期刊
VISUAL INFORMATICS
卷 1, 期 1, 页码 57-64出版社
ELSEVIER
DOI: 10.1016/j.visinf.2017.01.007
关键词
Spatio-temporal data; Flow map; Urban mobility
类别
资金
- Huawei Technologies Noah's Ark Lab [YBCB200904144]
- HK RGC [GRF 16241916]
The advanced telecom technologies and massive volumes of intelligent mobile phone users have yielded a huge amount of real-time data of people's all-in-one telecommunication records, which we call telco big data. With telco data and the domain knowledge of an urban city, we are now able to analyze the movement and contact patterns of humans in an unprecedented scale. Flow map is widely used to display the movements of humans from one single source to multiple destinations by representing locations as nodes and movements as edges. However, it fails the task of visualizing both movement and contact data. In addition, analysts often need to compare and examine the patterns side by side, and do various quantitative analysis. In this work, we propose a novel spatio-temporal flow map layout to visualize when and where people from different locations move into the same places and make contact. We also propose integrating the spatiotemporal flow maps into existing spatiotemporal visualization techniques to form a suite of techniques for visualizing the movement and contact patterns. We report a potential application the proposed techniques can be applied to. The results show that our design and techniques properly unveil hidden information, while analysis can be achieved efficiently. (C) 2017 Published by Elsevier B.V. on behalf of Zhejiang University and Zhejiang University Press.
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