This paper establishes the rigorous mathematical foundation for orbital continuum removal and non-negative least squares library unmixing against a public laboratory spectral library. Blind cross-validation against ground-truth field spectroscopy is reported in the paper, without reliance on black-box heuristics.
Key findings
- Automated hull continuum removal preserves the diagnostic doublet separation across the shortwave infrared window.
- Alunite (2.165 µm) and well-crystallised kaolinite (2.208 µm) are cleanly separated under open archive data with zero false-positive bleed into adjacent phyllosilicate domains.
- Leave-one-region-out cross-validation across independent geological terranes supports the score the platform reports.
Read the paper
The full paper, with methodology, benchmark protocol and citation details, lives on its paper page. A PDF download ships with the Zenodo release.