HyperNP: Interactive Visual Exploration of Multidimensional Projection Hyperparameters
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Date
2022
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association and John Wiley & Sons Ltd.
Abstract
Projection algorithms such as t-SNE or UMAP are useful for the visualization of high dimensional data, but depend on hyperparameters which must be tuned carefully. Unfortunately, iteratively recomputing projections to find the optimal hyperparameter values is computationally intensive and unintuitive due to the stochastic nature of such methods. In this paper we propose HyperNP, a scalable method that allows for real-time interactive hyperparameter exploration of projection methods by training neural network approximations. A HyperNP model can be trained on a fraction of the total data instances and hyperparameter configurations that one would like to investigate and can compute projections for new data and hyperparameters at interactive speeds. HyperNP models are compact in size and fast to compute, thus allowing them to be embedded in lightweight visualization systems. We evaluate the performance of HyperNP across three datasets in terms of performance and speed. The results suggest that HyperNP models are accurate, scalable, interactive, and appropriate for use in real-world settings.
Description
CCS Concepts: Human-centered computing --> Visualization techniques
@article{10.1111:cgf.14531,
journal = {Computer Graphics Forum},
title = {{HyperNP: Interactive Visual Exploration of Multidimensional Projection Hyperparameters}},
author = {Appleby, Gabriel and Espadoto, Mateus and Chen, Rui and Goree, Samuel and Telea, Alexandru C. and Anderson, Erik W. and Chang, Remco},
year = {2022},
publisher = {The Eurographics Association and John Wiley & Sons Ltd.},
ISSN = {1467-8659},
DOI = {10.1111/cgf.14531}
}