Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Sharp non-asymptotic oracle inequalities for nonparametric
  heteroscedastic regression models   An adaptive nonparametric estimation procedure is constructed for
heteroscedastic regression when the noise variance depends on the unknown
regression. A non-asymptotic upper bound for a quadratic risk (oracle
inequality) is obtained

24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys