Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Probabilistic Surrogate Networks for Simulators with Unbounded
  Randomness   We present a framework for automatically structuring and training fast,
approximate, deep neural surrogates of stochastic simulators. Unlike
traditional approaches to surrogate modeling, our surrogates retain the
interpretable structure and control flow of the reference simulator. Our
surrogates target stochastic simulators where the number of random variables
itself can be stochastic and potentially unbounded. Our framework further
enables an automatic replacement of the reference simulator with the surrogate
when undertaking amortized inference. The fidelity and speed of our surrogates
allow for both faster stochastic simulation and accurate and substantially
faster posterior inference. Using an illustrative yet non-trivial example we
show our surrogates' ability to accurately model a probabilistic program with
an unbounded number of random variables. We then proceed with an example that
shows our surrogates are able to accurately model a complex structure like an
unbounded stack in a program synthesis example. We further demonstrate how our
surrogate modeling technique makes amortized inference in complex black-box
simulators an order of magnitude faster. Specifically, we do simulator-based
materials quality testing, inferring safety-critical latent internal
temperature profiles of composite materials undergoing curing.

8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph