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We propose the use of virtual environments to simulate augmented reality (AR) systems for the purposes of experimentation and usability evaluation. This method allows complete control in the AR environment, providing many advantages over testing with true AR systems. We also discuss some of the limitations to the simulation approach. We have demonstrated(More)
Researchers have proposed that immersion could have advantages for tasks involving abstract mental activities , such as conceptual learning; however, there are few empirical results that support this idea. We hypothesized that higher levels of immersion would benefit such tasks if the mental activity can be mapped to objects or locations in a 3D(More)
Because effective navigation in 3D virtual environments (VEs) depends on the specifics of the travel techniques and the display system, we compared two travel techniques (steering and target-based) and two display conditions—a high-fidelity setup (a four-wall display with stereo and head-tracking) and a lower-fidelity setup (a single wall display without(More)
Spatial judgments are important for many real-world tasks in engineering and scientific visualization. While existing research provides evidence that higher levels of display and interaction fidelity in virtual reality systems offer advantages for spatial understanding, few investigations have focused on small-scale spatial judgments or employed(More)
While the primary goal of visual analytics research is to improve the quality of insights and findings, a substantial amount of research in provenance has focused on the history of changes and advances throughout the analysis process. The term, provenance, has been used in a variety of ways to describe different types of records and histories related to(More)
Researchers have proposed that immersion could have advantages for tasks involving abstract mental activities, such as conceptual learning; however, there are few empirical results that support this idea. We hypothesized that higher levels of immersion would benefit such tasks if the mental activity can be mapped to objects or locations in a 3D environment.(More)
Immersive display features can improve performance for tasks involving 3D, but determining which types of spatial analysis tasks are affected by immersive display features for different applications is not simple. This research adds to the knowledge of how the level of display fidelity (i.e., the realism provided by the display output) affects task(More)
Provenance tools can help capture and represent the history of analytic processes. In addition to supporting analytic performance, provenance tools can be used to support memory of the process and communication of the steps to others. Objective evaluation methods are needed to evaluate how well provenance tools support analysts' memory and communication of(More)
1875-9521/$ see front matter 2011 International doi:10.1016/j.entcom.2011.03.002 ⇑ Corresponding author. Tel.: +1 540 230 6634. E-mail address: rymcmaha@vt.edu (R.P. McMahan While commercial, off-the-shelf video games have been used often to observe cognitive and social phenomena, few studies have taken advantage of such games as research tools for(More)