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Recent research has shown that collaborative representation-based classifier (CRC) can lead to promising results for the classification of face images. However, CRC is conducted in the original image space rather than the nonlinear high dimensional feature space in which features belonging to the same class are better grouped together and thus can be easily separable. To address this problem, this...
We address reducing the mismatch between training and testing conditions for hands-free in-car speech recognition. It is well known that the distortions caused by background noise, channel effects, etc., are highly nonlinear in the log-spectral or cepstral domain. This letter introduces a joint sparse representation (JSR) to estimate the underlying clean feature vector from a noisy feature vector...
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