کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8917933 | 1642800 | 2017 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparative eye-tracking evaluation of scatterplots and parallel coordinates
ترجمه فارسی عنوان
ارزیابی ردیابی مقایسه ای از صفحات پراکنده و مختصات موازی
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کلمات کلیدی
مختصات موازی، اسکناسها، مختصات دکارتی، ردیابی چشم، مطالعه مورد استفاده آزمایشگاهی کنترل شده،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
گرافیک کامپیوتری و طراحی به کمک کامپیوتر
چکیده انگلیسی
We investigate task performance and reading characteristics for scatterplots (Cartesian coordinates) and parallel coordinates. In a controlled eye-tracking study, we asked 24 participants to assess the relative distance of points in multidimensional space, depending on the diagram type (parallel coordinates or a horizontal collection of scatterplots), the number of data dimensions (2, 4, 6, or 8), and the relative distance between points (15%, 20%, or 25%). For a given reference point and two target points, we instructed participants to choose the target point that was closer to the reference point in multidimensional space. We present a visual scanning model that describes different strategies to solve this retrieval task for both diagram types, and propose corresponding hypotheses that we test using task completion time, accuracy, and gaze positions as dependent variables. Our results show that scatterplots outperform parallel coordinates significantly in 2Â dimensions, however, the task was solved more quickly and more accurately with parallel coordinates in 8Â dimensions. The eye-tracking data further shows significant differences between Cartesian and parallel coordinates, as well as between different numbers of dimensions. For parallel coordinates, there is a clear trend toward shorter fixations and longer saccades with increasing number of dimensions. Using an area-of-interest (AOI) based approach, we identify different reading strategies for each diagram type: For parallel coordinates, the participants' gaze frequently jumped back and forth between pairs of axes, while axes were rarely focused on when viewing Cartesian coordinates. We further found that participants' attention is biased: toward the center of the whole plotfor parallel coordinates and skewed to the center/left side for Cartesian coordinates. We anticipate that these results may support the design of more effective visualizations for multidimensional data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Visual Informatics - Volume 1, Issue 2, June 2017, Pages 118-131
Journal: Visual Informatics - Volume 1, Issue 2, June 2017, Pages 118-131
نویسندگان
Rudolf Netzel, Jenny Vuong, Ulrich Engelke, Seán O'Donoghue, Daniel Weiskopf, Julian Heinrich,