Low-rank matrix factorization with autoregressive regularization, periodic detrending, and cross-spectral covariance imputes missing SSI measurements in two stages and supplies distribution-free uncertainty intervals via conformal prediction.
TSIS-1 data has 2104 spectral channels ranging from 200.015nm to 2399.011nm, while CSIM data has 2343 channels ranging from 210.014nm to 2596.299nm
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Matrix Factorization-Based Solar Spectral Irradiance Missing Data Imputation with Uncertainty Quantification
Low-rank matrix factorization with autoregressive regularization, periodic detrending, and cross-spectral covariance imputes missing SSI measurements in two stages and supplies distribution-free uncertainty intervals via conformal prediction.