Annual Report 2010 - Fachgruppe Informatik an der RWTH Aachen ...

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and hydrogeological problems in two or three dimensions. The goal of this project is to develop a parallelization of SHEMAT based on the OpenMP standard for shared memory computers as well as to establish a methodology to reliably estimate model parameters using automatic differentiation. This project is funded by GEOPHYSICA Beratungsgesellschaft mbH and Federal Ministry for the Environment, Nature Conservation and Nuclear Safety. Parallel Simulation of Reactive Multiphase Fluid Flow Models O. Fortmeier, C. Bischof, M. Bücker This project which is a joint work with the Chair for Numerical Mathematics is part of the Collaborative Research Centre (SFB) 540, "Model-based experimental analysis of kinetic phenomena in fluid multi-phase reactive systems". The main topic of this project is the development of a parallel solver (DROPS) for the incompressible Navier-Stokes equations that can be used for the numerical simulation of certain two-phase fluid flow models which are considered in this SFB. The focus of our work is on the development of a hybrid parallelization strategy combining the advantages of OpenMP and MPI. Research topics include parallel grid refinement, load balancing, and parallel iterative algorithms to solve sparse systems of linear equations. An Environment for Parameter Identification and Sensitivity Analysis M. Petera, C. Bischof, M. Bücker This project is part of the Collaborative Research Centre (SFB) 540, "Model-based experimental analysis of kinetic phenomena in fluid multi-phase reactive systems". Several projects in the SFB 540 aim at developing a better understanding of complicated processes through the use of already existing simulation packages or newly developed software in the context of an inverse problem formulation. In order to support this process, we are developing an environment for parameter identification, which allows the coupling of simulation codes with algorithms for the solution of inverse problems with little effort. Tools for the automatic differentiation of programs are an important ingredient, as they allow the exact and efficient computation of derivatives of existing programs and thus increase both the robustness and speed of solvers for inverse problems. Another contribution is the automatic generation of marshalling code which effects the interfacing of the world of simulation with that of numerical solvers for inverse problems. In particular, we plan to develop such an environment around the models for dripping processes on films that are employing the commercial FLUENT CFD solver, and the SEPRAN solver, developed at Delft University of Technology, that is used in the modelling of boundary processes. The development of numerical methods that are specifically tailored to these problems is infeasible due to the complexity of the codes employed. 386
Robust Shape Optimization for Artifical Blood Pumps: Hematological Design, Largescale Transient Simulations, and Influence of Constitutive Models, Sensitivity Analysis M. Lülfesmann, C. Bischof, M. Bücker This project is part of the Priority Programme 1253 "Optimization with Partial Differential Equations" financed by the DFG since July 2006. It is a joint work with the Chair for Computational Analysis of Technical Systems. In the context of shape optimization of blood pumps, we proprose to address the issue of objective functions which can be correlated with the accumulation of blood damage and the influence of constitutive model on the optimal shapes. The entire optimization tool chain, based on analytically-derived sensitivities and adjoints, will be subjected to sensitivity analysis with the help of automatic differentiation. It is expected that criteria for detecting inadequacies in constitutive modeling will be exemplified, e.g., by extreme sensitivity of the optimal shapes to model parameters. 387
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Annual Report 2010 Computer Science
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Contents Preface ..................
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Preface It is a long standing tradi
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Otto Spaniol’s Retirement After 2
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Moving back to the lighter side, tw
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Next on the agenda was a true innov
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Computer Science Summer Party - Som
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Bright Minds in Computer Science -
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To close the big gap between school
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Two special editions of Informatik
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Teaching 21
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subject it builds the four majors o
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Linear Algebra; Stochastics; Numeri
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Software Development), Computer Sci
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The International Master Programme
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annotation, and retrieval of spatia
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Proseminar: Ausgewählte Kapitel de
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Anwendung und Nutzen von Prozess- u
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Geometrieverarbeitung Kobbelt, Dekk
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Postgraduate Courses - Winter Term
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Engineering (GloSE) Softwaretechnik
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05.11.2009: Wirtschaftliche Entwick
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VORNAME NACHNAME of Autosar) TITEL
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VORNAME NACHNAME TITEL Ferdi Kirmiz
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VORNAME NACHNAME TITEL Stephan Peit
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VORNAME NACHNAME TITEL Zeeshan Khan
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Overall Number of Students and Grad
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Algorithms and Complexity Staff •
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Overview Many technological innovat
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Dynamic Coordination in Large Netwo
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Design and Analysis of Algorithms i
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analyze distributed protocols for t
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Other Activities Courses Our group
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Talks and Publications Talks Alexan
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Jean Cardinal and Martin Hoefer. No
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Overview Our teaching and research
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The major goal of this project is t
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Other Activities Courses Our group
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Joachim Kneis, Daniel Meister, Jan
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D. Guck S. Herting C. Jansen M. Kam
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The group is happy to welcome Johan
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on efficient numerical methods and
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to the engineers and thus offer a c
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Project partners are universities,
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hybrid systems (SHS), which allows
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Synthesising of Model Based Testing
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and/or to prove the design correct.
