A user study on visualizing directed edges in graphs
A user study on visualizing directed edges in graphs
复制标题
关于可视化图中有向边的用户研究
DOI：
10.1145/1518701.1519054
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
J. V. Wijk
中科院分区：
文献类型：
--
作者：
Danny Holten;J. V. Wijk
图形通常使用节点链接表示法来可视化：顶点被描述为点，边被描述为连接两个顶点的(多边形)线。从顶点A到B的有向边通常使用箭头表示法可视化：在顶点B处带有三角形箭头的(多边形)线。虽然此表示法直观，但不能保证用户能够尽可能快速且明确地确定边的方向；显示较少遮挡和视觉混乱的替代表示法可能更适合。为了研究这一点，我们开发了另外五个使用形状和颜色组合的有向边表示法。我们进行了一项用户研究，受试者使用这些表示及其组合在一组图表上执行不同的任务，以考察哪种表示在速度和准确性方面是最好的。我们提出了我们的初始假设，用户研究的结果，以及关于定向边缘可视化的建议。
Graphs are often visualized using node-link representations: vertices are depicted as dots, edges are depicted as (poly)lines connecting two vertices. A directed edge running from vertex A to B is generally visualized using an arrow representation: a (poly)line with a triangular arrowhead at vertex B. Although this representation is intuitive, it is not guaranteed that a user is able to determine edge direction as quickly and unambiguously as possible; alternative representations that exhibit less occlusion and visual clutter might be better suited. To investigate this, we developed five additional directed-edge representations using combinations of shape and color. We performed a user study in which subjects performed different tasks on a collection of graphs using these representations and combinations thereof to investigate which representation is best in terms of speed and accuracy. We present our initial hypotheses, the outcome of the user studies, and recommendations regarding directed-edge visualization.