Meta Parallel Coordinates for Visualizing Features in Large, HighDimensional, Timevarying Data
Managing computational complexity and designing effective visual representations are two important challenges for the visualization of large, complex, highdimensional datasets. Parallel coordinates are an effective technique for visualizing highdimensional data, but do not scale well to very large datasets. The addition of the tempo ral dimension leads to more uncertainty due to clutter on screen. Consequently, this poses a significant challenge for visually find ing trends and patterns that maximize insight about the underlying timevarying properties of the data. To address these problems, we present meta parallel coordinates, a parallel coordinates display that is guided by perceptually motivated visual metrics. These metrics describe the visual structures typically found in parallel coordinates and thus aid the user’s analysis by providing meaningful views of the data. Since they are computed in screen space, our metrics are computationally more efficient than databased metrics. Our choice of metrics is driven by the different analytical tasks that a user typically wants to perform with timevarying multivariate data. In particular, we have worked with domain scientists who performed simulations of bioremediation experiments, and use their data and results to demonstrate the usefulness of our approach.

Meta Parallel Coordinates for Visualizing Features in Large, HighDimensional, Timevarying Data. In Symposium on LargeScale Data Analysis and Visualization (LDAV), pp. 85–89, 2012 Abstract PDF DOI