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Multi-step metal prices forecasting based on a data preprocessing method and an optimized extreme learning machine by marine predators algorithm 期刊论文
RESOURCES POLICY, 2021, 卷号: 74, 页码: 10
作者:  Du, Pei;  Guo, Ju'e;  Sun, Shaolong;  Wang, Shouyang;  Wu, Jing
收藏  |  浏览/下载:145/0  |  提交时间:2022/04/02
Metal prices forecasting  Data processing method  Optimized extreme learning machine  Hybrid forecasting model  
The determinants of Chinese nonferrous metals imports and exports 期刊论文
RESOURCES POLICY, 2017, 卷号: 53, 页码: 238-246
作者:  Zheng, Yafei;  Shao, Yanmin;  Wang, Shouyang
收藏  |  浏览/下载:127/0  |  提交时间:2018/07/30
Gravity model  International trade  Nonferrous metals  Panel data