Using treemaps for variable selection in spatio-temporal visualisation
Information Visualization
CGD --- A New Algorithm to Optimize Space Occupation in Ellimaps
INTERACT '09 Proceedings of the 12th IFIP TC 13 International Conference on Human-Computer Interaction: Part II
Visualizing cooperative activities with ellimaps: the case of Wikipedia
CDVE'09 Proceedings of the 6th international conference on Cooperative design, visualization, and engineering
Proceedings of the International Conference on Advanced Visual Interfaces
MuVis: an application for interactive exploration of large music collections
Proceedings of the international conference on Multimedia
A personal photograph browser for life log analysis based on location, time, and person
Proceedings of the 2011 ACM Symposium on Applied Computing
Adjacency-preserving spatial treemaps
WADS'11 Proceedings of the 12th international conference on Algorithms and data structures
JigsawMap: connecting the past to the future by mapping historical textual cadasters
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Space-in-time and time-in-space self-organizing maps for exploring spatiotemporal patterns
EuroVis'10 Proceedings of the 12th Eurographics / IEEE - VGTC conference on Visualization
Exploratory Search and Content Discovery: The Semantic Media Browser (SMB)
Proceedings of the 13th International Conference on Knowledge Management and Knowledge Technologies
Hi-index | 0.00 |
Existing treemap layout algorithms suffer to some extent from poor or inconsistent mappings between data order and visual ordering in their representation, reducing their cognitive plausibility. While attempts have been made to quantify this mismatch, and algorithms proposed to minimize inconsistency, solutions provided tend to concentrate on one-dimensional ordering. We propose extensions to the existing squarified layout algorithm that exploit the two-dimensional arrangement of treemap nodes more effectively. Our proposed spatial squarified layout algorithm provides a more consistent arrangement of nodes while maintaining low aspect ratios. It is suitable for the arrangement of data with a geographic component and can be used to create tessellated car tograms for geovisualization. Locational consistency is measured and visualized and a number of layout algorithms are compared. CIELab color space and displacement vector overlays are used to assess and emphasize the spatial layout of treemap nodes. A case study involving locations of tagged photographs in the Flickr database is described.