Visual Similarity Perception of Directed Acyclic Graphs: A Study on Influencing Factors
Visual Similarity Perception of Directed Acyclic Graphs: A Study on Influencing Factors
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DOI：
10.1007/978-3-319-73915-1_20
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发表时间：
2017-09
期刊：
影响因子：
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通讯作者：
K. Ballweg;M. Pohl;Günter Wallner;T. V. Landesberger
中科院分区：
文献类型：
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作者：
K. Ballweg;M. Pohl;Günter Wallner;T. V. Landesberger
虽然有向无环图（dag）的视觉比较通常在各个学科（例如，金融，生物学）中遇到，但关于人类对图相似性感知的知识目前相当有限。通过图形相似度感知，我们指的是人类如何感知图形的共性和差异，并由此得出相似度判断。作为填补这一空白的一步，本文报道的研究努力确定影响dag相似性感知的因素。特别是，我们进行了一项卡片分类研究，采用定性和定量分析方法来确定(1)参与者认为相似的dag组和(2)他们选择组背后的原因。我们的研究结果表明，相似度主要受层数、层上节点数和图的整体形状的影响。
While visual comparison of directed acyclic graphs (DAGs) is commonly encountered in various disciplines (e.g., finance, biology), knowledge about humans’ perception of graph similarity is currently quite limited. By graph similarity perception we mean how humans perceive commonalities and differences in graphs and herewith come to a similarity judgment. As a step toward filling this gap the study reported in this paper strives to identify factors which influence the similarity perception of DAGs. In particular, we conducted a card-sorting study employing a qualitative and quantitative analysis approach to identify (1) groups of DAGs that are perceived as similar by the participants and (2) the reasons behind their choice of groups. Our results suggest that similarity is mainly influenced by the number of levels, the number of nodes on a level, and the overall shape of the graph.