2020
DOI: 10.1121/10.0002656
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Matched-field geoacoustic inversion based on radial basis function neural network

Abstract: Multi-layer neural networks (NNs) are combined with objective functions of matched-field inversion (MFI) to estimate geoacoustic parameters. By adding hidden layers, a radial basis function neural network (RBFNN) is extended to adopt MFI objective functions. Specifically, shallow layers extract frequency features from the hydrophone data, and deep layers perform inverse function approximation and parameter estimation. A hybrid scheme of backpropagation and pseudo-inverse is utilized to update the RBFNN weights… Show more

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Cited by 28 publications
(13 citation statements)
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“…There are many forms of RBF, many of which satisfy the Micchelli theorem, and its characteristic is that the quantity of hidden nodes is equal to the quantity of input samples. The following three RBFs satisfy the Micchelli theorem [ 23 , 24 ].…”
Section: Methodsmentioning
confidence: 99%
“…There are many forms of RBF, many of which satisfy the Micchelli theorem, and its characteristic is that the quantity of hidden nodes is equal to the quantity of input samples. The following three RBFs satisfy the Micchelli theorem [ 23 , 24 ].…”
Section: Methodsmentioning
confidence: 99%
“…The distance of the input from the central point and the degree of activation have a direct relationship. When the degree of activation is lower, the distance between the input and the central point is greater (Shen et al, 2020). This feature is called the local feature of the hidden layer node.…”
Section: Rbfnnmentioning
confidence: 99%
“…Determining the hidden layer and the output weight: The construction and training of RBFNN have a process of determining the number of neurons of the hidden layer, the center, and the width of each basis function of the hidden layer and the output weight (Shen et al, 2020). Three forms of RBF that can satisfy Micchelli's theorem are given below (Gaussian, Multiquadric, and Inverse polyquadratic function) (equations 5-7).…”
Section: Rbfnnmentioning
confidence: 99%
“…These methods typically require searching the entire parameter space and require forward fitting at each iteration, which is computationally intensive. Neural network technology is one of the rapidly developed information processing technologies [6]. The neural network itself is a nonlinear dynamic system with strong self-learning, self-adapting, self-organizing and fault-tolerant capabilities.…”
Section: Introductionmentioning
confidence: 99%