My approach to solve LIBS 2022 quantification contest. Task was to predict the Cr, Mn, Mo, and Ni content of 15 metal alloys. Every sample in dataset contains LIBS spectra:
Two approches of dimension reduction were tested:
- selecting lines with best correlation with composition of given element,
- PCA analysis.
Final model was built with XGBoost Regressor.
LIBS 2022 Regression contest: Certification