About

I am head of Visual Analysis and Search Group at GRIS, TU Darmstadt. My research focus is on visual analytics of graphs and time series.
I have closely cooperated in this area with Fraunhofer IGD, department Realtime Solutions for Simulation and Visual Analytics.
I have recently finished my PhD thesis entitled Visual Analytics of Large Weighted Directed Graphs and Two-Dimensional Time-Dependent Data.

Research fields

1. Visual Analysis of Graphs: topology, structure, dynamics, what-if-scenarios,...
Applications: finance, biology, social science, transportation, software engineering, etc. More information...

2. Visual Analysis of Time-Dependent Data: focus on motion data from transportation, biology, finance, emergency and security. Finding common patterns, visualization of patterns, etc. more information ...

Teaching

SS 2011 Seminar for Information Visualization and Visual Analytics
WS 10/11 Lectures: Information Visualization and Visual Analytics (teaching assistant)
SS 10 Seminar for Information Visualization and Visual Analytics (teaching assistant)
WS 09/10 Lectures: Information Visualization and Visual Analytics (teaching assistant)
SS 09 Seminar for Information Visualization and Visual Analytics (teaching assistant)
WS 08/09 Lectures: Information Visualization and Visual Analytics (teaching assistant)

Publications by Topic

Visual Analysis of Time-Dependent Data (Movement Data)

• Tekusova, Tatiana; Kohlhammer, Jörn: Applying Animation to the Visual Analysis of Financial Time-Dependent Data, In Proceedings of IEEE Computer Society: 11th International Conference on Information Visualisation, pp. 101-108 , 2007 Link to PDF (Citeseer)
• Schreck, Tobias; Tekusova, Tatiana; Kohlhammer, Jörn; Fellner, Dieter: Trajectory-Based Visual Analysis of Large Financial Time Series Data, ACM SIGKDD Explorations, Special Issue on Visual Analytics, December 2007, Volume 9, Issue 2, 2007 Link to PDF (Citeseer)
• Tekusova, Tatiana; Voss, Viktor: Semantic Search and Visualization of Time-Series Data, In Proceedings of I-KNOW '08, the 8th International Conference on Knowledge Management and I-MEDIA '08, International Conference on New Media Technology. pp. 332-340, 2008 Link to PDF (Citeseer)
• Tekusova, Tatiana; Schreck, Tobias: Visualizing Time-Dependent Data in Multivariate Hierarchic Plots - Design and Evaluation of an Economic Application, In Proceedings of IEEE Computer Society 12th International Conference on Information Visualisation, pp. 143-150, 2008 Link to PDF (Citeseer)
• Schreck, Tobias; Bernard, Jürgen; Tekusova, Tatiana; Kohlhammer, Jörn: Visual cluster analysis in trajectory data with interactive Kohonen Maps, In. Proceeding of IEEE Symposium on Visual Analytics Science and Technology, pp. 3-10, 2008 Link to PDF
• Schreck, Tobias; Bernard, Jürgen; von Landesberger, Tatiana; Kohlhammer, Jörn: Visual Cluster Analysis in Trajectory Data Using Editable Kohonen Maps, Information Visualization, Volume 8, pp. 14-29, 2008
• von Landesberger, Tatiana; Bremm, Sebastian; Rezaei, Peyman and Schreck, Tobias: Visual Analytics of Time Dependent 2D Point Clouds, In Proceedings of Computer Graphics International, pp. 97-101, 2009 Link to PDF
• Bremm, Sebastian; Maier, Sebastian; von Landesberger, Tatiana and Schreck, Tobias: Ein flexibles System fur die explorative visuelle Sequenzanalyse, Special Issue on Visual Analytics Datenbank Spektrum, pp. 8-16, December 2009 Link to PDF
• Andrienko, Gennady; Andrienko, Natalia; Bremm, Sebastian; Schreck, Tobias; von Landesberger, Tatiana; Bak, Peter and Keim, Daniel A.: Space-in-Time and Time-in-Space Self-Organizing Maps for Exploring Spatio-temporal Patterns,Eurographics/IEEE Symposium on Visualization, 2010 Link to PDF
• S. Bremm , T. von Landesberger , G. Andrienko , N. Andrienko, T. Schreck: Interactive Analysis of Object Group Changes over Time, EuroVA 2011, to appear

Visual Graph Analysis

• Tekusova, Tatiana; Kohlhammer, Jörn: Visual Analysis and Exploration of Complex Corporate Shareholder Networks, IS\&T/SPIE Conference on Visualization and Data Analysis, Volume 6809, pp. 68090F, 2008 Link to PDF
• von Landesberger, Tatiana; Görner, Melanie; Schreck, Tobias: Visual Analysis of Graphs with Multiple Connected Components, In Proceedings of IEEE Symposium on Visual Analytics Science and Technology, pp. 155-162, 2009 Link to PDF
• von Landesberger, Tatiana; Rehner, Robert; Görner, Melanie and Schreck, Tobias: A System for Interactive Visual Analysis of Large Graphs Using Motifs in Graph Editing and Aggregation, In Proceeding of Vision Modeling Visualization Workshop, pp. 331-339, 2009 Link to PDF
• von Landesberger, Tatiana; Kuijper, Arjan; Schreck, Tobias; Kohlhammer, Jörn; van Wijk, Jarke J.; Fekete, Jean-Daniel and Fellner, Dieter W.: Visual Analysis of Large Graphs, Proceedings of Annual Conference of the European Association for Computer Graphics, 2010 Link to PDF
• von Landesberger, Tatiana; Bremm, Sebastian; Bernard, Jurgen; Schreck, Tobias: Smart Query Definition for Content-Based Search in Large Sets of Graphs, EuroVAST 2010

