Forecasting Nickel futures price based on the empirical wavelet transform and gradient boosting decision trees. - Qinghua Gu; Yinxin Chang; Naixue Xiong; Lu Chen 009 (Appl. Soft Comput., 2021)

A novel F-SVM based on FOA for improving SVM performance. - Qinghua Gu; Yinxin Chang; Xinhong Li; Zhaozhao Chang; Zhidong Feng (Expert Syst. Appl., 2021)