Unprojection: Leveraging inverse-projections for visual analytics of high-dimensional data

M Espadoto, G Appleby, A Suh… - … on Visualization and …, 2021 - ieeexplore.ieee.org
Projection techniques are often used to visualize high-dimensional data, allowing users to
better understand the overall structure of multi-dimensional spaces on a 2D screen …

[HTML][HTML] Controlling the scatterplot shapes of 2D and 3D multidimensional projections

A Machado, A Telea, M Behrisch - Computers & Graphics, 2024 - Elsevier
Multidimensional projections are effective techniques for depicting high-dimensional data.
The point patterns created by such techniques, or a technique's visual signature, depend …

Stability analysis of supervised decision boundary maps

AAAM Oliveira, M Espadoto, R Hirata Jr, AC Telea - SN Computer Science, 2023 - Springer
Understanding how a machine learning classifier works is an important task in machine
learning engineering. However, doing this is for any classifier in general difficult. We …

[PDF][PDF] Visual Exploration of Neural Network Projection Stability.

C Bredius, Z Tian, AC Telea, RN Mulawade, C Garth… - MLVis …, 2022 - diglib.eg.org
We present a method to visually assess the stability of deep learned projections. For this, we
perturb the high-dimensional data by controlled sequences and visualize the resulting …

[PDF][PDF] Evaluating Architectures and Hyperparameters of Self-supervised Network Projections.

T Cech, D Atzberger, W Scheibel, R Richter… - VISIGRAPP (3 …, 2023 - scitepress.org
Self-Supervised Network Projections (SSNP) are dimensionality reduction algorithms that
produce lowdimensional layouts from high-dimensional data. By combining an autoencoder …

Improving deep learning projections by neighborhood analysis

TS Modrakowski, M Espadoto, AX Falcão… - … Joint Conference on …, 2020 - Springer
Visualization of multidimensional data is a difficult task, for which there are many tools.
Among these tools, dimensionality reduction methods were shown to be particularly helpful …

HyperNP: Interactive Visual Exploration of Multidimensional Projection Hyperparameters

G Appleby, M Espadoto, R Chen, S Goree… - arXiv preprint arXiv …, 2021 - arxiv.org
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 …

Improving self-supervised dimensionality reduction: Exploring hyperparameters and pseudo-labeling strategies

AAAM Oliveira, M Espadoto, R Hirata Jr… - … Joint Conference on …, 2021 - Springer
Dimensionality reduction (DR) is an essential tool for the visualization of high-dimensional
data. The recently proposed Self-Supervised Network Projection (SSNP) method addresses …

Learning multidimensional projections with neural networks

M Espadoto - 2021 - research.rug.nl
In the wake of the revolution brought by Deep Learning, we believe neural networks can be
leveraged as a tool in the service of dimensionality reduction (DR) for understanding large …

[PDF][PDF] Improving Deep Learning Projections by Neighborhood Analysis

A Telea - academia.edu
Visualization of multidimensional data is a difficult task, for which there are many tools.
Among these tools, dimensionality reduction methods were shown to be particularly helpful …