An Optimization-Driven Fuzzy Transformer–Deep Belief Network for PM 2.5 Air Pollution Prediction: A Spatio-Temporal Framework Based on Aerosol Optical Depth. - Nevisi, Mohammad Mehdi Sharifi; Moghaddam, Pardis Sadatian; Kaveh, Mehrdad; Martín, Diego; Serrano, Nuria; Álvarez-Bravo, José Vicente (Mathematics (2227-7390), 2026)