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EURASIP Journal on Advances in Signal Processing
Fig. 9 | EURASIP Journal on Advances in Signal Processing

Fig. 9

From: Class-specific discriminant time-frequency analysis using novel jointly learnt non-negative matrix factorization

Fig. 9

The TF signals of two classes (NS and PS) are simultaneously decomposed using the JLNMF algorithm. a The shared TF bases between PS and NS classes (i.e., W j ) and the PS-specific TF bases (W spike). b Two EEG recording samples (top with two spikes and bottom with no spikes). c The PS-specific reconstructed TF data. The red arrows indicate epileptic spikes

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