中国科学院数学与系统科学研究院期刊网
Analysis and combined forecasting of China containerized freight index based on VMD
TANG Xia, KUANG Haibo, GUO Yuanyuan, DIAO Shujie, ZHANG Pengfei
Systems Engineering - Theory & Practice . 2021, (1): 176 -187 .  DOI: 10.12011/SETP2019-0226