文献类型：期刊文献

英文题名：A competitive co-evolutionary cultural differential evolution and its application to constrained optimization in butane alkylation process

作者：Xu, Wei[1]; Zhang, Lingbo[1]; Gu, Xingsheng[1]

机构：[1] Research Institute of Automation, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, China

年份：2010

起止页码：401

外文期刊名：Proceedings 2010 IEEE 5th International Conference on Bio-Inspired Computing: Theories and Applications, BIC-TA 2010

收录：EI(收录号：20105213534240)

语种：英文

外文关键词：Alkylation - Constraint handling - Butane - Evolutionary algorithms

摘要：A competitive co-evolutionary cultural differential evolution (CCCDE) is proposed for constrained optimization problems. A center individual, which is a potential solution, is introduced in the belief space. Competitive strategy is used to realize the co-evolution of multi-population. A relative fitness, i.e. competitive fitness, is presented to establish a diversity mechanism, which helps to escape from local optima when individuals are premature. CCCDE algorithm is validated through comparisons with two representative constraint-handling methods using eleven benchmark constrained problems. We also studied how to choose three thresholds, which are employed in the diversity mechanism. Finally, CCCDE is applied to a real-world problem with the objective to maximize the profit of butane alkylation process. It shows better applicability and effectiveness when compared with three other algorithms. ? 2010 IEEE.