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Leyla Jochim

Karina Scholpp

Campus North, IMT, Bldg. 310

D-76344 Eggenstein-Leopoldshafen

 

Phone +49 721 608-28398

Fax     +49 721 608-22243

Email: infoYfp2∂yin kit edu

 

YIN-Day 2013

On 12.10.13 the YIN celebrates its 5th anniversary at the Audimax of the KIT. More

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Dr. Martin Nöllenburg

Dr. Martin Nöllenburg

Algorithms for Geovisualization
Phone: +49 721 608-47334
Fax: +49 721 608-44211
noellenburgZbd0∂kit edu
Research

Karlsruher Institut für Technologie (KIT)

Institut für Theoretische Informatik Lehrstuhl für Algorithmik I

Geb. 50.34, Raum 319

Am Fasanengarten 5 

D-76131 Karlsruhe  



Algorithms for Geovisualization

The increasing popularity of interactive and dynamic maps, in particular in web-based and mobile applications, causes a growing need for new cartographic visualization algorithms in this scenario. Depending on the chosen map frame the optimal representation of the corresponding map content changes. But as the user interacts with the map, the visualization of the content must change continuously over time in order to preserve the context. This young investigator group (YIG) studies algorithms for continuous generalization and map labeling.

A second field of interest is to automatically generate user-specific and thematic maps, in particular schematic maps. Schematic maps are a means to reduce the visual complexity of a map in order to increase its readability - as long as the intended map use allows. Popular examples are route sketches or public transportation maps.

We study cartographic visualization problems using a structured algorithmic approach in order to design algorithms with provable performance and quality guarantees. These theoretic guarantees will then be experimentally evaluated in practice.

 

The YIG is located at the Institute of Theoretical Informatics, Chair for Algorithmics I.

 

Team

Publications

2010

  • Optimizing Active Ranges for Consistent Dynamic Map Labeling. [ html ]
    Computational Geometry: Theory and Applications, 43(3):312-328, 2010.
    In press; available online.
    Joint work with Ken Been, Sheung-Hung Poon, and Alexander Wolff.
  • An Improved Algorithm for the Metro-Line Crossing Minimization Problem.
    In: Proceedings of the 17th International Symposium on Graph Drawing (GD'09), Lecture Notes in Computer Science. Springer, 2010.
    To appear.

2009

  • Algorithms for Multi-Criteria Boundary Labeling. [ html ]
    Journal of Graph Algorithms and Applications, 13(3):289-317, 2009.
    Joint work with Marc Benkert, Herman Haverkort, and Moritz Kroll.
  • Boundary Labeling with Octilinear Leaders. [ html ]
    Algorithmica, 2009.
    In press; available online.
    Joint work with Michael Bekos, Michael Kaufmann, and Antonios Symvonis.
  • Consistent Digital Rays. [ html ]
    Discrete and Computational Geometry, 42(3):359-378, 2009.
    Joint work with Jinhee Chun, Matias Korman, and Takeshi Tokuyama.
  • Drawing Binary Tanglegrams: An Experimental Evaluation. [ html | pdf ]
    In: Proceedings of the 11th Workshop on Algorithm Engineering and Experiments (ALENEX'09), pages 106-119. SIAM, April 2009.
    Joint work with Markus Völker, Alexander Wolff, and Danny Holten.
  • Drawing (Complete) Binary Tanglegrams: Hardness, Approximation, Fixed-Parameter Tractability. [ html | pdf ]
    In: Proceedings of the 16th International Symposium on Graph Drawing (GD'08), volume 5417 of Lecture Notes in Computer Science, pages 324-335. Springer, 2009.
    Joint work with Kevin Buchin, Maike Buchin, Jaroslaw Byrka, Yoshio Okamoto, Rodrigo I. Silveira, and Alexander Wolff.

2008

  • Morphing Polylines: A Step Towards Continuous Generalization. [ html | pdf ]
    Computers, Environment and Urban Systems, 32(4):248-260, 2008.
    Joint work with Damian Merrick, Alexander Wolff, and Marc Benkert.
  • Cover Contact Graphs. [ html | pdf ]
    In: Proceedings of the 15th International Symposium on Graph Drawing (GD'07), volume 4875 of Lecture Notes in Computer Science, pages 171-182. Springer, January 2008.
    Joint work with Nieves Atienza, Natalia de Castro, Carmen Cortés, M. Ángeles Garrido, Clara I. Grima, Gregorio Hernández, Alberto Márquez, Auxiliadora Moreno, José Ramon Portillo, Pedro Reyes, Jesús Valenzuela, Maria Trinidad Villar, and Alexander Wolff.
  • Algorithms for Multi-Criteria One-Sided Boundary Labeling. [ html | pdf ]
    In: Proceedings of the 15th International Symposium on Graph Drawing (GD'07), volume 4875 of Lecture Notes in Computer Science, pages 243-254. Springer, January 2008.
    Joint work with Marc Benkert, Herman Haverkort, and Moritz Kroll.
  • Boundary Labeling with Octilinear Leaders. [ html | pdf ]
    In: Proceedings of the 11th Scandinavian Workshop on Algorithm Theory (SWAT'08), volume 5124 of Lecture Notes in Computer Science, pages 234-245. Springer, 2008.
    Joint work with Michael Bekos, Michael Kaufmann, and Antonios Symvonis.
  • Optimizing Active Ranges for Consistent Dynamic Map Labeling. [ html | pdf ]
    In: Proceedings of the 24th Annual ACM Symposium on Computational Geometry, pages 10-19. ACM Press, 2008.
    Joint work with Ken Been, Sheung-Hung Poon, and Alexander Wolff.
  • Consistent Digital Rays. [ html | pdf ]
    In: Proceedings of the 24th Annual ACM Symposium on Computational Geometry, pages 355-364. ACM Press, 2008.
    Joint work with Jinhee Chun, Matias Korman, and Takeshi Tokuyama.

2007

  • Improved Algorithms for Length-Minimal One-Sided Boundary Labeling. [ pdf ]
    In: Proceedings of the 23rd European Workshop on Computational Geometry (EuroCG'07), pages 190-193, 2007.
    Joint work with Marc Benkert.
  • Minimizing Intra-Edge Crossings in Wiring Diagrams and Public Transportation Maps. [ html | pdf ]
    In: Proceedings of the 14th International Symposium on Graph Drawing (GD'06), volume 4372 of Lecture Notes in Computer Science, pages 270-281. Springer, January 2007.
    Joint work with Marc Benkert, Takeaki Uno, and Alexander Wolff.
  • Morphing Polygonal Lines: A Step Towards Continuous Generalization. [ pdf ]
    In: Proceedings of the 15th Annual Geographic Information Sciences Research Conference UK, pages 390-399, 2007.
    Joint work with Damian Merrick, Alexander Wolff, and Marc Benkert.

2006

  • A Mixed-Integer Program for Drawing High-Quality Metro Maps. [ html | pdf ]
    In: Proceedings of the 13th International Symposium on Graph Drawing (GD'05), volume 3843 of Lecture Notes in Computer Science, pages 321-333. Springer, January 2006.
    Joint work with Alexander Wolff.
 

Junior Research Group of Dr. Martin Nöllenburg

Nachwuchsgruppe Dr. Martin Nöllenburg

 Martin Nöllenburg, Heiner Zille, Tobias Haaß, Philipp Schneider, Andreas Gemsa