scholarly journals A New Optimized Data Clustering Technique using Cellular Automata and Adaptive Central Force Optimization (ACFO)

2015 ◽  
Vol 10 (5) ◽  
pp. 522-531
Author(s):  
G. Srinivasa Rao ◽  
Vakulabharanam Vijaya Kumar ◽  
Penmesta Suresh Varma
2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Jie Liu ◽  
Yu-ping Wang

This paper proposes the hybrid CSM-CFO algorithm based on the simplex method (SM), clustering technique, and central force optimization (CFO) for unconstrained optimization. CSM-CFO is still a deterministic swarm intelligent algorithm, such that the complex statistical analysis of the numerical results can be omitted, and the convergence intends to produce faster and more accurate by clustering technique and good points set. When tested against benchmark functions, in low and high dimensions, the CSM-CFO algorithm has competitive performance in terms of accuracy and convergence speed compared to other evolutionary algorithms: particle swarm optimization, evolutionary program, and simulated annealing. The comparison results demonstrate that the proposed algorithm is effective and efficient.


2019 ◽  
Vol 78 (18) ◽  
pp. 26373-26397 ◽  
Author(s):  
Heba M. El-Hoseny ◽  
Zeinab Z. El Kareh ◽  
Wael A. Mohamed ◽  
Ghada M. El Banby ◽  
Korany R. Mahmoud ◽  
...  

2019 ◽  
Vol 36 (2) ◽  
pp. 599-621 ◽  
Author(s):  
Tran Thien Huan ◽  
Ho Pham Huy Anh

Purpose The purpose of this paper is to design a novel optimized biped robot gait generator which plays an important role in helping the robot to move forward stably. Based on a mathematical point of view, the gait design problem is investigated as a constrained optimum problem. Then the task to be solved is closely related to the evolutionary calculation technique. Design/methodology/approach Based on this fact, this paper proposes a new way to optimize the biped gait design for humanoid robots that allows stable stepping with preset foot-lifting magnitude. The newly proposed central force optimization (CFO) algorithm is used to optimize the biped gait parameters to help a nonlinear uncertain humanoid robot walk robustly and steadily. The efficiency of the proposed method is compared with the genetic algorithm, particle swarm optimization and improved differential evolution algorithm (modified differential evolution). Findings The simulated and experimental results carried out on the small-sized nonlinear uncertain humanoid robot clearly demonstrate that the novel algorithm offers an efficient and stable gait for humanoid robots with respect to accurate preset foot-lifting magnitude. Originality/value This paper proposes a new algorithm based on four key gait parameters that enable dynamic equilibrium in stable walking for nonlinear uncertain humanoid robots of which gait parameters are initiatively optimized with CFO algorithm.


Author(s):  
Heba M. El‐Hoseny ◽  
Wael Abd El‐Rahman ◽  
Walid El‐Shafai ◽  
El‐Sayed M. El‐Rabaie ◽  
Korany R. Mahmoud ◽  
...  

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