Evaluating user cognition of network diagrams

Edges crossing and nodes overlapping have a significant effect on the users’ recognition and comprehension of network diagrams. In this study, we propose a visual evaluation method for users’ cognition of network diagrams. First, this method carries out a set of cognitive experiments to collect the...

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Main Authors: Xiaojiao Chen, Xiaoteng Tang, Zijing Luo, Jiayi Zhang
Format: Article
Language:English
Published: Elsevier 2021-12-01
Series:Visual Informatics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2468502X21000620
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author Xiaojiao Chen
Xiaoteng Tang
Zijing Luo
Jiayi Zhang
author_facet Xiaojiao Chen
Xiaoteng Tang
Zijing Luo
Jiayi Zhang
author_sort Xiaojiao Chen
collection DOAJ
description Edges crossing and nodes overlapping have a significant effect on the users’ recognition and comprehension of network diagrams. In this study, we propose a visual evaluation method for users’ cognition of network diagrams. First, this method carries out a set of cognitive experiments to collect the user’s cognitive performance that affects the variables, including accuracy and response time. The user’s pupil diameter is measured through an eye tracker to reflect their cognitive load. Second, the significance test points out the visual features as independent variables and then establishes an evaluation regression model. The experimental results show that the number of edges, edge length, node visual interference, and edge occlusion contribute to the evaluation models of response time, and edge occlusion and the number of node connections contribute to the accuracy model. Finally, these evaluation models demonstrate good predictability when assessing users’ cognition of network diagrams and provide practical recommendations for their use.
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spelling doaj.art-d3e995955ae542aeaa909a805ceb4af52022-12-21T21:36:05ZengElsevierVisual Informatics2468-502X2021-12-01542633Evaluating user cognition of network diagramsXiaojiao Chen0Xiaoteng Tang1Zijing Luo2Jiayi Zhang3School of Art and Archaeology, Zhejiang University, Hangzhou, china; Corresponding author.School of Art and Archaeology, Zhejiang University, Hangzhou, china; College of Computer Science and Technology, Zhejiang University, Hang zhou, ChinaSchool of Mechanical Engineering, Southeast University, Nanjing, ChinaSchool of Art and Archaeology, Zhejiang University, Hangzhou, china; College of Computer Science and Technology, Zhejiang University, Hang zhou, ChinaEdges crossing and nodes overlapping have a significant effect on the users’ recognition and comprehension of network diagrams. In this study, we propose a visual evaluation method for users’ cognition of network diagrams. First, this method carries out a set of cognitive experiments to collect the user’s cognitive performance that affects the variables, including accuracy and response time. The user’s pupil diameter is measured through an eye tracker to reflect their cognitive load. Second, the significance test points out the visual features as independent variables and then establishes an evaluation regression model. The experimental results show that the number of edges, edge length, node visual interference, and edge occlusion contribute to the evaluation models of response time, and edge occlusion and the number of node connections contribute to the accuracy model. Finally, these evaluation models demonstrate good predictability when assessing users’ cognition of network diagrams and provide practical recommendations for their use.http://www.sciencedirect.com/science/article/pii/S2468502X21000620Network diagramShortest pathEye trackingCognitive evaluation
spellingShingle Xiaojiao Chen
Xiaoteng Tang
Zijing Luo
Jiayi Zhang
Evaluating user cognition of network diagrams
Visual Informatics
Network diagram
Shortest path
Eye tracking
Cognitive evaluation
title Evaluating user cognition of network diagrams
title_full Evaluating user cognition of network diagrams
title_fullStr Evaluating user cognition of network diagrams
title_full_unstemmed Evaluating user cognition of network diagrams
title_short Evaluating user cognition of network diagrams
title_sort evaluating user cognition of network diagrams
topic Network diagram
Shortest path
Eye tracking
Cognitive evaluation
url http://www.sciencedirect.com/science/article/pii/S2468502X21000620
work_keys_str_mv AT xiaojiaochen evaluatingusercognitionofnetworkdiagrams
AT xiaotengtang evaluatingusercognitionofnetworkdiagrams
AT zijingluo evaluatingusercognitionofnetworkdiagrams
AT jiayizhang evaluatingusercognitionofnetworkdiagrams