fig1

Figure 1. Schematic diagram of machine-learning models. (A) CNN; (B) LSTM; (C) BiLSTM; and (D) CNN-BiLSTM. CNN: Convolutional neural network; LSTM: long short-term memory; BiLSTM: bidirectional long short-term memory.
Figure 1. Schematic diagram of machine-learning models. (A) CNN; (B) LSTM; (C) BiLSTM; and (D) CNN-BiLSTM. CNN: Convolutional neural network; LSTM: long short-term memory; BiLSTM: bidirectional long short-term memory.
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