsring 15
Trier, Germany
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Prof. Juan Vera and Olga Kuryatnikova of Tilburg University are scheduled to visit the Research Training Group ALOP in March for research collaboration.   During their visit, they will speak on the following topics:   Copositive certificates of non-negativity (Prof. Juan Vera) Abstract: Sum-of-squares (sos) certificates of non-negativity, such as Putinar's Positivstellensatz, have been used to obtain powerful numerical techniques to solve polynomial optimization (PO) problems. Using such certificates, hierarchies of semidefinite relaxations are obtained for PO. Usually the use…

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April 2018

ALOP-Colloquium with Prof. Michael Günther

16. April 2018 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, April 16, 2018, at 16:00 Prof. Michael Günther of Bergische Universität Wuppertal will join the ALOP-Colloquium and present his recent work entitled Effiziente numerische Simulation multiphysikalischer Systeme Multiphysikalische Systeme werden oft durch Modelle beschrieben, die DAE-Netzwerkmodelle mit partiellen Differentialgleichungen über geeignete Randbedingungen und Quellterme koppeln. Nach Semidiskretisierung im Ort hat man es dann mit großen, gekoppelten DAE-Sytemen zu tun. In diesem Vortrag werden verschiedene Ansätze zu deren effizienter numerischer Simulation besprochen: Multirate-Verfahren und dynamsche Iteration.   The presentation…

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May 2018

ALOP-Colloquium with Kerstin Lux

7. May 2018 / 16:00 - 18:00

On Monday, May 7, 2018, at 16:00, Kerstin Lux of Universität Mannheim will join the ALOP-Colloquium and present her recent work entitled "Optimal inflow control in supply systems with uncertain demands." Abstract: We are concerned with optimal control strategies subject to uncertain demands. They have a broad range of applications. Taking uncertainty into account becomes more and more important in many areas. In the context of supply chain management, a need for control strategies taking these uncertainties into account naturally…

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Research collaboration with Prof. Dr. Boris Khoromskij and Dr. Venera Khoromskaia

14. May 2018 - 25. May 2018
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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Prof. Dr. Boris Khoromskij and Dr. Verena Khoromskaia of the Max-Planck-Institute für Mathematik in den Naturwissenschaften are scheduled to visit the RTG ALOP in May 2018 to discuss their recent research. Please check back for further details as they become available.

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ALOP-Colloquium with Prof. Partha Lahiri

14. May 2018 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, May 14, 2018, at 16:00,  Prof. Partha Lahiri of the University of Maryland College Park will join the ALOP-Colloquium and present his recent work entitled "Big data in official statistics." Abstract:  The demand for various socio-economic, transportation, and health statistics for small geographical areas is steadily increasing at a time when survey agencies are desperately looking for ways to reduce costs to meet fixed budgetary requirements.  In the current survey environment, the application of standard sample survey methods…

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June 2018

Short Course on Parallel Optimization Methods for Time Dependent Problems

5. June 2018 / 8:30 - 12. June 2018 / 10:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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Prof. Matthias Heinkenschloss with the Department of Computational and Applied Mathematics, Rice University in Houston, Texas is offering a short course on Parallel Optimization Methods for Time Dependent Problems at Trier University on behalf of the Research Training Group on Algorithmic Optimization.  The course will consist of three lectures, with the tentative lecture schedule to follow soon. The lectures will take place on the following dates and times: Tuesday, June 5, 2018 at 8:30 c.t. in HS 10 Thursday, June…

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ALOP-Colloquium with Mehiddin Al-Baali

28. June 2018 / 16:00 - 17:30

On Thursday, June 28, 2018, at 16:00 c.t. Prof. Mehiddin Al-Baali, Department of Mathematics and Statistics, Sultan Qaboos University, Muscat, Oman will present his recent work entitled  On the Damped Technique, Self-Scaling and their Combination when Introduced to the Broyden Family of Methods for Unconstrained Optimization Recently, we have extended the damped-technique in the modified BFGS method of Powell for constrained optimization to the Broyden family of quasi-Newton methods for unconstrained optimization. Appropriate choices for the damped parameter will be…

