SketchPadN-D: WYDIWYG Sculpting and Editing in High-Dimensional Space

TL;DR

SketchPadND is an interactive tool that enables users to generate, visualize, and edit high-dimensional data directly through drawing and sculpting interfaces, enhancing testing and analysis of high-dimensional algorithms.

Contribution

It introduces WYDIWYG sculpting and editing paradigms for high-dimensional data, combining visualization and data generation in a unified, immersive interface.

Findings

Enables direct high-dimensional data creation and editing.

Supports two visualization paradigms: parallel coordinates and N-D polygon.

Demonstrates effectiveness in real data visualization scenarios.

Abstract

High-dimensional data visualization has been attracting much attention. To fully test related software and algorithms, researchers require a diverse pool of data with known and desired features. Test data do not always provide this, or only partially. Here we propose the paradigm WYDIWYGS (What You Draw Is What You Get). Its embodiment, Sketch Pad ND, is a tool that allows users to generate high-dimensional data in the same interface they also use for visualization. This provides for an immersive and direct data generation activity, and furthermore it also enables users to interactively edit and clean existing high-dimensional data from possible artifacts. Sketch Pad ND offers two visualization paradigms, one based on parallel coordinates and the other based on a relatively new framework using an N-D polygon to navigate in high-dimensional space. The first interface allows users to draw arbitrary profiles of probability density functions along each dimension axis and sketch shapes for data density and connections between adjacent dimensions. The second interface embraces the idea of sculpting. Users can carve data at arbitrary orientations and refine them wherever necessary. This guarantees the data generated is truly high-dimensional. We demonstrate our tool's usefulness in real data visualization scenarios.