Multi-chromosomal CGP-evolved RNN for signal reconstruction

A multi-chromosomal structure for neuro-evolution of recurrent neural networks (RNNs) with Cartesian genetic programming (CGP) architecture is presented to develop a signal reconstruction model. The group behaviour of multi-chromosomes evolved together is explored in terms of computational and struc...

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Vydáno v:Neural computing & applications Ročník 33; číslo 20; s. 13265 - 13285
Hlavní autoři: Khan, Nadia Masood, Khan, Gul Muhammad
Médium: Journal Article
Jazyk:angličtina
Vydáno: London Springer London 01.10.2021
Springer Nature B.V
Témata:
Algorithms
Artificial Intelligence
Cartesian coordinates
Chromosomes
Computational Biology/Bioinformatics
Computational Science and Engineering
Computer architecture
Computer Science
Data Mining and Knowledge Discovery
Deep learning
Genetic algorithms
Image Processing and Computer Vision
Machine learning
Neural networks
Optimization
Original Article
Probability and Statistics in Computer Science
Programming
Recurrent neural networks
Signal reconstruction
Speech
Neuro-evolution
Signal reconstruction
Recurrent neural network
Linear Regression
Machine learning
Random Forest
ISSN:0941-0643, 1433-3058
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Shrnutí:A multi-chromosomal structure for neuro-evolution of recurrent neural networks (RNNs) with Cartesian genetic programming (CGP) architecture is presented to develop a signal reconstruction model. The group behaviour of multi-chromosomes evolved together is explored in terms of computational and structural complexity, and accurate reconstruction of the corrupted signal. Signal reconstruction modelling is done through prediction of missing samples, and a sliding window mechanism is utilized to recover long segments of missing samples in periodic and aperiodic corrupted signals. The proposed model is compared with the conventional single chromosome-based Cartesian Genetic Programming-evolved Recurrent Neural Network (CGPRNN) architecture as well as state-of-the-art machine learning algorithms, i.e. linear regression, random forest and long short-term memory deep learning neural network. Diverse network architectures of the proposed Multi-Chromosomal Cartesian Genetic Programming-evolved Recurrent Neural Network (MC-CGPRNN) are evolved to explore the robustness of algorithm in terms of optimization of hyper parameters, evolutionary speed and generalization ability. The proposed algorithm is trained and tested on speech signal with both periodic and aperiodic noise. The best trained network is also evaluated on standard music signals achieving remarkable results. Experimental results show that the proposed MC-CGPRNN algorithm achieved SNR of 25.23 dB for speech signal, 29.92 dB for guitar signal and 28.45 dB for flute signal in case of 50% missing samples showing best SNR improvement in comparison with its counterparts for time domain signal reconstruction.
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ISSN:0941-0643
1433-3058
DOI:10.1007/s00521-021-05953-4