Improved Force-Directed Layouts
GD '98 Proceedings of the 6th International Symposium on Graph Drawing
ThemeRiver: Visualizing Theme Changes over Time
INFOVIS '00 Proceedings of the IEEE Symposium on Information Vizualization 2000
Information Visualization: Perception for Design
Information Visualization: Perception for Design
Usage patterns of collaborative tagging systems
Journal of Information Science
Exploring social annotations for the semantic web
Proceedings of the 15th international conference on World Wide Web
Getting our head in the clouds: toward evaluation studies of tagclouds
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The complex dynamics of collaborative tagging
Proceedings of the 16th international conference on World Wide Web
Towards effective browsing of large scale social annotations
Proceedings of the 16th international conference on World Wide Web
Tag clouds for summarizing web search results
Proceedings of the 16th international conference on World Wide Web
An assessment of tag presentation techniques
Proceedings of the 16th international conference on World Wide Web
TIMELINES: Tag clouds and the case for vernacular visualization
interactions - Changing energy use through design
Seeing things in the clouds: the effect of visual features on tag cloud selections
Proceedings of the nineteenth ACM conference on Hypertext and hypermedia
Overlapping Clustered Graphs: Co-authorship Networks Visualization
SG '08 Proceedings of the 9th international symposium on Smart Graphics
On the Beauty and Usability of Tag Clouds
IV '08 Proceedings of the 2008 12th International Conference Information Visualisation
Comparison of Tag Cloud Layouts: Task-Related Performance and Visual Exploration
INTERACT '09 Proceedings of the 12th IFIP TC 13 International Conference on Human-Computer Interaction: Part I
Hi-index | 0.00 |
Many online communities use TagClouds, an aesthetic and easy to understand visualization, to represent popular tags collaboratively generated by their users. However, due to the free nature of tagging, such collaborative tags have linguistic problems and limitations, such as high semantic density. Moreover, the alphabetical order of TagClouds poorly supports a hierarchical exploration among tags. This paper presents an exploration to support semantic understanding of collaborative tags beyond TagClouds. Based on the results of the authors' survey of practical usages of collaborative tags, they developed a visualization named TagClusters, in which tags are clustered into different groups, with font size representing tag popularity and the spatial distance indicating the semantic similarity between tags. The subgroups in each group and the overlap between groups are highlighted, illustrating the underlying hierarchical structure and semantic relations between groups. The authors conducted a comparative evaluation with TagClouds and TagClusters based on the same tag set. The results confirmed the advantage of TagClusters in facilitating browsing, comparing and comprehending semantic relations between tags.