title: Optimization of MFCC parameters using Particle Swarm Optimization for diagnosis of infant hypothyroidism using Multi- Layer Perceptron.
abstract: This paper presents a new application of the Particle Swarm Optimization (PSO) algorithm to optimize Mel Frequency Cepstrum Coefficients (MFCC) parameters, in order to extract an optimal feature set for diagnosis of hypothyroidism in infants using Multi-Layer Perceptrons (MLP) neural network. MFCC features is influenced by the number of filter banks (f(b)) and the number of coefficients (n(c)) used. These parameters are critical in representation of the features as they affect the resolution and dimensionality of the features. In this paper, the PSO algorithm was used to optimize the values of f(b) and n(c). The MFCC features based on the PSO optimization were extracted from healthy and unhealthy infant cry signals and used to train MLP in the classification of hypothyroid infant cries. The results indicate that the PSO algorithm could determine the optimum combination of f(b) and n(c) that produce the best classification accuracy of the MLP.
authors.affiliation: Faculty of Electrical Engineering, University Teknologi Mara, 40450 Shah Alam, Selangor, Malaysia.
authors.forename: A
authors.initials: A
authors.lastname: Zabidi
authors.forename: Yoot Khuan
authors.initials: YK
authors.lastname: Lee
authors.forename: W
authors.initials: W
authors.lastname: Mansor
authors.forename: I M
authors.initials: IM
authors.lastname: Yassin
authors.forename: R
authors.initials: R
authors.lastname: Sahak
mesh_terms: D000465:Algorithms; D003448:Crying; D003936:Diagnosis, Computer-Assisted / Q000379:methods*; D005260:Female; D006801:Humans; D007037:Hypothyroidism / Q000175:diagnosis*; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D009415:Nerve Net; D010363:Pattern Recognition, Automated / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013018:Sound Spectrography / Q000379:methods*