Wentao Mao Mei Tian Xizheng Cao Jiucheng Xu Model selection of extreme learning machine based on multi-objective optimization. 521-529 2013 22 Neural Comput. Appl. 3-4 https://doi.org/10.1007/s00521-011-0804-2 db/journals/nca/nca22.html#MaoTCX13