1.tf.nn.softplus
https://blog.csdn.net/ai_lx/article/details/88953587
import tensorflow as tf
a = tf.constant([-1.0, 12.0])
with tf.Session() as sess:
b = tf.nn.softplus(a)
print(sess.run(b))
#输出
[ 0.31326166 12.000006 ]
就是soft plus。#不是softmax,不是归一化。
公式是:log( exp( features ) + 1),所输入的a就是features。
2.性质
https://blog.csdn.net/bqw18744018044/article/details/81193241