Study of AQI Prediction using Recurrent Neural Network based Deep Learning Model with Hyperbolic Activation Function. American Journal of Language, Literacy and Learning in STEM Education (2993-2769), [S. l.], v. 4, n. 6, p. 10–20, 2026. Disponível em: https://www.grnjournal.us/index.php/STEM/article/view/9515. Acesso em: 24 jun. 2026.