00578naa#a2200169#i#450# EN\\bibl\103007 20250814195845.4 3034-4689 20250807b2025####ek#y0engy0150####ca RU IDENTIFICATION OF PARAMETERS OF THE CLUSTER PIECEWISE LINEAR REGRESSION FUNCTION OF LEONTIEV BY THE METHOD OF LEAST MODULES Journal article Kazan Kazan National Research Technological University 2025 3 с. Journal article local Noskov Sergey Ivanovich Belyaev S. V. vestniktu.ru