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News/Classification of Astronomical Spectra Using PCA-Compressed Flux and Inverse-Variance Features
arxiv
PublishedJune 15, 2026 at 4:00 AM

Classification of Astronomical Spectra Using PCA-Compressed Flux and Inverse-Variance Features

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arXiv:2606.13978v1 Announce Type: cross Abstract: This paper evaluates a signal-processing and supervised-learning pipeline for classifying SDSS DR17 astronomical spectra into stars, galaxies, and quasars. Each spectrum is represented by its measured flux and inverse-variance information, combining

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