Dynamic Graphics for the Data Analysis and Perception

在本研究中，我们旨在探讨动态图形统计数据分析中人类视觉识别数据表示的特征。为了进行研究，我们重点研究了两个课题；将调查人员一直致力于的图形数据分析系统进行扩展，以满足执行任务和调查感知的需要，并使用该系统进行视觉显示。为了评估数据显示的视觉感知，我们实现了创建适当图片的能力，以评估数据的某些方面，以及记录和重播系统用户操作的设施。这些功能本身对于系统支持数据分析是必不可少的。对于处理动态图形的系统，我们必须特别注意存储记录和基于记录重新显示视图的技术问题。在1996年的第14届>大分统计会议上报告了实施的问题，技术细节载于1998年“大分大学工程学院报告”的两篇论文。在该系统上，我们对散点图中的数据进行了感知实验。研究了静态和动态图形中“形状”、“颜色”、“亮度”和“终止”等数据表示属性对数据组大小判断的影响。目标变量为反应时间和反应的准确性。我们证实了动态运动的图形在属性上有一些特殊的特征，并确定了对感知的几个影响。

In this research, we aimed to investigate characteristics of human visual recognition of representation of data in statistical data analysis with dynamic graphics. In order to pursue the study, we focused on two subject ; the extension of the graphical data analysis system, which the investigators have been working on, to meet the needs to pursue the task and the investigation of the perception to the visual display with the system.In order to assess the visual perception for the data display, we have implemented capability to create proper pictures to evaluate certain aspects of the data and facilities to record and replay the maneuver of the user of the system. These functions themselves are essential for the system to support the data analysis. For the system dealing with dynamic graphics, we had to pay special attention to the technical issues of storing the record and re-displaying views based on the record. Issues of the implementation were reported at the 14^<th> Oita Statistical Meeting in 1996 and technical details are given in two papers in "Reports of the Faculty of Engineering Oita University" in 1998.On the system, we conducted experiments of the perception for the data in scatter plots. The effects of data representation attributes, such as "shape", "color", "brightness" and "termination", on judging sezes of data groups are examined in stationary and dynamic graphics. Target variables were response time and accuracy of the response. We confirmed that graphs with dynamic motion had some peculiar characteristics on the attributes and identified several of the effects on the perception.