TY CONF TI APPLICATION OF SILU ACTIVATION FUNCTION IN NEURAL NETWORK MODELING OF PINE STAND CHARACTERISTICS KW neural networks KW qualitative characteristics KW pine forest stand JO ENERGY-SAVING AND ENVIRONMENTALLY SAFE TECHNOLOGIES OF THE TIMBER INDUSTRY – 2025 AU Arapov, D.V. PY 2025 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov