“…The present paper focuses only on the random field representation over complex geometries, while the detailed applications in several fields of uncertainty quantification need more further study. Especially, newer and more powerful supervised ML methods have been developed recently, for example, neural dynamic classification algorithm (Rafiei & Adeli, 2017b), dynamic ensemble learning algorithm (Alam et al, 2019), deep reinforcement learning (Chen et al, 2021;Wang et al, 2021), finite element machine for fast learning (Pereira et al, 2019), etc., which enable us to conveniently and rapidly predict the structural behaviors. These methods have already been successfully applied to material properties prediction (Rafiei et al, 2017;Valikhani et al, 2021), hazard early warning (Dong et al, 2021;Rafiei & Adeli, 2017a), construction cost estimation (Rafiei & Adeli, 2018), risk assessment (Tomar & Burton, 2021), etc.…”