Photometric classification of quasars from ALHAMBRA survey using random forest Benjamín Arroquia-Cuadros, Néstor Sánchez, Vicent Gómez, Pere Blay, Vicent Martinez-Badenes and Lorena Nieves-Seoane A&A, 673 (2023) A48 Published online: 03 May 2023 DOI: 10.1051/0004-6361/202245531