1 results about "Kernel partial least squares" patented technology

This invention provides a method and system for the supermicrowave digestion and determination of thallium in ores. Based on X-ray fluorescence spectroscopy, the matrix insolubility index is calculated to establish the digestion decision variables. Redundant points are eliminated using Sobol sequences combined with Thiessen polygons, and a non-uniform experimental design is constructed to obtain training data. On this basis, a hybrid response surface model is constructed, and kernel partial least squares regression is applied to fit the main trend, Gaussian process regression is used to process the residuals, and the interference index is introduced as a hyperparameter. The Grey Wolf optimization algorithm, incorporating Lévy flight, is used to optimize the ore while ensuring low residual organic carbon and maximizing the recovery rate. The obtained optimal parameters are used for supermicrowave digestion of the ore, and the thallium content is determined by ICP-MS, achieving efficient and accurate detection.