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- W2000219129 abstract "One of the most challenging problems in target classification is the extraction of a robust feature, which can effectively represent a specific type of targets. The use of seismic signals in unattended ground sensor (UGS) systems makes this problem more complicated, because the seismic target signal is non-stationary, geology-dependent and with high-dimensional feature space. This paper proposes a new feature extraction algorithm, called wavelet packet manifold (WPM), by addressing the neighborhood preserving embedding (NPE) algorithm of manifold learning on the wavelet packet node energy (WPNE) of seismic signals. By combining non-stationary information and low-dimensional manifold information, WPM provides a more robust representation for seismic target classification. By using a K nearest neighbors classifier on the WPM signature, the algorithm of wavelet packet manifold classification (WPMC) is proposed. Experimental results show that the proposed WPMC can not only reduce feature dimensionality, but also improve the classification accuracy up to 95.03%. Moreover, compared with state-of-the-art methods, WPMC is more suitable for UGS in terms of recognition ratio and computational complexity." @default.
- W2000219129 created "2016-06-24" @default.
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- W2000219129 date "2013-07-04" @default.
- W2000219129 modified "2023-10-16" @default.
- W2000219129 title "Seismic Target Classification Using a Wavelet Packet Manifold in Unattended Ground Sensors Systems" @default.
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- W2000219129 doi "https://doi.org/10.3390/s130708534" @default.
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