RT Journal Article T1 Testing machine learning algorithms for the prediction of depositional fluxes of the radionuclides 7Be, 210Pb and 40K A1 De La Torre Luque, P. A1 Dueñas-Buey, Mª Concepción A1 Gordo Puertas, Elisa A1 Cañete-Hidalgo, Sergio Andrés K1 Aprendizaje automático (Inteligencia artificial) K1 Isótopos radiactivos K1 Deposición atmosférica AB The monthly depositional fluxes of 7Be, 210Pb and 40K were measured at Malaga, (Southern Spain) from 2005 to 2018. In this work, the depositional fluxes of these radionuclides are investigated and their relations with several atmospheric variables have been studied by applying two popular machine learning methods: Random Forest and Neural Network algorithms. We extensively test different configurations of these algorithms and demonstrate their predictive ability for reproducing depositional fluxes. The models derived with Neural Networks achieve slightly better results, in average, although similar, having into account the uncertainties. The mean Pearson-R coefficients, evaluated with a k-fold cross-validation method, are around 0.85 for the three radionuclides using Neural Network models, while they go down to 0.83, 0.79 and 0.8 for 7Be, 210Pb and 40K, respectively, for the Random Forest models. Additionally, applying the Recursive Feature Elimination technique we determine the variables more correlated with the depositional fluxes of these radionuclides, which elucidates the main dependences of their temporal variability. PB Elsevier YR 2023 FD 2023 LK https://hdl.handle.net/10630/27107 UL https://hdl.handle.net/10630/27107 LA eng NO De La Torre Luque, P. et al. “Testing Machine Learning Algorithms for the Prediction of Depositional Fluxes of the Radionuclides 7Be, 210Pb and 40K.” Journal of environmental radioactivity 265 (2023): 107213–107213. Web. NO This research was funded by Consejo de Seguridad Nuclear (Spain).Funding for open access charge: Universidad de Málaga / CBUA DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026