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July 2018

Women in Shape (WiSh) – a Collaborative Research Workshop

16. July 2018 / 8:00 - 20. July 2018 / 17:00
Robert-Schuman-Haus, Auf der Jüngt 1
Trier, Rhineland-Palatinate 54293 Germany
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The Collaborative Research Workshop Women in Shape -3 (WiSh): Modeling Objects in 2D and 3D will take place in Trier, Germany from 16 July through 20 July, 2018.   Unlike the traditional workshop format, the focus of WiSh is to carry out a few designated research projects that will be initiated during the workshop and lead to a viable collaboration among the participants. Participants: We welcome applications from women researchers at various stages in their careers (from graduate student to…

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August 2018

Presentation by Dr. Christina Schenk of Carnegie Mellon University

1. August 2018 / 12:00 - 14:00

Dr. Christina Schenk, an ALOP Alumni and current post doctoral fellow at Carnegie Mellon University, will join us for research collaboration and speak during our research seminar on August 1, 2018 on the following topic: Parameter Estimation for Pharmaceutical Processes - Advancements and Case Studies Abstract: The development of drug manufacturing processes involves dealing with spectroscopic data. When dealing with spectroscopic data, the identification of parameters and variances still remains a challenging task. In many cases kinetic parameter identification from…

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Summer School 2018 – Mixed Integer Nonlinear Programming

13. August 2018 - 16. August 2018
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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The Research Training Group on Algorithmic Optimization proudly announces its third annual Summer/Autumn School from August 13-16, 2018. This year's focus will be on Mixed Integer Non-Linear Programming.   Confirmed speakers are: Oliver Bastert & Zsolt Csimadia (FICO, Xpress Optimization) Christoph Buchheim (TU Dortmund) Sven Leyffer (Argonne National Labratory) Jeff Linderoth (University of Wisconsin-Madison)   Organizers:  Ulf Friedrich, Volker Schulz, Sven de Vries  You may download a preliminary schedule here Please find all the details at alop.uni-trier.de/MINLP

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September 2018

EUCCO 2018 – 5th European Conference on Computational Optimization

10. September 2018 - 12. September 2018

Registration for EUCCO 2018 is now open. Please refer to the detailed registration information located on the website.

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October 2018

Optimization Days – Math Workshop for Female Master Students

4. October 2018 / 13:00 - 6. October 2018 / 11:00

Optimization Days - a Math Workshop for Female Master Students will take place in Trier, Germany from 4 October through 6 October, 2018.   Getting ready to cross the finish line? This workshop will support you in your final steps with courses on "How to write a Mathematical Thesis" by Prof. Dr. Mirjam Dür and "Presenting yourself in Public" by actress Barbara Ullmann. In addition, you will have  a chance to meet with local PhD students to discuss your field…

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ALOP Colloquium with Arie M.C.A. Koster

29. October 2018 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, October 29, 2018 at 16:00 c.t. Prof. Dr. Ir. Arie M.C. A. Koster  of RWTH Aachen will present his recent work entitled Robust Combinatorial Optimization - New Problems and Solutions Abstract: The growing need to deal with uncertainties in optimization processes has lead to many new research directions. In robust optimization, an uncertainty set has to be defined containing all scenarios to be considered. Availability of historical data often suggests the use of a discrete or polyhedral uncertainty…

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November 2018

ALOP Colloquium with Caroline Geiersbach

26. November 2018 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, November 26, 2018 at 16:00 c.t.  Caroline Geiersbach of Universität Wien will present her recent work entitled   Stochastic Approximation for Shape Optimization     The presentation will take place in HS 9. Please join us for coffee at 15:45 in E10.

