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An Evaluation Method of visualization Using Visual Momentum Based on Eye-Tracking Data

INTERNATIONAL JOURNAL OF PATTERN RECOGNITION AND ARTIFICIAL INTELLIGENCE 2018年第5期32卷 1850016-1850016页

作者： Zhou, Xiaozhou Xue, Chengqi Zhou, Lei Niu, Yafeng Southeast Univ Sch Mech Engn Nanjing 211189 Jiangsu Peoples R China

A new method based on eye-tracking data visual momentum (VM) was introduced to quantitatively evaluate a dynamic interactive visualization interface. We extracted the dimensionless factors from the raw eye-tracking data, including the fixation time factor T, the saccade amplitude factor D and the fixation number factor N. A predictive regression model of VM was deduced by eye movement factors and the performance response time (RT). In Experiment 1, the experimental visualization materials were designed with six effectiveness levels according to design techniques proposed by Woods to improve VM (total replacement, fixed format data replacement, long shot, perceptual landmark and spatial representation) and were tested in six parallel subject groups. The coefficients of the regression model were calculated from the data of 42 valid subjects in Experiment 1. The mean VM of each group exhibited an increasing trend with an increase in design techniques. The data of the performance and eye tracking among the combined high VM group, middle VM group and low VM group indicated significant differences. The data analysis indicates that the results were consistent with the previous qualitative research of VM. We tested and verified this regression model in Experiment 2 with another dynamic interactive visualization. The results indicated that the VM calculated by the regression model was significantly correlated with the performance data. Therefore, the virtual parameter VM can be a quantitative indicator for evaluating dynamic visualization. It could be a useful evaluation method for the dynamic visualization in general working environments.

关键词： Eye tracking visual momentum dynamic interactive visualization regression model evaluation method

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Liquid 2D Scatter Space for file system browsing

Liquid 2D Scatter Space for file system browsing

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9th International Conference on Information Visualisation

作者： Waldeck, C Dept. Z3 (MIV: Mobile Information Visualization) Computer Graphics Center ZGDV Germany ZGDV Computer Graphics Center Dept. Z3 MIV (Mobile Information Visualization) 64283 Darmstadt Fraunhofer Str. 5 Germany

ISBN: (纸本)0769523978

This (video-) paper describes a user interface concept, which facilitates multidimensional visual queries, filtering and browsing of the file system at the same time by means of the "Liquid Scatter Space" (LSS) concept ([1] Waldeck 2004). The UI concept is based on an advanced star field display ([2] Ahlberg & Shneiderman 1994) using liquid browsing [1] and selection based (sketch-) queries. It allows realtime search and browsing at the same time (integrated into one single user interface) and can visualize the most important file system meta data dimensions simultaneously: 1. filename, 2. creation/modification date, 3. filesize, 4. filetype and 5. label. LSS provides very fast and easy visual data mining possibilities for the desktop and makes it possible to perceive complex dependencies between the most important file system meta data properties at a glance. It also overcomes the "hidden-deep-down-in-hierarchy-structures "-problem by making it possible to use folders for structuring but not being bound to them. This paper focuses on visual design and interaction aspects and emphasizes the importance of paying regard to visual interactive details for information visualization and interaction interfaces and the need of making it easy to use.

关键词： liquid browsing focus and context visual interactive information spaces mobile computing user interface design dynamic interactive visualization visual data mining file system browsing

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Mobile liquid 2D scatter space (ML2DSS)

Mobile liquid 2D scatter space (ML2DSS)

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8th International Conference on Information Visualisation

作者： Waldeck, C Balfanz, D ZGDV Computer Graphics Center Dept. Z3 (MIV) Germany ZGDV Computer Graphics Center Dept. Z3 MIV 64283 Darmstadt Fraunhofer Str. 5 Germany

ISBN: (纸本)0769521770

This (video-) paper describes a user interface concept, which facilitates browsing of comparably large amounts of information on small screens. The viewing concept is based on a visually optimized star field display ([1] Ahlberg & Shneiderman 1994) and is introducing new concepts like liquid browsing (an expansion lens with pressure controlled magnetic force simulation), selection based filtering and representation manipulation, multimotion behavior tagging, (interaction-) transparent spaces and continuous state animation. All this creates a very versatile information space with a liquid-like look and feel, which can be used in a very intuitive way, providing all the advantages of a mature interactive scatter plot and can easily be scaled to different screen sizes without any adjustment efforts. This paper focuses on visual design and interaction details and emphasizes the importance of the visual interactive quality for mobile information visualization.

关键词： liquid browsing visual interactive information spaces mobile computing user interface design dynamic interactive visualization

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