Optimisation and Pattern Recognition Research Group, Department of Mechanical Engineering, Melbourne School of Engineering, The University of Melbourne, Parkville, VIC 3010, Portland House Research and Advisors Ltd., Melbourne, VIC 3000, Australia, Yourgene Bioscience, No. 376-5, Fuxing Rd., Shu-Lin District, New Taipei City, Taiwan and Biodiversity Research Center, Academia Sinica, Nan-Kang, Taipei 11529, Taiwan.