A Tablet + Augmented Reality Interface for Interactive Multiple Linear Regression with Geospatial Data

Abstract

AR headsets support large-area displays which make them suitable for immersive analytics. We explore using Microsoft HoloLens v2 for immersive geospatial analyses. We conducted three studies. The first study was about understanding how users navigate through large room-sized fields of glyphs as rendered by Gander. We compared two types of glyph-based visualizations: Polyline and Radial. Polyline induced more tablet-based panning movements while Radial encouraged more gaze movement. The second study compared Stacked against Radial. We found Stacked was helpful in terms of speed when the glyphs were far away, because the glyphs were already decomposed. In terms of accuracy, there were other external factors more important than the parallax effect. The third study was a walkthrough demonstration study. Experts were interviewed and interacted with Gander. In the end, we created a low-fidelity prototype for the updated version of Gander, using the results of the three studies.