Visual Analysis of Hierarchic Data

• Tekusova, Tatiana; Knuth, Martin; Schreck, Tobias; Kohlhammer, Jörn: Data Quality Visualization for Multivariate Hierarchic Data, IEEE Information Visualization Conference, Poster Paper, pp. 108-109, 2008(Poster Paper) Link to PDF
• Tekusova, Tatiana; Schreck, Tobias: Visualizing Time-Dependent Data in Multivariate Hierarchic Plots - Design and Evaluation of an Economic Application, In Proceedings of IEEE Computer Society 12th International Conference on Information Visualisation, pp. 143-150, 2008 Link to PDF (Citeseer)

Visual Analysis of Groups

S. Bremm , T. von Landesberger , G. Andrienko , N. Andrienko, T. Schreck: Interactive Analysis of Object Group Changes over Time, EuroVA 2011, to appear

von Landesberger, Tatiana; Bremm, Sebastian; Rezaei, Peyman and Schreck, Tobias: Visual Analytics of Time Dependent 2D Point Clouds, In Proceedings of Computer Graphics International, pp. 97-101, 2009 Link to PDF

Visual Analysis of Point Cloud Data

• Schreck, Tobias; von Landesberger, Tatiana and Bremm, Sebastian: Techniques for Precision-Based Visual Analysis of Projected Data, In Proceedings of IS\&T/SPIE Electronic Imaging: Visualization and Data Analysis, Volume 7530, pp. 75300E-1--75300E-12, 2010, Best paper award Link to PDF
• Kalbe, Thomas; Tekusova, Tatiana; Schreck, Tobias and Zeilfelder, Frank: GPU-Accelerated 2D Point Cloud Visualization using Smooth Splines for Visual Analytics Applications, In Proceedings of Spring Conference on Computer Graphics, pp. 111-125, 2008 Link to PDF (Citeseer)
• von Landesberger, Tatiana; Bremm, Sebastian; Rezaei, Peyman and Schreck, Tobias: Visual Analytics of Time Dependent 2D Point Clouds, In Proceedings of Computer Graphics International, pp. 97-101, 2009 Link to PDF

Uncertainty

• Schreck, Tobias; von Landesberger, Tatiana and Bremm, Sebastian: Techniques for Precision-Based Visual Analysis of Projected Data, In Proceedings of IS\&T/SPIE Electronic Imaging: Visualization and Data Analysis, Volume 7530, pp. 75300E-1--75300E-12, 2010, Best paper award Link to PDF
• Tekusova, Tatiana; Knuth, Martin; Schreck, Tobias; Kohlhammer, Jörn: Data Quality Visualization for Multivariate Hierarchic Data, IEEE Information Visualization Conference, Poster Paper, pp. 108-109, 2008(Poster Paper) Link to PDF

Perception

• Tekusova, Tatiana; Skwarek, Slawomir; Kohlhammer, Jörn; Paramei, Galina: Perception of Direction Changes in Animated Data Visualization, In Proceedings of Symposium on Applied Perception in Graphics and Visualization, Poster Session, pp. 205-205, 2008 Link to PDF

Visual Clustering, Visual Dimension Reduction, and Visual Feature Space Analysis

• S. Bremm, T. von Landesberger, J. Bernard, T. Schreck: Assisted Descriptor Selection Based on Visual Comparative Data Analysis, EuroVis 2011, to appear
• Schreck, Tobias; Bernard, Jürgen; von Landesberger, Tatiana; Kohlhammer, Jörn: Visual Cluster Analysis in Trajectory Data Using Editable Kohonen Maps, Information Visualization, Volume 8, pp. 14-29, 2008
• Bernard, Jurgen; von Landesberger, Tatiana; Bremm, Sebastian and Schreck, Tobiads: Micro-Macro Views for Visual Trajectory Cluster Analysis. (Poster paper), Eurographics/IEEE Symposium on Visualization, 2009 Link to PDF
• Schreck, Tobias; von Landesberger, Tatiana and Bremm, Sebastian: Techniques for Precision-Based Visual Analysis of Projected Data, In Proceedings of IS\&T/SPIE Electronic Imaging: Visualization and Data Analysis, Volume 7530, pp. 75300E-1--75300E-12, 2010, Best paper award Link to PDF

Visual Analysis of Sequence Data

• Bremm, Sebastian; Maier, Sebastian; von Landesberger, Tatiana and Schreck, Tobias: Ein flexibles System fur die explorative visuelle Sequenzanalyse, Special Issue on Visual Analytics Datenbank Spektrum, pp. 8-16, December 2009 Link to PDF

Visual Search in Databases

• Tekusova, Tatiana; Voss, Viktor: Semantic Search and Visualization of Time-Series Data, In Proceedings of I-KNOW '08, the 8th International Conference on Knowledge Management and I-MEDIA '08, International Conference on New Media Technology. pp. 332-340, 2008 Link to PDF (Citeseer)
• von Landesberger, Tatiana; Voss, Viktor and Kohlhammer, Jörn: Semantic Search and Visualization of Time-Series Data, Springer Series, Volume 221, p. 205-216, 2009
• von Landesberger, Tatiana; Bremm, Sebastian; Bernard, Jurgen; Schreck, Tobias: Smart Query Definition for Content-Based Search in Large Sets of Graphs, EuroVAST 2010

PhD Thesis

• von Landesberger, Tatiana: Visual Analytics of Large Weighted Directed Graphs and Two-Dimensional Time-Dependent Data,TU Darmstadt, PhD Thesis, 2010 Link to PDF