Method and system for determining the concentration of one or more sugars in tobacco leave samples

Abstract

A computer-implemented method for detecting a concentration of one or more sugars in tobacco target samples using a target analysis technique based on near-infrared spectroscopy is provided, the method comprising providing one or more trained artificial intelligence models obtained or obtainable by training one or more untrained or pre-trained artificial intelligence models using sample information, reference concentration data relating to the one or more sugars, and near-infrared reference spectral data obtained or obtainable using the target analysis technique for a plurality of tobacco reference samples; analyzing the tobacco target samples using the target analysis technique providing near-infrared target spectra and preprocessing the near-infrared target spectra to obtain preprocessed near-infrared target spectral data; and deriving the concentration of the one or more sugars in the tobacco target samples using the or one of the trained artificial intelligence models and on the basis of the preprocessed near-infrared target spectral data; wherein said analyzing the tobacco target samples includes providing a plurality of the near-infrared target spectra in a common sub-range of the near-infrared wavelength range for each of the tobacco reference samples, wherein said preprocessing the near-infrared target spectra includes averaging said plurality of near-infrared target spectra for each of the tobacco target samples and performing a standard normal variates transformation followed by Savitzky-Golay first derivative and mean centering, and wherein said tobacco target samples include one or more groups of tobacco target samples grouped according to chemical similarity of different tobacco varieties or types, at least one trained artificial intelligence model being provided for each of the groups or tobacco varieties or types therein. A method of providing one or more trained artificial intelligence models, a system and a computer program are provided as well.

Dependencies are inferred from the claim text.