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Erika Ábrahám: • Program commit
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Joost-Pieter Katoen. Abstraction of
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Erika Abraham, Ulrich Loup, Florian
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Daniela Lepri, Peter Csaba Ölveczk
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Overview Our research group is conc
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Termination Analysis for Logic and
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Automated Complexity Analysis J. Gi
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• Participant of the Workshop on
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Talks and Publications Talks C. Fuh
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Publications: Journals and Conferen
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Lars Noschinski. Automated Complexi
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• Externals Dipl.-Inform. M. Duka
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Funding comes from various sources,
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communication, the scheduling and i
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of personal data released to differ
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consumption status. A prototype of
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Global Software Engineering (GloSE)
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automatically computes testing metr
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important features of MontiCore’s
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Tool Integration for Heterogeneous
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Toolchain Integration in Requiremen
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demanded by several software houses
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REGINA-Arbeitskreis Cloud Computing
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• Member of the Program Committee
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Retkowitz, D.: Softwareunterstützu
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Berger, C., Rumpe, B.: Supporting A
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Software Construction Staff • Fac
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Research Projects Evaluating Busine
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Automatic Test Case Generation base
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Selection of Organisation Specific
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Talks and Publications Talks H. Lic
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Communication and Distributed Syste
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Overview In 2010 the former Chair I
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Research Projects Adaptive and Ligh
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• Establish ISO as lead organisat
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novel concept for Wi-Fi sharing com
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delegate certain tasks to other dev
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ability to store containers and cel
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UMIC Simulation Framework Georg Kun
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communication protocols on symbolic
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Other Activities Klaus Wehrle Progr
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Publications Aktas, I.; Otten, J.;
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Lora, M.A. (2010): QoE in Cooperati
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UMIC Mobile Network Performance Gro
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Research Projects Ultra-robust Wire
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Talks and Publications Talks J. Gro
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Information Systems Staff • Profe
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Overview Today, the field of Inform
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Future Mobile Internet Services: Mo
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part of the research initiative Ada
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DFG CONTici: Context Adaptive Inter
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state-of-the-art in human resource
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DAAD IKYDA: Non-linear Digital Stor
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infrastructures for scientific comm
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Models for Quality Management in Sc
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Other Activities Services Prof. Jar
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TEL’10, ICWL’10, Workshop STEG
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Talks and Publications Talks Y. Cao
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D. Kovachev: A Cloud Multimedia Pla
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Ralf Klamma, R. W. H. Lau, Shu-Chin
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Sandra Geisler, Christoph Quix, A.
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Zinayida Petrushyna, Ralf Klamma, M
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Knowledge-Based Systems & Cognitive
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Research Projects A Deliberative Re
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In the last three years we continuo
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implementation of the algorithm on
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esembling the branching time logic
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capture default reasoning mechanism
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Other Activities Program Committees
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Talks and Publications Talks Stefan
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Dipl.-Inform. M. Sundermeyer M.A. T
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• image recognition Most of these
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the most probable sentence. These m
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language understanding unit and a d
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Research Projects Global Autonomous
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The interpersonal communication pro
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B. J. Kröger, J. Kannampuzha, D. B
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Logic & Theory of Discrete Systems
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meeting of all German DFG-research
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surprising result that McNaughton
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exist practical algorithms for such
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• Member of the Evaluation Commit
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F. Radmacher: A Game for Reliable R
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[19] J. Olschewski and M. Ummels: T
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Overview The research group on Math
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combine logical and algebraic appro
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B. Puchala, Parity Games with Parti
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Computer Graphics and Multimedia Mo
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Overview The Chair of Computer Grap
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technologies for using recognition
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Practical Mixed-Integer Optimizatio
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A Sketching Interface for Feature C
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Generalized Use of Non-Terminal Sym
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Vision-Based Analysis and Reconstru
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SCRAMSAC: Improving RANSAC's Effici
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Ad-Hoc Multi-Displays for Mobile In
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Continuous Representation of Digita
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Level-Set Tracking for Automotive A
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Real-time Visual Object Detection P
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Other Activities Prof. Dr. Leif Kob
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• Member, Deutsche Arbeitsgemeins
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E. Horbert, Geometrically Constrain