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December 2018

ALOP Colloquium with Frank Vallentin

3. December 2018 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, December 3, 2018 at 16:00 c.t. Prof. Dr. Frank Vallentin of Universität Köln will present his recent work entitled "Chromatic numbers of geometric graphs" Abstract: A classical problem in discrete geometry (due to Hadwiger and Nelson) is to find the minimal number of colors one needs to color all points in the Euclidean plane so that no two points which are distance 1 apart receive the same color. Similar geometric coloring problems can be posed in the context…

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ALOP Colloquium with Ingenuin Gasser

6. December 2018 / 16:00 - 18:00

On Thursday, December 6, 2018 at 16:00 c.t.  Prof. Gasser of Universität Hamburg will present his recent work entitled   Modelling, simulation and optimisation of power plants based on renewable energies   Abstract: In this seminar we discuss the fluid dynamics of  parabolic trough, solar updraft towers, energy towers and osmotic power stations.  The main issue is to discuss simple fluid dynamic models which on one hand describe the main features of the mentioned applications and on the other allow…

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January 2019

ALOP Colloquium with Martin Gugat, FAU Erlangen

January 28 / 16:00 - 18:00
Trier University, E Building, Universitätsring 15
Trier, Germany
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On Monday, January 28, 2019 at 16:00 c.t.  Prof. Dr. Martin Gugat of FAU Erlangen will present his recent work entitled   On the limits of boundary stabilizability for networks of strings.   Abstract: An example by Bastin and Coron illustrates that theboundary stabilization of 1-d hyperbolic systemswith certain source terms is only possible if the lengthof the space interval is sufficiently small. We show that simlar phenomena also occur fornetworks of vibrating strings that are governedby the wave equation with…

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March 2019

Presentation by Bernhard Werner, TU München

March 21 / 9:00 - 10:30
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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Dr. Bernhard Werner, TU München will visit Trier University and speak on the following topic:   Strichbasierte Handschriftenerkennung: Theorie und Anwendung Abtract: Der Vortrag beschreibt Grundlagen der Analyse von Symbolen, die auf einen Touchscreen geschrieben wurden. Diese werden durch Striche modelliert, die die Fingerbewegung des Nutzers aufzeichnen. Es werden Methoden vorgestellt, wie diese Striche deformiert werden können ohne ihre Bedeutung zu verändern, wie ihre Eigenschaften analysiert werden können und wie ihre Form mathematisch sauber beschrieben werden kann. Alle Ansätze sind…

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April 2019

Short Course on Hilbert Space Methods

April 15 / 10:00 - May 27 / 12:00

Prof. Leonard Frerick is offering a short course on Hilbert Space Methods at Trier University on behalf of the Research Training Group on Algorithmic Optimization.  The course will consist of sevenlectures, with the tentative lecture schedule to follow soon. Each lecture will take place on Mondays, April 15 to May 27, 2019, from 10:00 - 12:00 c.t. in E 52 For a short description please refer to the attached document here. Please refer back to this page for more information…

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ALOP Colloquium with Florian Jarre, Universität Düsseldorf

April 29 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, April 29 2019 at 16:00 c.t. Prof. Florian Jarre  of  Universität Düsseldorf will present his recent work. Stochastic gradient descent und Block coordinate descent -- eine Einführung in die Theorie und die praktische Anwendung   Der Vortrag befasst sich mit extrem hoch-dimensionalen speziell strukturierten Minimierungsproblemen, für die selbst die Auswertung eines einzelnen Funktionswertes oft so viel Rechenzeit beansprucht, dass neue iterative Verfahren zum Einsatz kommen, bei denen die einzelnen Iterationen billiger sind als eine Funktionsauswertung. Natürlich kann man…

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May 2019

ALOP Colloquium with Christian Meyer, TU Dortmund

May 6 / 16:00 - 17:30
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, May 6 2019 at 16:00 c.t. Prof. Dr. Christian Meyer of TU Dortmund will present his recent work entitled Optimal control of a non-smooth semi-linear elliptic equation   The presentation will take place in HS 9.   Please join us for coffee at 15:45 in E10.

