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CandidTree: visualizing structural uncertainty in similar hierarchies

机译:CandidTree:可视化相似层次结构中的结构不确定性

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摘要

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.
机译:大多数可视化系统无法传达数据中的不确定性。为了提供一种显示相似层次结构中不确定性的方法,我们将两个树结构之间的差异解释为不确定性。我们开发了一种名为CandidTree的新的交互式可视化系统,该系统将两棵树合并为一个,并可视化两种类型的结构不确定性:位置和子树结构不确定性。由于CandidTree可以可视化两个树结构之间的差异,因此我们对树比较任务进行了一系列用户研究。首先进行了可用性研究,以识别主要的可用性问题并评估我们的系统如何工作。进行了另一项定性用户研究,以查看经常使用分层组织名称工作的生物学家是否能够使用CandidTree,并评估我们使用的“不确定性”指标。进行了与软件工程师的对照实验,以比较CandidTree和WinDiff(传统的文件和文件夹比较工具)。结果表明,用户使用CandidTree的效果更好。此外,CandidTree的满意度更高,所有用户都更喜欢CandidTree而不是WinDiff。

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