Multi-Resolution Dual-Tree Wavelet Scattering Network for Signal Classification
Published version
Peer-reviewed
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Repository DOI
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Authors
Singh, A
Kingsbury, N
Abstract
This paper introduces a Deep Scattering network that utilizes Dual-Tree complex wavelets to extract multi-scale translation invariant representations from an input signal. The computationally efficient Dual-Tree wavelets decompose the input signal into equally spaced representations over scales. Translation invariance is introduced in the representations by applying a non-linearity over a region followed by averaging. The discriminatory information from the equally spaced locally smooth signal representations aids the learning of the classi- fier. The proposed network is shown to outperform Mallat’s ScatterNet [1] on four datasets with different modalities, both for classification accuracy and computational efficiency.
Description
Keywords
DTCWT, scattering network, convolutional neural network, USPS dataset, UCI datasets
Journal Title
11th International Conference on Mathematics in Signal Processing, 12–14 December 2016, Austin Court, Birmingham, UK
Conference Name
11th International Conference on Mathematics in Signal Processing
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Volume Title
Publisher
Institute of Mathematics and its Applications
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Sponsorship
Cambridge Trust