TY JOUR TI Methodology of physiography zoning using machine learning: A case study of the Black Sea KW Spatial zoning KW Machine learning KW π‘˜-means clustering KW Black Sea KW Physiography zoning KW GIS KW clustering methodology JO Russian Journal of Earth Sciences AU , .. PY 2020 IS 20 PB ГСофизичСский Ρ†Π΅Π½Ρ‚Ρ€ Российской АкадСмии Наук