Hybrid Model of Artificial Neural Networks and Principal Component Decomposition for Predicting Greenhouse Gas Emissions in the Brazilian MATOPIBA Region. GJHSS [Internet]. 2025 Apr. 26 [cited 2026 Feb. 4];25(E1):69-80. Available from: https://testing.socialscienceresearch.org/index.php/GJHSS/article/view/104316