scholarly journals Hybrid Particle Swarm Optimization-Gravitational Search Algorithm based Deep Belief Network: Speech Emotion Recognition

2021 ◽  
Vol 4 (3) ◽  
pp. 23-31
Author(s):  
J Rajeshwar
Keyword(s):  
Particle Swarm Optimization ◽  
Emotion Recognition ◽  
Search Algorithm ◽  
Gravitational Search Algorithm ◽  
Speech Emotion Recognition ◽  
Swarm Optimization ◽  
Hybrid Particle ◽  
Belief Network ◽  
Hybrid Particle Swarm Optimization ◽  
Gravitational Search

scholarly journals Sequential Hybrid Particle Swarm Optimization and Gravitational Search Algorithm with Dependent Random Coefficients

2020 ◽  
Vol 2020 ◽  
pp. 1-17
Author(s):  
Shanhe Jiang ◽  
Chaolong Zhang ◽  
Shijun Chen
Keyword(s):  
Particle Swarm Optimization ◽  
Search Algorithm ◽  
Gravitational Search Algorithm ◽  
Particle Swarm ◽  
Random Coefficients ◽  
Superior Performance ◽  
Swarm Optimization ◽  
Hybrid Particle ◽  
Hybrid Particle Swarm Optimization ◽  
Gravitational Search

Particle swarm optimization (PSO) has been proven to show good performance for solving various optimization problems. However, it tends to suffer from premature stagnation and loses exploration ability in the later evolution period when solving complex problems. This paper presents a sequential hybrid particle swarm optimization and gravitational search algorithm with dependent random coefficients called HPSO-GSA, which first incorporates the gravitational search algorithm (GSA) with the PSO by means of a sequential operating mode and then adopts three learning strategies in the hybridization process to overcome the aforementioned problem. Specifically, the particles in the HPSO-GSA enter into the PSO stage and update their velocities by adopting the dependent random coefficients strategy to enhance the exploration ability. Then, the GSA is incorporated into the PSO by using fixed iteration interval cycle or adaptive evolution stagnation cycle strategies when the swarm drops into local optimum and fails to improve their fitness. To evaluate the effectiveness and feasibility of the proposed HPSO-GSA, the simulations were conducted on benchmark test functions. The results reveal that the HPSO-GSA exhibits superior performance in terms of accuracy, reliability, and efficiency compared to PSO, GSA, and other recently developed hybrid variants.

Operation management of daily economic dispatch using novel hybrid particle swarm optimization and gravitational search algorithm with hybrid mutation strategy

2017 ◽  
Vol 31 (19-21) ◽  
pp. 1740099 ◽  
Author(s):  
Yan Wang ◽  
Song Huang ◽  
Zhicheng Ji
Keyword(s):  
Particle Swarm Optimization ◽  
Search Algorithm ◽  
Economic Dispatch ◽  
Gravitational Search Algorithm ◽  
Particle Swarm ◽  
Swarm Optimization ◽  
Hybrid Particle ◽  
Hybrid Particle Swarm Optimization ◽  
Mutation Strategy ◽  
Gravitational Search

This paper presents a hybrid particle swarm optimization and gravitational search algorithm based on hybrid mutation strategy (HGSAPSO-M) to optimize economic dispatch (ED) including distributed generations (DGs) considering market-based energy pricing. A daily ED model was formulated and a hybrid mutation strategy was adopted in HGSAPSO-M. The hybrid mutation strategy includes two mutation operators, chaotic mutation, Gaussian mutation. The proposed algorithm was tested on IEEE-33 bus and results show that the approach is effective for this problem.

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