Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Approximating distribution functions by iterated function systems   In this paper an iterated function system on the space of distribution
functions is built. The inverse problem is introduced and studied by convex
optimization problems. Some applications of this method to approximation of
distribution functions and to estimation theory are given.

32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an