activity
20142021
most citedDynamic Optimization of Trajectory for Ramp-up Current Profile in Tokamak Plasmas

16 citations · 25 across the 14 of their papers we have counts for

collaborators

14 papers

cs.NE2021★ 1 cited

Surrogate-assisted cooperative signal optimization for large-scale traffic networks

Yongsheng Liang, Zhigang Ren, Lin Wang +2

Reasonable setting of traffic signals can be very helpful in alleviating congestion in urban traffic networks. Meta-heuristic optimization algorithms have proved themselves to be a…

cs.NE2021★ 1 cited

Enhancing hierarchical surrogate-assisted evolutionary algorithm for high-dimensional expensive optimization via random projection

Xiaodong Ren, Daofu Guo, Zhigang Ren +2

By remarkably reducing real fitness evaluations, surrogate-assisted evolutionary algorithms (SAEAs), especially hierarchical SAEAs, have been shown to be effective in solving compu…

cs.NE2021

A Surrogate-Assisted Variable Grouping Algorithm for General Large Scale Global Optimization Problems

An Chen, Zhigang Ren, Muyi Wang +3

Problem decomposition plays a vital role when applying cooperative coevolution (CC) to large scale global optimization problems. However, most learning-based decomposition algorith…

cs.NE2020★ 1 cited

An Eigenspace Divide-and-Conquer Approach for Large-Scale Optimization

Zhigang Ren, Yongsheng Liang, Muyi Wang +2

Divide-and-conquer-based (DC-based) evolutionary algorithms (EAs) have achieved notable success in dealing with large-scale optimization problems (LSOPs). However, the appealing pe…

math.OC2019★ 2 cited

A Fast Differential Grouping Algorithm for Large Scale Black-Box Optimization

Zhigang Ren, An Chen, Yaochu Jin +3

Decomposition plays a significant role in cooperative co-evolution which shows great potential in large scale black-box optimization. However, current popular decomposition algorit…

cs.NE2018

Niching an Archive-based Gaussian Estimation of Distribution Algorithm via Adaptive Clustering

Yongsheng Liang, Zhigang Ren, Bei Pang +1

As a model-based evolutionary algorithm, estimation of distribution algorithm (EDA) possesses unique characteristics and has been widely applied to global optimization. However, tr…

cs.NE2018

Enhancing Cooperative Coevolution for Large Scale Optimization by Adaptively Constructing Surrogate Models

Bei Pang, Zhigang Ren, Yongsheng Liang +1

It has been shown that cooperative coevolution (CC) can effectively deal with large scale optimization problems (LSOPs) through a divide-and-conquer strategy. However, its performa…

cs.NE2018

A Global Information Based Adaptive Threshold for Grouping Large Scale Global Optimization Problems

An Chen, Yipeng Zhang, Zhigang Ren +2

By taking the idea of divide-and-conquer, cooperative coevolution (CC) provides a powerful architecture for large scale global optimization (LSGO) problems, but its efficiency reli…

cs.NE2018★ 2 cited

Surrogate Model Assisted Cooperative Coevolution for Large Scale Optimization

Zhigang Ren, Bei Pang, Yongsheng Liang +2

It has been shown that cooperative coevolution (CC) can effectively deal with large scale optimization problems (LSOPs) through a divide-and-conquer strategy. However, its performa…

cs.NE2018

Boosting Cooperative Coevolution for Large Scale Optimization with a Fine-Grained Computation Resource Allocation Strategy

Zhigang Ren, Yongsheng Liang, Aimin Zhang +3

Cooperative coevolution (CC) has shown great potential in solving large scale optimization problems (LSOPs). However, traditional CC algorithms often waste part of computation reso…

cs.NE2018★ 2 cited

Enhancing Gaussian Estimation of Distribution Algorithm by Exploiting Evolution Direction with Archive

Yongsheng Liang, Zhigang Ren, Xianghua Yao +2

As a typical model-based evolutionary algorithm (EA), estimation of distribution algorithm (EDA) possesses unique characteristics and has been widely applied to global optimization…

physics.plasm-ph2016★ 16 cited

Dynamic Optimization of Trajectory for Ramp-up Current Profile in Tokamak Plasmas

Zhigang Ren, Chao Xu, Yongsheng Ou

In this paper, we consider an open-loop, finite-time, optimal control problem of attaining a specific desired current profile during the ramp-up phase by finding the best open-loop…

math.OC2016

A Gradient-based Kernel Optimization Approach for Parabolic Distributed Parameter Control Systems

Zhigang Ren, Chao Xu, Qun Lin +1

This paper proposes a new gradient-based optimization approach for designing optimal feedback kernels for parabolic distributed parameter systems with boundary control. Unlike trad…

cs.CE2014

Optimal Boundary Control for Water Hammer Suppression in Fluid Transmission Pipelines

Tehuan Chen, Chao Xu, Zhigang Ren +1

When fluid flow in a pipeline is suddenly halted, a pressure surge or wave is created within the pipeline. This phenomenon, called water hammer, can cause major damage to pipelines…