Open Access

Table 1.

ANN architecture for training the 21 cm power spectra and cross bias.

Layers Description
Input Free parameters
Dense 1 (512 neurons, activation = ‘relu’)
Dense 2 (1024 neurons, activation = ‘relu’)
Dense 3 (1024 neurons, activation = ‘relu’)
Dense 4 (512 neurons, activation = ‘relu’)
Dense 5 (512 neurons, activation = ‘relu’)
Dense 6 (256 neurons, activation = ‘relu’)
Dense 7 (128 neurons, activation = ‘relu’)
Dense 8 (64 neurons, activation = ‘relu’)
Dense 9 (32 neurons, activation = ‘relu’)
Dense 10 (16 neurons, activation = ‘relu’)
Output (values at k bins, activation = ‘linear’)

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