Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Shape Parameter in the Shifted Surface Spline   There is a constant c contained in the famous radial basis function shifted
surface spline. It's called shape parameter. RBF people only know that this
constant is very influential, while its optimal choice is unknown. This paper
presents criteria of its optimal choice.

24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc