TY JOUR TI METHOD OF MARKING REAL ESTATE OBJECTS ON ORTHOPHOTOGRAPHS USING THE LABEL STUDIO TOOL KW real estate objects KW artificial intelligence KW data markup KW spatial data KW machine learning KW orthophotos JO MOSCOW ECONOMIC JOURNAL AU Gura, D.A. AU Tihonov, T.A. AU Pacula, K.S. AU Zaharova, E.S. AU Fomenko, L.Y. PY 2025 IS 10 PB Electronic science