Fuzzy Adaptive PSO-ELM Algorithm Applied to Vehicle Sound Quality Prediction

• Published in: Applied sciences Vol. 13; no. 17; p. 9561
• Main Authors: Wang, Chenlin, Yang, Gongzhuo, Li, Junyu, Huang, Qibai
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.09.2023
• Subjects: Accuracy; Acoustics; Algorithms; Back propagation; extreme learning machine; fuzzy control; Genetic algorithms; Information sharing; Mathematical optimization; Methods; Neural networks; Optimization algorithms; particle swarm optimization; Propagation; Saturn; sound quality; Support vector machines; Velocity; Wavelet transforms
• ISSN: 2076-3417; 2076-3417
• DOI: 10.3390/app13179561

When dealing with specific tasks, the hidden layer output matrix of an extreme learning machine (ELM) may change, largely due to the random assigned weight matrix of the input layer and the threshold matrix of the hidden layer, which sequentially leads to the corresponding change to output weights. The unstable fluctuations of the output weights increase the structural risk and the empirical risk of ELM. This paper proposed a fuzzy adaptive particle swarm optimization (PSO) algorithm to solve this problem, which could nonlinearly control the inertia factor during the iteration by fuzzy control. Based on the fuzzy adaptive PSO-ELM algorithm, a sound quality prediction model was developed. The prediction results of this model were compared with the other three sound quality prediction models. The results showed that the fuzzy adaptive PSO-ELM model was more precise. In addition, in comparison with two other adaptive inertia factor algorithms, the fuzzy adaptive PSO-ELM model was the fastest model to reach goal accuracy.