Novel signal representation of descriptors dependency in information retrieval based on wavelet spectral analysis.
Ibtissam El HassaniTawfik MasrourPublished in: AICCSA (2013)
Keyphrases
- spectral analysis
- power spectral density
- information retrieval
- heart rate variability
- wavelet analysis
- wavelet transform
- signal processing
- high frequency
- original signal
- spectral methods
- frequency domain
- wavelet coefficients
- power spectrum
- multiscale
- feature descriptors
- image retrieval
- image representation
- spectral features
- wavelet decomposition
- pattern recognition
- neural network
- wavelet packet
- autoregressive
- filter bank
- subband
- language model