The Effects of Landmark Uncertainty in VGI-based Maps: Approaches to Improve Wayfinding and Navigation Performance

基于 VGI 的地图中地标不确定性的影响：改善寻路和导航性能的方法

• 批准号: 314977345
• 负责人: Professor Dr. Frank Dickmann, since 9/2019
• 金额: --
• 依托单位: ITC - Faculty of Geo-Information Science and Earth Observation
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/314977345?language=en
• 关键词: Effects; Landmark; Uncertainty; VGI; based

The project aims at fostering our understanding of how the user experiences and copes with positional and thematic uncertainties in VGI-based map displays for wayfinding and navigation tasks. We will examine how landmark uncertainty affects wayfinding and pedestrian navigation performance of a user, and how cognitive principles and cartographic design can be used to overcome expected biases related to the characteristics of VGI data. Based on a series of experimental studies, empirical data (including eye-tracking data) will be collected for quantifying the bias introduced at the representational level due to landmark uncertainty. In addition, these studies will investigate the effectiveness of landmark signature design solutions based on MacEachren (1992) to control positional uncertainty. It can be assumed that in the context of map use related to wayfinding and navigation tasks, the visual implication of a landmark is most efficient when, besides its location, also its uncertainty is successfully conveyed. If the map user assumes that uncertainty is an inherent feature of a map then she/he is able to incorporate these implications when coping with incomplete or inaccurate maps. The project will examine whether maps can be designed in a way that suggests uncertainty to be represented implicitly. In consequence, the uncertainty present in the VGI data would be communicated to and thus made usable for the map reader. We expect to reveal that map users who adopt such a strategy for wayfinding tasks show higher flexibility in coping with thematic uncertainties and improved navigation performance. The findings of the proposed project will help improving our understanding of how characteristics of VGI data influence user interaction. Ultimately, this will contribute to enhancing VGI-based map design in future navigation applications.

该项目旨在促进我们对用户如何体验和应对基于VGI的地图显示中的位置和主题不确定性的理解，以用于寻路和导航任务。我们将研究地标的不确定性如何影响用户的寻路和步行导航性能，以及如何利用认知原理和地图设计来克服与VGI数据特征相关的预期偏差。在一系列实验研究的基础上，将收集经验数据(包括眼球跟踪数据)，以量化由于里程碑不确定性而在代表性水平上引入的偏差。此外，这些研究还将调查基于MacEachren(1992)的标志性签名设计解决方案在控制位置不确定性方面的有效性。可以假设，在与寻路和导航任务相关的地图使用环境中，地标的视觉含义最有效，除了它的位置之外，它的不确定性也被成功地传达出来。如果地图用户认为不确定性是地图的固有特征，则在处理不完整或不准确的地图时，他/她能够纳入这些含义。该项目将研究地图是否可以以一种暗示不确定性的方式进行设计。因此，VGI数据中存在的不确定性将被传达给地图阅读器，从而使其可用。我们预计，采用这种策略进行寻路任务的地图用户在应对专题不确定性方面表现出更高的灵活性，并改善了导航性能。拟议项目的结果将有助于我们更好地理解VGI数据的特征如何影响用户交互。最终，这将有助于在未来的导航应用中增强基于VGI的地图设计。