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Data Management and Exploration Sta
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Data Analysis and Knowledge Extract
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prototypical one-cylinder engine fo
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Figure 5: OpenSubspace evaluation f
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Outlier Ranking in High Dimensional
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Relevance Feedback for the Explorat
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authenticate himself or herself in
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Other Activities Teaching Winter te
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Awards • Dipl.-Inform. Stephan G
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Assent I., Kremer H., Seidl T.: Spe
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Computer-Supported Learning Staff
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Overview Our focus in research and
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CoboCards GmbH and penetrated the E
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Daniel Herding presenting at DeLFI
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mathematics, computer science, natu
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The effect of the different measure
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Nadine Bergner • Co-organization
Page 339 and 340: Media Computing Group Staff • Fac
Page 341 and 342: Our group builds upon these results
Page 343 and 344: structure, and informal seating in
Page 345 and 346: The idea has been explored in three
Page 347 and 348: PinStripe: Eyes-free Continuous Inp
Page 349 and 350: Stacksplorer: Understanding Dynamic
Page 351 and 352: Our design rationale is to give the
Page 353 and 354: direct manipulation. Due to the sea
Page 355 and 356: Corona Many historical buildings ar
Page 357 and 358: CocoaHeads Since April 2008, we hav
Page 359 and 360: Talks and Publications Talks Usabil
Page 361 and 362: Christian Corsten. DragonFly: Spati
Page 363 and 364: • Guest Researcher:    Chak
Page 365 and 366: Research Projects [mc]square - Mode
Page 367 and 368: Synthesizing Best Transformers for
Page 369 and 370: UMIC Projects at i11 Carsten Weise
Page 371 and 372: Modelchecking Modular Protocols Car
Page 373 and 374: construction costs, the lack of sui
Page 375 and 376: Another issue in model-based develo
Page 377 and 378: Laboratory, RWTH) and Marco Roveri
Page 379 and 380: information from SNMP-based and fro
Page 381 and 382: Publications Biallas, S.; Brauer, J
Page 383 and 384: Schlich, B.; Brauer, J. & Kowalewsk
Page 385 and 386: Overview A recurring theme of the r
Page 387 and 388: Research Projects Over the past yea
Page 389: esearch groups: Applied Medical Eng
Page 393 and 394: • 1st Workshop on Automated Progr
Page 395 and 396: M. Lülfesmann. Computer-aided educ
Page 397 and 398: M. Probst, M. Lülfesmann, H. M. B
Page 399 and 400: Overview The focus of our research
Page 401 and 402: compute the gradient of the cost fu
Page 403 and 404: Waterways Engineering and Research
Page 405 and 406: methods to cases were our program r
Page 407 and 408: Other activities • Uwe Naumann is
Page 409 and 410: K. Rattanakornpunt, U. Naumann and
Page 411 and 412: • Student Researchers Dennis Effm
Page 413 and 414: Since recently, our research is als
Page 415 and 416: able to easily identify areas where
Page 417 and 418: VisPME - Visualization in Parallel
Page 419 and 420: With a novel VR-based modeling tool
Page 421 and 422: voxels with only a low number of pa
Page 423 and 424: Talks and Publications D. Holz: Soi
Page 425 and 426: D. Holz, T. Beer, T. Kuhlen (2009).
Page 427 and 428: Overview The research group IT-Secu
Page 429 and 430: Talks, Posters, and Publications Ta
Page 431 and 432: UMIC Mobile Network Performance Gro
Page 433 and 434: Research Projects Ultra-robust Wire
Page 435 and 436: Talks and Publications Talks J. Gro
Page 437 and 438: Parallel Programming Staff • Facu
Page 439 and 440: Research Activities Scalable Perfor
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Scalable Infrastructure for the Aut
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Other Activities Awards ICPP 2010 B
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Talks and Publications Talks M. Gei
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F. Wolf: Kranken Herzen helfen - In
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Wolfgang Frings, Felix Wolf, Ventsi
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Overview Paolo Bientinesi is Junior
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Other Activities Services Throughou
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Architectures. Accepted for publica
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Dissertations and Habilitations 453
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Social Software and Community Infor
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Personalized eHomes: Mobility, Priv
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Design Patterns for Safety-Critical
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Robust Machine Translation for Mult
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modeled together with its necessary
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Personalization in Technology Enhan
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A Log-Linear Discriminative Modelin
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Generic Modeling and Mapping Langua
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Evaluators: Prof. Dr. rer. nat. Ber
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Mechanisms, Models, and Tools for F
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Adaptive Multimodal Exploration of
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Discriminative Training and Acousti
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Channel Assignment and Security in
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Evaluators: Prof. Dr. Hermann Ney P
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for this problem the first polynomi
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Aspects of Wardrop Equilibria Lars
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Anonymous Communication in the Age
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World libraries : towards efficient
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On the Complexity of Equilibria in
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Energy-Efficient Design for Portabl
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Adaptable Transformation-Based Simi
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Finite Automata on Unranked Trees:
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Explicit checks are complemented by
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Central Services 501
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System Administration Group Staff
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The bandwidth increased significant
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What you can find in our library
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5. Bookcrossing: Since 2009, our li
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All these activities are made possi
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Co-operations 513
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Cluster of Excellence ”Ultra High
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The UMIC Workshop on Future Mobile
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UMIC Open Day 2010 The UMIC cluster
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Virtual Institute - High Productivi
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Bonn-Aachen International Center fo
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Graduiertenkollegs - Research Train
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Graduiertenkolleg ‘Software for M
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  The German University of Techno
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TGGS Thai-German Graduate School of
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Forum Information Technology at RWT
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Since January 2009, Bernhard Rumpe
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the framework of their respective p
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possible reseachs topics. This matr
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epresentation or, even better, real
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REGINA companies include world mark
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service integration capabilities ar
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549
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