sigmoid cross entropy loss

tensorflow实现

# 作用：计算给定logits的sigmoid cross entropy loss
tf.nn.sigmoid_cross_entropy_with_logits(
    _sentinel=None,
    labels=None,
    logits=None,
    name=None
)
d_loss_real = tf.reduce_mean(tf.nn.sigmoid_cross_entropy_with_logits(
        labels=tf.ones_like(real_logits), logits=real_logits))