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Reference direction based immune clone algorithm for many-objective optimization 被引量:1
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作者 Ruochen LIU Chenlin MA Fei HE Wenping MA Licheng JIAO 《Frontiers of Computer Science》 SCIE EI CSCD 2014年第4期642-655,共14页
In this paper, a new preference multi-objective optimization algorithm called immune clone algorithm based on reference direction method (RD-ICA) is proposed for solving many-objective optimization problems. First, ... In this paper, a new preference multi-objective optimization algorithm called immune clone algorithm based on reference direction method (RD-ICA) is proposed for solving many-objective optimization problems. First, an intelligent recombination operator, which performs well on the functions comprising many parameters, is introduced into an immune clone algorithm so as to explore the potentially excellent gene segments of all individuals in the antibody pop- ulation. Second, a reference direction method, a very strict ranking based on the desire of decision makers (DMs), is used to guide selection and clone of the active population. Then a light beam search (LBS) is borrowed to pick out a small set of individuals filling the external population. The proposed method has been extensively compared with other recently proposed evolutionary multi-objective optimization (EMO) approaches over DTLZ problems with from 4 to 100 objectives. Experimental results indicate RD-ICA can achieve competitive results. 展开更多
关键词 many-objective optimization preference multiobjective optimization artificial immune system reference direction method light beam search intelligent recombination operator
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Direct fractional order MRAC adaptive control design for a class of fractional order commensurate linear systems
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作者 Hanane Balaska Samir Ladaci Abdelbaki Djouambi 《Journal of Control and Decision》 EI 2021年第3期363-371,共9页
In this paper,we introduce a direct fractional order adaptive control design based on model reference adaptive control(MRAC)structure for a class of commensurate fractional order linear systems with an arbitrary relat... In this paper,we introduce a direct fractional order adaptive control design based on model reference adaptive control(MRAC)structure for a class of commensurate fractional order linear systems with an arbitrary relative degree,and whose parameters are unknown.By generalising the application of standard direct MRAC strategy to plants described by fractional order models,we develop a fractional adaptive control scheme(FOMRAC)based on the output feedback.We also define an adaptation control law ensuring the stability of the closed-loop system and the good tracking of the reference trajectory.The asymptotic stability of the fractional order control system is proven using an extension of the Lyapunov theorem.Simulation results show the effectiveness of the proposed control method even for plants with model parametric variations and additive noises. 展开更多
关键词 Fractional order linear commensurate system direct model reference adaptive control fractional adaptive control direct FOMRAC Lyapunov stability
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