DeepAI
Log In Sign Up

Interactive Dimensionality Reduction for Comparative Analysis

06/29/2021
by   Takanori Fujiwara, et al.
21

Finding the similarities and differences between groups of datasets is a fundamental analysis task. For high-dimensional data, dimensionality reduction (DR) methods are often used to find the characteristics of each group. However, existing DR methods provide limited capability and flexibility for such comparative analysis as each method is designed only for a narrow analysis target, such as identifying factors that most differentiate groups. This paper presents an interactive DR framework where we integrate our new DR method, called ULCA (unified linear comparative analysis), with an interactive visual interface. ULCA unifies two DR schemes, discriminant analysis and contrastive learning, to support various comparative analysis tasks. To provide flexibility for comparative analysis, we develop an optimization algorithm that enables analysts to interactively refine ULCA results. Additionally, the interactive visualization interface facilitates interpretation and refinement of the ULCA results. We evaluate ULCA and the optimization algorithm to show their efficiency as well as present multiple case studies using real-world datasets to demonstrate the usefulness of this framework.

READ FULL TEXT

page 3

page 9

06/28/2022

Feature Learning for Dimensionality Reduction toward Maximal Extraction of Hidden Patterns

Dimensionality reduction (DR) plays a vital role in the visual analysis ...
08/02/2020

A Visual Analytics Framework for Reviewing Multivariate Time-Series Data with Dimensionality Reduction

Data-driven problem solving in many real-world applications involves ana...
05/10/2019

An Incremental Dimensionality Reduction Method for Visualizing Streaming Multidimensional Data

Dimensionality reduction (DR) methods are commonly used for analyzing an...
06/18/2017

Dimensionality Reduction using Similarity-induced Embeddings

The vast majority of Dimensionality Reduction (DR) techniques rely on se...
08/30/2020

ChemVA: Interactive Visual Analysis of Chemical Compound Similarity in Virtual Screening

In the modern drug discovery process, medicinal chemists deal with the c...
05/01/2022

Uniform Manifold Approximation with Two-phase Optimization

We introduce Uniform Manifold Approximation with Two-phase Optimization ...
11/18/2022

Learning on Health Fairness and Environmental Justice via Interactive Visualization

This paper introduces an interactive visualization interface with a mach...

Code Repositories

ulca

Implementation of ULCA and the visual interface from "Interactive Dimensionality Reduction for Comparative Analysis"


view repo