Quotient Space-Based Boundary Condition for Particle Swarm Optimization Algorithm. - Yuhong Chi; Fuchun Sun 001; Langfan Jiang; Chunyang Yu; Chunli Chen (Int. J. Softw. Sci. Comput. Intell., 2011)

An efficient population diversity measure for improved particle swarm optimization algorithm. - Yuhong Chi; Fuchun Sun 001; Langfan Jiang; Chunming Yu (IEEE Conf. of Intelligent Systems, 2012)

Elastic Boundary for Particle Swarm Optimization. - Yuhong Chi; Fuchun Sun 001; Langfan Jiang; Chunming Yu; Ping Zhang (ICSI (1), 2012)