Academy of Mathematics and Systems Science;
Chinese Academy of Sciences;
Beijing 100190;
China;
Center for Forecasting Science;
Chinese Academy of Sciences;
Beijing 100190;
China;
Postdoctoral Working Station;
Shenwan Hongyuan Securities Co.;
Ltd.;
Shanghai 200031;
China;
Academy of Mathematics and Systems Science;
Chinese Academy of Sciences;
Beijing 100190;
China;
Academy of Mathematics and Systems Science;
Chinese Academy of Sciences;
Beijing 100190;
China;
Center for Forecasting Science;
Chinese Academy of Sciences;
Beijing 100190;
China;