Visualizing Cooperative Activities with Ellimaps: The Case of Wikipedia

  • Benoît Otjacques
  • Maël Cornil
  • Fernand Feltz
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5738)


Cooperation has become a key word in the emerging Web 2.0 paradigm. The nature and motivations of the various behaviours related to this type of cooperative activities remain however incompletely understood. The information visualization tools can play a crucial role from this perspective to analyse the collected data. This paper presents a prototype allowing visualizing some data about the Wikipedia history with a technique called ellimaps. In this context the recent CGD algorithm is used in order to increase the scalability of the ellimaps approach.


Information Visualization Visualization of Cooperation Ellimaps Hierarchies Visualization Wikipedia 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Giles, G.: Internet encyclopaedias go head to head. Nature 438(7070), 900–901 (2005)CrossRefGoogle Scholar
  2. 2.
    Kittur, A., Suh, B., Chi, E.D.: Can you Ever Trust a Wiki? Impacting Perceived Trustworthiness in Wikipedia. In: Proceedings of ACM Conference on Computer-Supported Cooperative Work 2008 (CSCW 2008), San Diego, California, November 8-12 (2008)Google Scholar
  3. 3.
    Viégas, F.B., Wattenberg, M., Dave, K.: Studying Cooperation and Conflict between Authors with history flow Visualizations. In: Proceedings of ACM Conference on Human Factors in Computing Systems 2004 (CHI 2004), Vienna, Austria, April 24-29 (2004)Google Scholar
  4. 4.
    Suh, B., Chi, E., Kittur, A., Pendleton, B.: Lifting the Veil: Improving Accountability and Social Transparency in Wikipedia with WikiDashBoard. In: Proceedings of ACM Conference on Human Factors in Computing Systems 2008 (CHI 2008), Florence, Italy, April 5-10 (2008)Google Scholar
  5. 5.
    Yang, X., Asur, S., Parthasarathy, S.: A Visual-Analytic Toolkit for Dynamic Interaction Graphs. In: Proceedings of ACM International Conference on Knowledge Discovery and Data Mining (KDD 2008), Las Vegas, USA, August 24-27 (2008)Google Scholar
  6. 6.
    Nguyen, Q.V., Huang, M.L., Zhang, K., Yen, I.-L.: A Visualization Model for Web Sitemaps. In: Proceedings of the International Conference on Computer Graphics, Imaging and Visualization (CGIV 2006), Sydney, Australia, July 26-28, IEEE CS, Los Alamitos (2006)Google Scholar
  7. 7.
    Palmer, S.E., Rock, I.: Rethinking perceptual organization: The role of uniform connectedness. Psychonomic Bulletin and Review 1(1), 29–55 (1994)CrossRefGoogle Scholar
  8. 8.
    Lee, B., Parr, C.S., Plaisant, C., Bederson, B., Veksler, V.D., Gray, W.D., Kotfila, C.: TreePlus: Interactive Exploration of Networks with Enhanced Tree Layouts. IEEE Transactions on Visualization and Computer Graphics 12(6), 1414–1426 (2006)CrossRefGoogle Scholar
  9. 9.
    Palmer, S.E.: Common Region: A new principle of perceptual grouping. Cognitive Psychology 24, 436–447 (1992)CrossRefGoogle Scholar
  10. 10.
    Shneiderman, B.: Tree Visualization with Tree-Maps: 2-d Space-Filling Approach. ACM Transactions on Graphics 11(1), 92–99 (1992)CrossRefzbMATHGoogle Scholar
  11. 11.
    Balzer, M., Deussen, O., Lewerentz, C.: Voronoi Treemaps for the Visualization of Software Metrics. In: Proceedings of the ACM Symposium on Software Visualization 2005 (SoftVis 2005), St Louis, Missouri, May 14-15 (2005)Google Scholar
  12. 12.
    Wood, J., Dykes, J.: Spatially Ordered Treemaps. IEEE Transactions on Visualization and Computer Graphics 14(6), 1348–1355 (2008)CrossRefGoogle Scholar
  13. 13.
    Otjacques, B., Collin, P., Feltz, F., Noirhomme, M.: Ellimaps: une technique basée sur la loi d’inclusion pour représenter des hiérarchies avec nœuds pondérés (in french). Revue d’Intelligence Artificielle 22(3-4), 303–330 (2008)Google Scholar
  14. 14.
    Vliegen, R., van Wijk, J.J., van der Linden, E.: Visualizing Business Data with Generalized Treemaps. IEEE Transactions on Visualization and Computer Graphics 12(5), 789–796 (2006)CrossRefGoogle Scholar
  15. 15.
    Nguyen, Q.V., Huang, M.L.: Space-Optimized Tree: a connection + enclosure approach for the visualization of large hierarchies. Information Visualization 2(1), 3–15 (2003)CrossRefGoogle Scholar
  16. 16.
    Otjacques, B., Cornil, M., Noirhomme, M., Feltz, F.: CGD – A new algorithm to optimize space occupation in ellimaps. In: Proceedings of IFIP TC13 Conference in Human-Computer Interaction (Interact 2009), Uppsala, Sweden, August 24-28, Springer, Berlin (2009)Google Scholar
  17. 17.
    Otjacques, B., Noirhomme, M., Feltz, F.: Innovative visualization to monitor scientific cooperative activities. In: Proceedings of 4th International Conference on Cooperative Design, Visualization and Engineering (CDVE 2007), Shanghai, China, September 16-20. Springer, Berlin (2007)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Benoît Otjacques
    • 1
  • Maël Cornil
    • 1
  • Fernand Feltz
    • 1
  1. 1.Department ISC – Informatics, Systems and CollaborationPublic Research Center – Gabriel LippmannBelvauxLuxembourg

Personalised recommendations