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cs.LG2026
Measuring Distortion in the Empty Regions of Dimensionality Reduction Scatterplots with the Gap Index
Jaume Ros, Alessio Arleo, Fernando Paulovich
Quality metrics play a crucial role in the proper use of dimensionality reduction projections for visual analysis of high-dimensional data. They quantify the degree of distortion o…
cs.LG2026
When One Point Is Not Enough: Addressing Ambiguous Instances in Dimensionality Reduction by Splitting
Diede P. M. van der Hoorn, Alessio Arleo, Fernando V. Paulovich
Dimensionality Reduction (DR) methods are widely used to visualize high-dimensional data. One key task in DR-based analysis is discovering neighborhoods, which relies on analyzing…