Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: PARNI for importance sampling and density estimation   We present an aid for importance sampling in Monte Carlo integration, which
is of the general-purpose type in the sense that it in principle deals with any
quadratically integrable integrand on a unit hyper-cube of arbitrary dimension.
In contrast to most existing systems of this type, it does not ask for the
integrand as an input variable, but provides a number of routines which can be
plugged into a given Monte Carlo program in order to improve its efficiency "on
the fly" while running. Due to the nature of its design, it can also be used
for density estimation, i.e., for the analysis of data points coming from an
external source.

7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn