PoPI: Glyph Designs for Collaborative Filtering on Interactive Tabletops
(this work was realised in 2014-2015)
Filtering data on a visualisation can be a challenge when multiple people work on a shared visualisation, for instance on an interactive tabletop. Visualisations can present data that satisfy the union of all user filters, or data lenses can provide individual views on parts of the data. To support per-user filters simultaneously across a shared visualisation, I explored different glyph approaches that complement data points with per-user filter status information.
This video gives a quick overview of the problem and the solution
I created a prototype with Kinect and a large interactive tabletop to show the feasibility of such a setup. But the important part of this research was the user experience: how should we visualise data points with this added positional data so that users clearly understand what data points belong to their filter actions?
I explored multiple glyph representations and performed user evaluations (timed tasks, interviews, questionnaires) with 4 data visualisation experts and 14 researchers and students.
Below a couple of examples of glyph designs