Dr. Thomas van Dijk
Lehrstuhl für Informatik I
Universität Würzburg
Am Hubland
D97074 Würzburg
Raum: E27
Tel.: +49 (0) 9313189040
Fax: +49 (0) 9313184600
Research Interests
 Algorithmicallyguided user interaction
 Algorithms for Geographic Information Systems
 Implementation; computational experiments
 Exact algorithms (exponentialtime / parameterised ...)
Awards
 New! Best Poster Award Runners up at ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems 2015 (ACMGIS) for "There and Back Again: Using FréchetDistance Diagrams to Find Trajectory Turning Points." With Lukas Beckmann, Benedikt Budig and Johannes Schamel.
 New! Best Applied Paper Award at Discovery Science 2015 for "Active Learning for Classifying Template Matches in Historical Maps." [PDF] [ Video] With Benedikt Budig.
 Best student contribution at Schematic Mapping 2014 for "An automated method for circulararc metro maps." [PDF] With Arthur van Goethem and Wouter Meulemans.
 Best paper at MapInteract 2014 for "Matching Labels and Markers in Historical Maps: an Algorithm with Interactive Postprocessing." With Benedikt Budig and Alexander Wolff.
 Best Fastforward Presentation and Runnerup Best Poster at ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems 2013 (ACMGIS) for "Accentuating Focus Maps via Partial Schematization." [PDF] With Arthur van Goethem, JanHenrik Haunert, Wouter Meulemans and Bettina Speckmann.
 Best Short Presentation at Web and Wireless GIS 2013 (W2GIS) for "A Probabilistic Model for Road Selection in Mobile Maps" [PPT] With JanHenrik Haunert.
Teaching
 WS16 Seminar Algorithms for Extracting Data from Historical Maps
 SS15 Lectures Algorithms for geographic information systems
 WS14 Seminar Visualisation of geographic networks
 SS14 Lectures Algorithms for geographic information systems
 WS13 Tutorials Approximation algorithms
 WS12 Tutorials Algorithms for geographic information systems
 SS12 Tutorials Exact algorithms
Publications
2019 [ to top ]

van Dijk, T.C.: AlgorithmicallyAssisted Metro Map Design. In: Roberts, M. and Nöllenburg, M. (eds.) Proc. 2nd Schematic Mapping Workshop (SMW 2019) (2019).[ BibTeX ]

Chaplick, S., van Dijk, T.C., Kryven, M., won Park, J., Ravsky, A., Wolff, A.: Bundled Crossings Revisited. 35th European Workshop on Computational Geometry (EuroCG 19) (2019).
2018 [ to top ]

Chan, T.M., van Dijk, T.C., Fleszar, K., Spoerhase, J., Wolff, A.: Stabbing Rectangles by Line Segments – How Decomposition Reduces the ShallowCell Complexity. Proc. 29th Ann. Int. Symp. Algorithms Comput. (ISAAC'18). p. 61:161:13. Schloss Dagstuhl  LeibnizZentrum für Informatik (2018).

van Dijk, T.C.: Aktives Lernen für Informationsextraktion aus historischen Karten. In: Meinel, G., Schumacher, U., Behnisch, M., and Krüger, T. (eds.) Flächennutzungsmonitoring X. pp. 181186. RHOMBOS (2018).

van Dijk, T.C., Lutz, D.: Realtime linear cartograms and metro maps. In: BanaeiKashani, F., Hoel, E.G., Güting, R.H., Tamassia, R., and Xiong, L. (eds.) SIGSPATIAL/GIS. pp. 488491. ACM (2018).

van Dijk, T.C., Greiner, T., den Heijer, B., Henning, N., Klesen, F., Löffler, A.: Wüpstream: efficient enumeration of upstream features (GIS cup). In: BanaeiKashani, F., Hoel, E.G., Güting, R.H., Tamassia, R., and Xiong, L. (eds.) SIGSPATIAL/GIS. pp. 626629. ACM (2018).

Barz, B., van Dijk, T.C., Spaan, B., Denzler, J.: Putting User Reputation on the Map: Unsupervised Quality Control for Crowdsourced Historical Data. 2nd ACM SIGSPATIAL Workshop on Geospatial Humanities (2018).
2017 [ to top ]

Budig, B., van Dijk, T.C.: Journeys of the Past: A Hidden Markov Approach to Georeferencing Historical Itineraries. In: Jones, C.B. and Purves, R.S. (eds.) GIR'17 Proceedings of the 11th Workshop on Geographic Information Retrieval. pp. 7:17:10. ACM (2017).

van Dijk, T.C., Wolff, A.: AlgorithmicallyGuided User Interaction. In: Hoel, E., Newsam, S.D., Ravada, S., Tamassia, R., and Trajcevski, G. (eds.) SIGSPATIAL'17 Proceedings of the 25th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems. pp. 11:111:4. ACM (2017).

van Dijk, T.C., Fink, M., Fischer, N., Lipp, F., Markfelder, P., Ravsky, A., Suri, S., Wolff, A.: Block Crossings in Storyline Visualizations. Journal of Graph Algorithms & Applications. 21, 873913 (2017).

van Dijk, T.C., Lipp, F., Markfelder, P., Wolff, A.: Computing Storyline Visualizations with Few Block Crossings. Proceedings of the 25th International Symposium on Graph Drawing and Network Visualization. (2017).
2016 [ to top ]

Budig, B., van Dijk, T.C., Kirchner, F.: Glyph Miner: A System for Efficiently Extracting Glyphs from Early Prints in the Context of OCR. In: Adam, N.R., Cassel, L. (B.), Yesha, Y., Furuta, R., and Weigle, M.C. (eds.) Proceedings of the 16th ACM/IEEECS on Joint Conference on Digital Libraries. p. 3134. ACM (2016).

