The Chemnitz connection

Chemnitz Scientific Computing Preprints

In this document we review the status of existing techniques for non-linear model order reduction by investigating how well these techniques perform for typical industrial needs. In particular the TPWL-method (Trajectory Piecewise Linear-method) and the POD-approach (Proper Orthogonal Decomposion) is taken under consideration. We address several questions that are (closely) related to both the ...

Chemnitz Scientific Computing Preprints

This paper is devoted to the fast solution of interface concentrated finite element equations. The interface concentrated finite element schemes are constructed on the basis of a non-overlapping domain decomposition where a conforming boundary concentrated finite element approximation is used in every subdo-main. Similar to data-sparse boundary element domain decomposition methods the total num...

Chemnitz Scientific Computing Preprints

We provide a unifying projection-based framework for structure-preserving interpo-latory model reduction of parameterized linear dynamical systems, i.e., systems having a structured dependence on parameters that we wish to retain in the reduced-order model. The parameter dependence may be linear or nonlinear and is retained in the reduced-order model. Moreover, we are able to give conditions un...

ImageCLEF 2006 Experiments at the Chemnitz Technical University

Abstr act. We present a report about our participation in the ImageCLEF photo task 2006 and a short description of our new framework for future use in further CLEF participations. We described and analysed our participation in the monolingual English task. Special Lucene­aligned query expansion and histogram comparisons are helping to improve the baseline results.

Der Masterstudiengang Wissensmanagement an der TU Chemnitz