An algorithm for drawing general undirected graphs
Information Processing Letters
Multidimensional scaling for group memory visualization
Decision Support Systems - From information retrieval to knowledge management: enabling technologies and best practices
Concept decompositions for large sparse text data using clustering
Machine Learning
Self-Organizing Maps
Introduction to Modern Information Retrieval
Introduction to Modern Information Retrieval
Visual hierarchical dimension reduction for exploration of high dimensional datasets
VISSYM '03 Proceedings of the symposium on Data visualisation 2003
Force-transfer: a new approach to removing overlapping nodes in graph layout
ACSC '03 Proceedings of the 26th Australasian computer science conference - Volume 16
Studying cooperation and conflict between authors with history flow visualizations
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Steerable, Progressive Multidimensional Scaling
INFOVIS '04 Proceedings of the IEEE Symposium on Information Visualization
APVis '06 Proceedings of the 2006 Asia-Pacific Symposium on Information Visualisation - Volume 60
Quantitative analysis of thewikipedia community of users
Proceedings of the 2007 international symposium on Wikis
Ontology evaluation using wikipedia categories for browsing
Proceedings of the sixteenth ACM conference on Conference on information and knowledge management
Lifting the veil: improving accountability and social transparency in Wikipedia with wikidashboard
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Compute and storage clouds using wide area high performance networks
Future Generation Computer Systems
Visualizing activity on wikipedia with chromograms
INTERACT'07 Proceedings of the 11th IFIP TC 13 international conference on Human-computer interaction - Volume Part II
A Wikipedia-based multilingual retrieval model
ECIR'08 Proceedings of the IR research, 30th European conference on Advances in information retrieval
What did they do? Deriving high-level edit histories in Wikis
Proceedings of the 6th International Symposium on Wikis and Open Collaboration
What Wikipedia deletes: characterizing dangerous collaborative content
Proceedings of the 7th International Symposium on Wikis and Open Collaboration
Wikipedia world map: method and application of map-like wiki visualization
Proceedings of the 7th International Symposium on Wikis and Open Collaboration
Editorial: Special Issue on Advances in Computer Supported Collaboration: Systems and Technologies
Future Generation Computer Systems
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Volunteer-driven large-scale human-to-human collaboration has become common in the Web 2.0 era. Wikipedia is one of the foremost examples of such large-scale collaboration, involving millions of authors writing millions of articles on a wide range of subjects. The collaboration on some popular articles numbers hundreds or even thousands of co-authors. We have analyzed the co-authoring across entire Wikipedias in different languages and have found it to follow a geometric distribution in all the language editions we studied. In order to better understand the distribution of co-author counts across different topics, we have aggregated content by category and visualized it in a form resembling a geographic map. The visualizations produced show that there are significant differences of co-author counts across different topics in all the Wikipedia language editions we visualized. In this article we describe our analysis and visualization method and present the results of applying our method to the English, German, Chinese, Swedish and Danish Wikipedias. We have evaluated our visualization against textual data and found it to be superior in usability, accuracy, speed and user preference.