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| import jax | |
| def custom_sigmoid_binary_cross_entropy(logits, labels): | |
| log_p = jax.nn.log_sigmoid(logits) | |
| log_not_p = jax.nn.log_sigmoid(-logits) | |
| return -labels * log_p - (1. - labels) * log_not_p | |
| custom_sigmoid_binary_cross_entropy(0.5,0.0) | |
| # DeviceArray(0.974077, dtype=float32, weak_type=True) |
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