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Open AccessArticle

Multilevel Visualization of Travelogue Trajectory Data

Department of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100190, China
The Key Laboratory of Technology in Geo-Spatial Information Processing and Application System, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China
Author to whom correspondence should be addressed.
ISPRS Int. J. Geo-Inf. 2018, 7(1), 12;
Received: 24 October 2017 / Revised: 20 December 2017 / Accepted: 22 December 2017 / Published: 3 January 2018
User-generated travelogues can generate much geographic data, containing abundant semantic and geographic information that reflects people’s movement patterns. The tourist movement patterns in travelogues can help others when planning trips, or understanding how people travel within certain regions. The trajectory data in travelogues might include tourist attractions, restaurants and other locations. In addition, all travelogues generate a trajectory, which has a large volume. The variety and volume of trajectory data make it very hard to directly find patterns contained within them. Moreover, existing work about movement patterns has only explored the simple semantic information, without considering using visualization to find hidden information. We propose a multilevel visual analytical method to help find movement patterns in travelogues. The data characteristic of a single travelogue are different from multiple travelogues. When exploring a single travelogue, the individual movement patterns comprise our main concern, like semantic information. While looking at many travelogues, we focus more on the patterns of population movement. In addition, when choosing the levels for multilevel aggregation, we apply an adaptive method. By combining the multilevel visualization in a single travelogue and multiple travelogues, we can better explore the movement patterns in travelogues. View Full-Text
Keywords: travelogue trajectory; aggregation visualization; multilevel; trajectory compression; edge bundling travelogue trajectory; aggregation visualization; multilevel; trajectory compression; edge bundling
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Ma, Y.; Wang, Y.; Xu, G.; Tai, X. Multilevel Visualization of Travelogue Trajectory Data. ISPRS Int. J. Geo-Inf. 2018, 7, 12.

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