(a)
return -tensor.nnet.softplus(-a)
Equivalent to tf.log(tf.sigmoid(a))
Equivalent to tf.log(tf.sigmoid(a))
Equivalent to tf . log ( tf . sigmoid ( a ))
def logsigmoid(a):
    '''Equivalent to tf.log(tf.sigmoid(a))'''
    return -tensor.nnet.softplus(-a)
def logsigmoid ( a ) : return - tensor . nnet . softplus ( - a )