The elements of graphing data
CHI '86 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
A node-positioning algorithm for general trees
Software—Practice & Experience
LISTEN: sounding uncertainty visualization
Proceedings of the 7th conference on Visualization '96
UFLOW: visualizing uncertainty in fluid flow
Proceedings of the 7th conference on Visualization '96
Glyphs for Visualizing Uncertainty in Vector Fields
IEEE Transactions on Visualization and Computer Graphics
Visualization of an Imperfect World
IEEE Computer Graphics and Applications
Visualizing Data with Bounded Uncertainty
INFOVIS '02 Proceedings of the IEEE Symposium on Information Visualization (InfoVis'02)
TreeJuxtaposer: scalable tree comparison using Focus+Context with guaranteed visibility
ACM SIGGRAPH 2003 Papers
A Next Step: Visualizing Errors and Uncertainty
IEEE Computer Graphics and Applications
Visualization of fuzzy data using generalized animation
VIS '92 Proceedings of the 3rd conference on Visualization '92
How users interact with biodiversity information using TaxonTree
Proceedings of the working conference on Advanced visual interfaces
Point-Based Probabilistic Surfaces to Show Surface Uncertainty
IEEE Transactions on Visualization and Computer Graphics
Toolkit Design for Interactive Structured Graphics
IEEE Transactions on Software Engineering
CandidTree: visualizing structural uncertainty in similar hierarchies
INTERACT'07 Proceedings of the 11th IFIP TC 13 international conference on Human-computer interaction - Volume Part II
Visualizing missing data: graph interpretation user study
INTERACT'05 Proceedings of the 2005 IFIP TC13 international conference on Human-Computer Interaction
Revealing uncertainty for information visualization
Information Visualization
A survey of multiple tree visualisation
Information Visualization
Visual comparison of hierarchically organized data
EuroVis'08 Proceedings of the 10th Joint Eurographics / IEEE - VGTC conference on Visualization
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Most visualization systems fail to convey uncertainty within data. To provide a way to show uncertainty in similar hierarchies, we interpreted the differences between two tree structures as uncertainty. We developed a new interactive visualization system called CandidTree that merges two trees into one and visualizes two types of structural uncertainty: location and sub-tree structure uncertainty. Since CandidTree can visualize the differences between two tree structures, we conducted a series of user studies with tree-comparison tasks. First a usability study was conducted to identify major usability issues and evaluate how our system works. Another qualitative user study was conducted to see if biologists, who regularly work with hierarchically organized names, are able to use CandidTree, and to assess the 'uncertainty' metric we used. A controlled experiment with software engineers was conducted to compare CandidTree with WinDiff, a traditional files and folders comparison tool. The results showed that users performed better with CandidTree. Furthermore, CandidTree received better satisfaction ratings and all users preferred CandidTree to WinDiff.