Optimization of an extreme learning machine model with the sparrow search algorithm to estimate spring maize evapotranspiration with film mulching in the semiarid regions of China. - Yue Jia; Yongjun Su; Ran Zhang; Zhaona Zhang; Yukuo Lu; Dongxu Shi; Chaoqian Xu; Dongfeng Huang (Comput. Electron. Agric., 2022)