Abstract
Huge amounts of movement data are nowadays being collected, as a consequence of the prevalence of mobile computing systems and location based services. While the research interest on the analysis of spatio-temporal data has also significantly increased, there are still several open challenges in areas such as interaction and information visualization. In this paper, we present the first steps of a research project that aims to study the usability of visualization techniques of mobility data. We present ST-TrajVis, an application for the visualization of movement data, based on the innovative combination of two popular techniques, namely a 2D map and a space-time cube, augmented with data processing techniques supporting the interaction with interesting subsets of the data. We conducted a user study to assess the usefulness of ST-TrajVis, and to obtain feedback regarding the users interaction with the different techniques. The results suggest the adequacy of the combination of 2D maps with space-time cubes, the existence of some features of interest to users, and the need to conduct further comparative studies between the different techniques.
Links
BibTeX (Download)
@inproceedings{gonccalves2013st,
title = {ST-TrajVis: interacting with trajectory data},
author = { Tiago Gonçalves and Ana Paula Afonso and Bruno Martins and Daniel Gonçalves},
url = {http://dl.acm.org/citation.cfm?id=2578106},
year = {2013},
date = {2013-01-01},
booktitle = {Proceedings of the 27th International BCS Human Computer Interaction Conference},
pages = {48},
organization = {British Computer Society},
abstract = {Huge amounts of movement data are nowadays being collected, as a consequence of the prevalence of mobile computing systems and location based services. While the research interest on the analysis of spatio-temporal data has also significantly increased, there are still several open challenges in areas such as interaction and information visualization. In this paper, we present the first steps of a research project that aims to study the usability of visualization techniques of mobility data. We present ST-TrajVis, an application for the visualization of movement data, based on the innovative combination of two popular techniques, namely a 2D map and a space-time cube, augmented with data processing techniques supporting the interaction with interesting subsets of the data. We conducted a user study to assess the usefulness of ST-TrajVis, and to obtain feedback regarding the users interaction with the different techniques. The results suggest the adequacy of the combination of 2D maps with space-time cubes, the existence of some features of interest to users, and the need to conduct further comparative studies between the different techniques. },
keywords = {2D Map, Interaction, Space-Time Cube, Spatio-temporal Data, Trajectories, Visualization},
pubstate = {published},
tppubtype = {inproceedings}
}