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2 docs tagged with "preprocessing"

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Dataset — LAMOST DR5 × Gaia DR3 (PHY-3500)

Complete description of the dataset used in the PHY-3500 project: N = 43,019 LAMOST DR5 spectra cross-matched with Gaia DR3, p = 183 spectroscopic features after quality filtering.

Guide — Spectrum Preprocessing

Complete guide to preprocessing LAMOST DR5 spectra in AstroSpectro: λ-grid reconstruction, median normalization, SNR/RUWE quality filters, and preparation of the 183-descriptor vector.