Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Heuristic algorithm for 1D and 2D unfolding   A very simple heuristic approach to the unfolding problem will be described.
An iterative algorithm starts with an empty histogram and every iteration aims
to add one entry to this histogram. The entry to be added is selected according
to a criteria which includes a $\chi^2$ test and a regularization. After a
relatively small number of iterations (500 - 1000) the growing reconstructed
distribution converges to the true distribution.

0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas