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      Why not both? – Combining 2D maps and 3D space-time cubes for human trajectory data visualization

      1 , 2 , 1 , 2
      Proceedings of the 30th International BCS Human Computer Interaction Conference (HCI)
      11 - 15 July 2016
      Spatio-temporal data, trajectories, information visualization, visual analytics, space-time cube, 2d map, usability


            Throughout the years, researchers have tried to understand dynamics and general patterns associated with human movement, e.g. in the context of urban planning, to improve the lives of citizens. To do this, it is necessary to properly analyse the spatio-temporal and the thematic properties of their trajectory data. Thematic maps, particularly 2D maps and 3D space-time cubes (STCs), are among the most common approaches to analyse and visualize these data. Previous research attests to the usefulness of these visualization techniques in different types of tasks. However, it is unlikely that the analysis of trajectories will be always limited to a specific type of task, thus, motivating additional studies to evaluate the dis/advantages of combining both techniques, within the same view/interaction context. In this paper, we address this specific challenge, by presenting a comparative study between three prototypes, one using a 2D map, one using a STC, and one combining both techniques, for the visualization of trajectories. Our results support previous studies’ conclusions, by showing the advantages of 2D maps and STCs for spatial and spatio-temporal tasks, respectively. They also point out towards the advantages of using both techniques together, as users seem to prefer this alternative and are able to complete different types of tasks accurately, despite the increasing complexity of the visualization.


            Author and article information

            July 2016
            July 2016
            : 1-10
            [1 ] LaSIGE, Faculdade de Ciências, Universidade de Lisboa, Portugal
            [2 ] INESC-ID, Instituto Superior Técnico, Universidade de Lisboa
            © Goncalves et al. Published by BCS Learning and Development Ltd. Proceedings British HCI 2016 - Fusion, Bournemouth, UK.

            This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

            Proceedings of the 30th International BCS Human Computer Interaction Conference
            Bournemouth University, Poole, UK
            11 - 15 July 2016
            Electronic Workshops in Computing (eWiC)

            1477-9358 BCS Learning & Development

            Self URI (article page): https://www.scienceopen.com/hosted-document?doi=10.14236/ewic/HCI2016.22
            Self URI (journal page): https://ewic.bcs.org/
            Electronic Workshops in Computing

            Applied computer science,Computer science,Security & Cryptology,Graphics & Multimedia design,General computer science,Human-computer-interaction
            Spatio-temporal data,information visualization,2d map,visual analytics,space-time cube,usability,trajectories


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