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October 2016

ALOP Colloquium with Prof. Dr. Harbir Antil

5. October 2016 / 15:45 - 17:45
Trier University, E Building, Universitätsring 15
Trier, Germany
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On October 5, 2016, Prof. Dr. Harbir Antil from George Mason University will join the ALOP-Colloquium and present his recent work. At 15:45 there will be a coffee hour in E10. At 16:15 the presentation will take place in HS10.Optimal control of fractional order PDEsAbstractDiffusion is the tendency of a substance to evenly spread into an available space, and is one of the most common physical processes. The classical models of diffusion lead to well-known equations. However, in recent times, it…

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ALOP Colloquium with Prof. Dr. Georg Pflug

24. October 2016 / 15:45 - 17:30
Trier University, E Building, Universitätsring 15
Trier, Germany
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On October 24, 2016,  Prof. Dr. Georg Pflug  from the University of Vienna  will join the ALOP-Colloquium and present his recent work:Multistage Stochastic Optimization: Approximation, bounds and ambiguityAbstractMultistage stochastic programs are - in contrast to two-stage programs - difficult variational problems for which solutions can be found only in exceptional cases. For this reason, we have to approximate them by easier programs. We show how a distance between these problems can be found by a variant of a transportation distance, which…

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November 2016

ALOP Colloquium with Prof. Dr. Maria Dolores Ugarte

7. November 2016 / 15:45 - 17:30
Trier University, E Building, Universitätsring 15
Trier, Germany
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On November 7, 2016,  Prof. Dr. Maria Dolores Ugarte  from the Universidad Publica de Navarra  will join the ALOP-Colloquium and present her recent work: Title:  Analyzing cancer mortality in small areas using Bayesian B-splines  Abstract: In recent years, models incorporating splines have been considered for smoothing risks in disease mapping.  Although these models are very fexible, they can be computationally demanding in certain cases. In this talk, several models including one, two, and three dimensional B-splines (penalized or un-penalized) are proposed…

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ALOP Colloquium with Dr. Benedikt Wilbertz

28. November 2016 / 15:45 - 17:45
Trier University, E Building, Universitätsring 15
Trier, Germany
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On November 28, 2016,  Dr. Benedikt Wilbertz will join the ALOP-Colloquium and present his recent work entitled Hot Topics in Machine LearningAbstractThe history of machine learning goes back to the late 50s, when the first perceptron models were created to build machines that lean from observations.It took until the mid 80s that Yann LeCun constructed a neural network which can be considered as the first production read application of modern machine learning.Since then, the field shifted its focus more towards…

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ALOP-Colloquium with Prof. Dr. Andreas Krause

30. November 2016 / 14:00 - 16:00
Trier University, E Building, Universitätsring 15
Trier, Germany
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On Wednesday, November 30, 2016,  Prof. Dr. Andreas Krause from the ETH Zurich will join the ALOP-Colloquium and present his recent work entitledSubmodularität und Machine Learning At 13:45 there will be a coffee hour in E-10. At 14:00 the presentation will take place in HS9.

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January 2017

ALOP-Colloquium with Prof. Dr. Armin Fuegenschuh

January 19 / 16:15 - 18:00
Trier University, E Building, Universitätsring 15
Trier, Germany
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On Thursday, January 19, 2017,  Prof. Dr. Armin Fuegenschuh from the Helmut Schmidt Universitaet Hamburg will join the ALOP-Colloquium and present his recent work entitledDesign Issues for Magnetic Rulers We deal with the design of a magnetic ruler as an absolute positioning system. Trapezoid-shaped magnetic areas are placed side by side, so that the resulting pattern enables a unique encoding of each position up to a micrometer level. The problem of finding a longest-possible ruler from a set of elementary…

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ALOP-Colloquium with Dr. Roland Hildebrand

January 23 / 16:00 - 18:00
Trier University, E Building, Universitätsring 15
Trier, Germany
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On Thursday, January 23, 2017,  Dr. Roland Hildebrand from the University of Grenoble  will join the ALOP-Colloquium and present his recent work Element-wise functions preserving positivity of matrices At 15:45 there will be a coffee hour in E10. The presentation will take place in HS9 at 16:15.

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February 2017

ALOP Colloquium with Dr. Bart Vandereycken

February 6 / 16:00 - 18:00
Trier University, E Building, Universitätsring 15
Trier, Germany
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On Monday, February 6, 2017,  Dr. Bart Vandereycken from the University of Geneva will join the ALOP-Colloquium and present his recent work Manifold optimization for low rank matrix and tensor completionThe minimisation of a smooth objective function subject to (matrix) rank constraints can sometimes be very effectively solved by methods from Riemannian optimisation. This is for instance the case with the low-rank matrix and tensor completion problems However, the standard theory of Riemannian optimisation leaves some questions unanswered regarding its theoretical and practical…

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April 2017

ALOP Colloquium with Dr. Marta D’Elia

April 19 / 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

April 24 / 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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