The model reduction of the Vlasov–Poisson–Fokker–Planck system to the Poisson–Nernst–Planck system via the Deep Neural Network ApproachJae Yong Lee, Jin Woo Jang and Hyung Ju HwangESAIM: M2AN, 55 5 (2021) 1803-1846DOI: https://doi.org/10.1051/m2an/2021038