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Shallow and deep machine learning models Chapter  8 235































             FIG. 8.8 One-step training process schematic of the encoder-decoder LSTM network model.




               TABLE 8.3 Median R2 of the NMR T2 synthesis by the deep learning models
               on the testing dataset
                             VAE-NN      GAN-NN       VAEc-NN      LSTM
               Inverted log  0.75        0.80         0.78         0.75
               Raw log       0.76        0.75         0.77         0.69






               TABLE 8.4 Computation times (in seconds) for training the deep learning
               models
                             VAE-NN      GAN-NN       VAEc-NN      LSTM
               Inverted log  47.55       22.91        47.61        569.14
               Raw log       47.34       22.62        37.67        589.12
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