试图了解Tensorflow Bayesflow Monte Carlo

Question

I apologize for the nature of this question but I'm relatively new to tensorflow.

I am having trouble understanding the bayesflow monte carlo operations of tensorflow, as described here

As far as I know, it is an op for estimating the expected outcome of a function(?).

Additionally, how would I use it?

Answer 1

The BayesFlow Monte Carlo you are referring to is used to compute the the Monte Carlo approximization of E_p(f(Z)) , which is the expected value of a function of a random variable Z . The important part you seem to miss is that Z is a RV and that its distribution is not fully known (parameterized distr.), therefore you need to estimate.

You can use it like this:

tf.contrib.bayesflow.monte_carlo.expectation(
    f,
    samples,
    log_prob=None,
    use_reparametrization=True,
    axis=0,
    keep_dims=False,
    name=None
)

and for additional infos about the parameters check this .