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Short Course on Decomposition Based Methods for PDE Constrained Optimization

May 28 / 8:30 - June 6 / 10:00
Trier University, E Building, Universitätsring 15
Trier, Germany
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Prof. Matthias Heinkenschloss with the Department of Computational and Applied Mathematics, Rice University in Houston, Texas is offering a short course on Decomposition Based Methods for PDE Constrained Optimization at Trier University on behalf of the Research Training Group on Algorithmic Optimization.  The course will consist of three lectures, with the tentative lecture schedule to follow soon. The lectures will take place on the following dates and times: Tuesday, May 28, 2019 at 8:30 in HS 9 Tuesday, June 4,…

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June 2019

ALOP Colloquium with Barbara Kaltenbacher, Universität Klagenfurt

June 17 / 16:00 - 17:30
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, June 17 2019 at 16:00 c.t. Prof. Dipl.-Ing. Dr. Barbara Kaltenbacher of AAU Klagenfurt will present her recent work entitled Optimization based formulation and regularization of inverse problems Abstract:   The conventional way of formulating inverse problems such as identification of a (possibly infinite dimensional) parameter, is via some forward operator, which is the concatenation of the observation operator with the parameter-to-state-map for the underlying model. Recently, all-at-once formulations have been considered as an alternative to this reduced…

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July 2019

ALOP Colloquium with Christopher Hojny, TU Darmstadt

July 1 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, July 1 2019 at 16:00 c.t.  Dr. Christopher Hojny, TU Darmstadt  will present his recent work entitled Symmetry Handling in Binary Programs - Combining Symretopes and Orbital Fixing   Abstract: Branch-and-bound is an established method to solve binary programs with thousands of variables in adequate time. If symmetries are present, however, even small instances may be hard to solve, because symmetric parts of the branch-and-bound tree are inspected repeatedly without providing new information. A standard way to handle symmetries…

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October 2019

Autumn School on Optimal Control and Optimization with PDE’s

October 7 - October 10
Trier University, E Building, Universitätsring 15
Trier, Germany
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The Research Training Group on Algorithmic Optimization proudly announces its fourth annual Autumn School from October 7 - 10, 2019. This year's focus will be on Optimal Control and Optimization with PDE's   Confirmed speakers are: Prof. Dr. Alfio Borzì (Universität Würzburg) Prof. Dr. Michael Hintermüller (HU Berlin) Prof. Dr. Michael Hinze (Universität Koblenz-Landau)     Organizers:  Nicole Marheineke (Trier University),  Volker Schulz (Trier University)   Schedule, Location and Travel Information:  The workshop schedule is available here. The schedule of…

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Career Coaching Workshop with Dr. Angela Heinrich

October 31 / 9:00 - 17:00
Gästeraum near Mensa, Trier University

A Career Coaching workshop geared towards PhD students will take place on October 31, 2019 from 9 am to 5 pm in the Gästeraum (Mensa Building).  This promises to be an interactive workshop addressing, among other things, career planning and goals as well as  professional job negotiations. Dr. Heinrich is a renowned professional with experience in Neuroscience and systemic coaching.   When: October 31, 2019                   9 - 5 Where: Gästeraum in the Mensa Building  

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November 2019

ALOP Colloquium with Prof. Dr. Volker Kaibel

November 4 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, November 4 2019 at 16:00 c.t.  Prof. Dr. Volker Kaibel, Otto-von-Guericke-Universität Magdeburg  will present his recent work entitled   Projections in Combinatorial Optimization Formulating problems via linear inequalities and projections is at the heart of the polyhedral combinatorics approach to Combinatorial Optimization. We present some examples for which this can be achieved with surprisingly few inequalities and we give an almost pictorial proof showing that for other problems exponentially many inequalities are required.   The presentation will take…

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Research Seminar Talk by Patricia Doerr

November 13 / 12:00 - 13:00
Trier University, E Building, Universitätsring 15
Trier, Germany
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Patricia Doerr is scheduled to speak about her research in the Research Seminar on Wednesday, November 13, 2019 at noon in E 51.

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