Effectiveness of High-Dimensional Distance Metrics on Solar Flare Time Series
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Shared by Gary on Nov 5, 2025 • 01:33 PM UTC
NobleBlocks IDNB5650611A
Authors:,,
Azim Ahmadzadeh∗
V . Aparna†‡
Elaina Rohlfing∗
Abstract
—Solar-flare forecasting has been extensively re-\searched yet remains an open problem. In this paper, we investi-\gate the contributions of elastic distance measures for detecting patterns in the solar-flare dataset, SWAN-SF. We employ a simple k-medoids clustering algorithm to evaluate the effecti...
Subject
Highlights
-Elastic distance measures (DTW, MSM, TWE) do not outperform Euclidean distance on SWAN-SF in a thorough, optimized evaluation.
-High-dimensional, stochastic solar flare time series effectively collapse elastic distances toward Euclidean distance.
-Thousands of experiments and both quantitative and qualitative evidence support the ineffectiveness of elastic measures beyond Euclidean in this setting.
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