title: The attractor recurrent neural network based on fuzzy functions: An effective model for the classification of lung abnormalities.
abstract: The respiratory system dynamic is of high significance when it comes to the detection of lung abnormalities, which highlights the importance of presenting a reliable model for it. In this paper, we introduce a novel dynamic modelling method for the characterization of the lung sounds (LS), based on the attractor recurrent neural network (ARNN). The ARNN structure allows the development of an effective LS model. Additionally, it has the capability to reproduce the distinctive features of the lung sounds using its formed attractors. Furthermore, a novel ARNN topology based on fuzzy functions (FFs-ARNN) is developed. Given the utility of the recurrent quantification analysis (RQA) as a tool to assess the nature of complex systems, it was used to evaluate the performance of both the ARNN and the FFs-ARNN models. The experimental results demonstrate the effectiveness of the proposed approaches for multichannel LS analysis. In particular, a classification accuracy of 91% was achieved using FFs-ARNN with sequences of RQA features.
authors.affiliation: Biomedical Engineering Department, Amirkabir University of Technology, Tehran 15875-4413, Iran.
authors.forename: Mohammad Bagher
authors.initials: MB
authors.lastname: Khodabakhshi
authors.affiliation: Biomedical Engineering Department, Amirkabir University of Technology, Tehran 15875-4413, Iran. Electronic address: mhmoradi@aut.ac.ir.
authors.forename: Mohammad Hassan
authors.initials: MH
authors.lastname: Moradi
mesh_terms: D000328:Adult; D017143:Fuzzy Logic; D006801:Humans; D008875:Middle Aged; D016571:Neural Networks, Computer; D029424:Pulmonary Disease, Chronic Obstructive / Q000175:diagnosis / Q000503:physiopathology*; D012135:Respiratory Sounds / Q000145:classification* / Q000175:diagnosis; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted; D055815:Young Adult
keywords: Attractor recurrent neural networks; Fuzzy functions; Lung sounds; Recurrence quantification analysis