Supplementary Material for "Principal Curve Sonification"

This paper describes a new approach to render sonifications for high-dimensional data, allowing the user to perceive the main structure of the data distribution. This is achieved by computing the principal curve of the data set, which is a trajectory that passes through the middle of the data and allows to define a time order on the data points. The sonification can be imagined as the time-variant auditory scene, perceived while moving along the principal curve. In this paper a method for computing principal curves is presented, the sonification concept is introduced and some sonification examples are given.

本文阐述了针对高维数据渲染音效化的一种新颖方法，该方法使用户能够感知数据分布的主导结构。通过计算数据集的主曲率，即穿过数据中间位置的轨迹，从而在数据点上定义时间顺序。音效化可以设想为随时间变化的听觉场景，在沿主曲率移动时感知。本文提出了一种计算主曲率的方法，介绍了音效化的概念，并提供了若干音效化示例。