Study on chain structure model of evolutionary game based on asymmetric case. - Zhigeng Fang; Sifeng Liu; Aiqing Ruan (SMC (6), 2004)

Study on the model of the standard grey matrix game based on pure-strategy solution. - Zhigeng Fang; Sifeng Liu; Aiqing Ruan; Yuannian Li (SMC, 2005)

Study on Degree of Orderliness of Regional Industrial Structure. - Sifeng Liu; Yaoguo Dang; Aiqing Ruan; Yingying Ren (SMC, 2005)

Study on a new duopoly strategy output-making model based on the experienced ideal output and the best strategy decision-making coefficient. - Zhigeng Fang; Sifeng Liu; Aiqing Ruan (SMC, 2007)

A gray input-output model based on the standard interval grey number. - Sifeng Liu; Zhigeng Fang; Zhou Wei; Aiqing Ruan (FUZZ-IEEE, 2008)

The numerical simulation of improving parameter estimation by instrumental variable method. - Yinao Wang; Aiqing Ruan; Zhihui Zhan (Kybernetes, 2012)

The multiple attribute decision model of grey targets based on grey potential degree. - Aiqing Ruan; Yinao Wang (Grey Syst. Theory Appl., 2017)