Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finding small inhomogeneities from surface scattering data   A method is given for finding small inhomogeneities from surface scattering
data. The method consists in localization of the positions and finding the
intensities of these small inhomogeneities. The case of acoustic wave
scattering is studied, but the method is applicable to electromagnetic waves as
well.

6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas