piwik-script

English Intern
    Lehrstuhl für Informatik I - Algorithmen und Komplexität

    Dr. Thomas van Dijk

    Lehrstuhl für Informatik I
    Universität Würzburg
    Am Hubland
    D-97074 Würzburg

    Raum: 01.002, Gebäude M4

    Tel.: +49 (0) 931-31-89040
    Fax: +49 (0) 931-31-825200

    Email: thomas.van.dijk@uni-wuerzburg.de

    Twitter: @tvdmaps GitHub: tcvdijk
    Youtube: YouTube    

    Forschung

    • Algorithmically-guided user interaction
    • Algorithms for Geographic Information Systems
    • Implementation; computational experiments
    • Exact algorithms (exponential-time / parameterised ...)

    Awards

    • 2. Platz aus 15 ($300), ACM SIGSPATIAL Cup 2018. For “Wüpstream: efficient enumeration of upstream features (GIS cup),’’ with Tobias Greiner, Bas den Heijer, Nadja Henning, Felix Klesen, and Andre Löffler.
    • Best Fast-forward Presentation at ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems 2018. For “Realtime linear cartograms and metro maps,” with Dieter Lutz.
    • Shortlist Junges Kolleg (Bayerische Akademie der Wissenschaften), Jahrgang 2017.
    • ACM Computing Review’s “Best of Computing” list of notable publications, 2016. For ”Matching Labels and Markers in Historical Maps: An Algorithm with
      Interactive Postprocessing,” with Benedikt Budig and Alexander Wolff.
    • Best Paper award, theory track, at the International Conference on Graph Drawing and Network Visualization. For “Block Crossings in Storyline Visualizations.” with Martin Fink, Norbert Fischer, Fabian Lipp, Peter Markfelder, Alex Ravsky, Subhash Suri, Alexander Wolff.
    • Best Poster Award Runners up at ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems 2015 (ACMGIS) for "There and Back Again: Using Fréchet-Distance Diagrams to Find Trajectory Turning Points.with Lukas Beckmann, Benedikt Budig and Johannes Schamel.
    • Best Applied Paper Award at Discovery Science 2015 for "Active Learning for Classifying Template Matches in Historical Maps." [PDF] [ Videowith Benedikt Budig.
    • Best student contribution at Schematic Mapping 2014 for "An automated method for circular-arc metro maps." [PDFwith 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 Fast-forward Presentation and Runner-up 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, Jan-Henrik 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 Jan-Henrik Haunert.

    Betreuung

    Doktorarbeit

    Masterarbeit

    • Maximilian Schmitt: Tourenplanung unter Berücksichtigung heterogener Metriken.
    • Andre Löffler: Snapping Graph Drawings to the Grid
    • Benedikt Budig: Algorithmische Analyse historischer Landkarten
    • Dieter Lutz: Realtime Linear Cartograms using Least-Squares Optimisation

    Bachelorarbeit

    • Fabian Sieper: Zuweisen von Kantenrichtungen in Metronetzen
    • Julian Walter: Rotation and scale invariant template matching for historical maps
    • Peter Markfelder: Optimale Zeichnungen von Storylines mit Blockkreuzungen
    • Martin Becker: String Matching von historischen Toponymen
    • Fabian Feitsch: From Many User-Contributed Polygons to One Polygon Consensus
    • Lukas Beckmann: Analyse von Umkehrpunkten auf GPS-Trajektorien unter Verwendung der Fréchet-Distanz

    Lehrveranstaltungen

     

     

    SS20 Vorlesung  Algorithmen für geographische Informationssysteme
      Seminar Algorithmen für Programmierwettbewerbe
    WS19 Vorlesung Algorithmische Geometrie
    SS19  Vorlesung  Algorithmen für geographische Informationssysteme
      Seminar Algorithmen für Programmierwettbewerbe
    SS18 Vorlesung  Algorithmen für geographische Informationssysteme
      Seminar Visualisierung von Graphen
    WS17 Vorlesung Exakte Algorithmen (vollständige Überarbeitung des Inhalts)
    SS17  Vorlesung Algorithmen für geographische Informationssysteme
      Seminar Algorithmen für Programmierwettbewerbe (inkl. Konzeption)
    WS16 Seminar Algorithmen zur Extraktion von Daten aus alten Landkarten
    SS16 Vorlesung Algorithmen für geographische Informationssysteme
    SS15 Vorlesung Algorithmen für geographische Informationssysteme
    WS14  Seminar Visualisierung von geografischen Netzwerken
    SS14  Vorlesung Algorithmen für geographische Informationssysteme
    WS13  Übungen zu Approximationsalgorithmen
    WS12  Übungen zu Algorithmen für geografische Informationssysteme
    SS12  Übungen zu Exakte Algorithmen

    Veröffentlichungen

    [ 2020 ] [ 2019 ] [ 2018 ] [ 2017 ] [ 2016 ] [ 2015 ] [ 2014 ] [ 2013 ] [ 2011 ] [ 2010 ] [ 2009 ] [ 2008 ] [ 2007 ]

    2020 [ nach oben ]

    • Chaplick, S., van Dijk, T.C., Kryven, M., Park, J.-W., Ravsky, A., Wolff, A.: Bundled Crossings Revisited. Journal of Graph Algorithms & Applications. 35 pages (2020).
       

    2019 [ nach oben ]

    • van Dijk, T.C., Löffler, A.: Practical Topologically Safe Rounding of Geographic Networks. In: Kashani, F.B., Trajcevski, G., Güting, R.H., Kulik, L., and Newsam, S.D. (eds.) Proceedings of the 27th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems. pp. 239-248. ACM (2019).
       
    • van Dijk, T.C.: Algorithmically-Assisted Metro Map Design. In: Roberts, M. and Nöllenburg, M. (eds.) Proc. 2nd Schematic Mapping Workshop (SMW 2019) (2019).
       
    • 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 [ nach oben ]

    • Chan, T.M., van Dijk, T.C., Fleszar, K., Spoerhase, J., Wolff, A.: Stabbing Rectangles by Line Segments – How Decomposition Reduces the Shallow-Cell Complexity. Proc. 29th Ann. Int. Symp. Algorithms Comput. (ISAAC'18). p. 61:1--61:13. Schloss Dagstuhl -- Leibniz-Zentrum 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. 181-186. RHOMBOS (2018).
       
    • van Dijk, T.C., Lutz, D.: Realtime linear cartograms and metro maps. In: Banaei-Kashani, F., Hoel, E.G., Güting, R.H., Tamassia, R., and Xiong, L. (eds.) SIGSPATIAL/GIS. pp. 488-491. 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: Banaei-Kashani, F., Hoel, E.G., Güting, R.H., Tamassia, R., and Xiong, L. (eds.) SIGSPATIAL/GIS. pp. 626-629. 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 [ nach oben ]

    • 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. 7:1-7:10. ACM (2017).
       
    • van Dijk, T.C., Wolff, A.: Algorithmically-Guided 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. 11:1-11:4. 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, 873--913 (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 [ nach oben ]

    • van Dijk, T.C., Haunert, J.-H., Oehrlein, J.: Location-dependent generalization of road networks based on equivalent destinations. Comput. Graph. Forum. 35, 451-460 (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).
       
    • 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).
       
    • 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/IEEE-CS on Joint Conference on Digital Libraries. p. 31--34. ACM (2016).
       

    2015 [ nach oben ]

    • Beckmann, L., Budig, B., van Dijk, T.C., Schamel, J.: There and Back Again: Using Fréchet-Distance Diagrams to Find Trajectory Turning Points. Proceedings of the 23rd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL 2015). p. 238--241. ACM (2015).
       
    • 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. 33-47. Springer International Publishing (2015).
       

    2014 [ nach oben ]

    • van Dijk, T.C., van Goethem, A., Haunert, J.-H., Meulemans, W., Speckmann, B.: Map Schematization with Circular Arcs. Geographic Information Science. 8728, 1-17 (2014).
       
    • Nederlof, J., van Rooij, J.M.M., van Dijk, T.C.: Inclusion/Exclusion Meets Measure and Conquer. Algorithmica. 69, 685-740 (2014).
       
    • van Dijk, T.C., van Goethem, A., Haunert, J.H., Meulemans, W., Speckmann, B.: An Automated Method for Circular-Arc Metro Maps. Schematic Mapping. (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. 87--99 (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).
       
    • 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. 243-252 (2014).
       
    • van Dijk, T.C., Haunert, J.-H.: Interactive focus maps using least-squares optimization. International Journal of Geographical Information Science. 28, 2052-2075 (2014).
       

    2013 [ nach oben ]

    • 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. 428--431. 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. 72--77. 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. 214-222. Springer Berlin Heidelberg (2013).
       

    2011 [ nach oben ]

    • 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).
       

    2010 [ nach oben ]

    • Bodlaender, H.L., van Dijk, T.C.: A Cubic Kernel for Feedback Vertex Set and Loop Cutset. Theory of Computing Systems. 46, 566-597 (2010).
       

    2009 [ nach oben ]

    • 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. 554-565. Springer Berlin Heidelberg (2009).
       

    2008 [ nach oben ]

    • 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. 102-113. Springer Berlin / Heidelberg (2008).
       

    2007 [ nach oben ]

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