Using Algorithm (Levenberg marquardt) as Activation Function to Prediction Water Quality Index (WQI) in Kastamonu City-Turkey. م ل ع ت ب [Internet]. 2019 Dec. 31 [cited 2025 Sep. 25];1(2):2o - 29. Available from: https://www.srcest.org.ly/journal/index.php/ljest/article/view/223