Budig, B., van Dijk, T.C., Wolff, A.: Matching Labels and Markers in Historical Maps: an Algorithm with Interactive Postprocessing. Transactions on Spatial Algorithms and Systems. (2016).

van Dijk, T.C., Fink, M., Fischer, N., Lipp, F., Markfelder, P., Ravsky, A., Suri, S., Wolff, A.: Block Crossings in Storyline Visualizations. Proc. 24nd Int. Sympos. Graph Drawing. (2016).

Löffler, A., van Dijk, T.C., Wolff, A.: Snapping Graph Drawings to the Grid Optimally. Proc. 24nd Int. Sympos. Graph Drawing. (2016).
2015 [ to top ]

Budig, B., Dijk, T.C. van: Active Learning for Classifying Template Matches in Historical Maps. In: Japkowicz, N. and Matwin, S. (eds.) Discovery Science. pp. 3347. Springer International Publishing (2015).

Beckmann, L., Budig, B., van Dijk, T.C., Schamel, J.: There and Back Again: Using FréchetDistance Diagrams to Find Trajectory Turning Points. Proceedings of the 23rd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL 2015). p. 238241. ACM (2015).
2014 [ to top ]

van Dijk, T.C., Haunert, J.H.: Interactive focus maps using leastsquares optimization. International Journal of Geographical Information Science. 28, 20522075 (2014).

Chimani, M., van Dijk, T.C., Haunert, J.H.: How to Eat a Graph: Computing Selection Sequences for the Continuous Generalization of Road Networks. Proceedings of the 22st ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems. pp. 243252 (2014).

Budig, B., van Dijk, T.C., Wolff, A.: Matching Labels and Markers in Historical Maps: an Algorithm with Interactive Postprocessing. Proceedings of the 2nd ACM SIGSPATIAL International Workshop on MapInteraction. (2014).

Bekos, M.A., van Dijk, T.C., Fink, M., Kindermann, P., Kobourov, S.G., Pupyrev, S., Spoerhase, J., Wolff, A.: Improved Approximation Algorithms for Box Contact Representations. Proc. 22th Annual European Symposium on Algorithms (ESA'14). p. 8799 (2014).

van Dijk, T.C., van Goethem, A., Haunert, J.H., Meulemans, W., Speckmann, B.: Map Schematization with Circular Arcs. Geographic Information Science. 8728, 117 (2014).

van Dijk, T.C., van Goethem, A., Haunert, J.H., Meulemans, W., Speckmann, B.: An Automated Method for CircularArc Metro Maps. Schematic Mapping. (2014).[ BibTeX ]

Nederlof, J., van Rooij, J.M.M., van Dijk, T.C.: Inclusion/Exclusion Meets Measure and Conquer. Algorithmica. 69, 685740 (2014).
2013 [ to top ]

van Dijk, T.C., van Goethem, A., Haunert, J.H., Meulemans, W., Speckmann, B.: Accentuating Focus Maps via Partial Schematization. Proceedings of the 21st ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems. p. 428431. ACM, Orlando, Florida (2013).

van Dijk, T.C., Fleszar, K., Haunert, J.H., Spoerhase, J.: Road Segment Selection with Strokes and Stability. Proceedings of the 1st ACM SIGSPATIAL International Workshop on MapInteraction. p. 7277. ACM, Orlando, Florida (2013).

van Dijk, T.C., Haunert, J.H.: A Probabilistic Model for Road Selection in Mobile Maps. In: Liang, S.H.L., Wang, X., and Claramunt, C. (eds.) Web and Wireless Geographical Information Systems. pp. 214222. Springer Berlin Heidelberg (2013).
2011 [ to top ]

van den Akker, J.M., van Dijk, T.C., Hoogeveen, J.A., Toorop, T.: Optimizing Wireless Sensor Network Flow by Column Generation. Conference of the European Chapter on Combinatorial Optimization. (2011).[ BibTeX ]
2010 [ to top ]

Bodlaender, H.L., van Dijk, T.C.: A Cubic Kernel for Feedback Vertex Set and Loop Cutset. Theory of Computing Systems. 46, 566597 (2010).
2009 [ to top ]

van Rooij, J.M.M., Nederlof, J., van Dijk, T.C.: Inclusion/Exclusion Meets Measure and Conquer. In: Fiat, A. and Sanders, P. (eds.) Algorithms  ESA 2009. pp. 554565. Springer Berlin Heidelberg (2009).
2008 [ to top ]

Bodlaender, H., Tan, R., van Dijk, T.C., van Leeuwen, J.: Integer Maximum Flow in Wireless Sensor Networks with Energy Constraint. In: Gudmundsson, J. (ed.) Algorithm Theory  SWAT 2008. pp. 102113. Springer Berlin / Heidelberg (2008).
2007 [ to top ]

van Dijk, T.C.: Kernelization for Loop Cutset. (2007).