Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Estimation of mean vector in elliptical models   In this paper, we are basically discussing on a class of Baranchik type
shrinkage estimators of the vector parameter in a location model, with errors
belonging to a sub-class of elliptically contoured distributions. We derive
conditions under Schwartz space in which the underlying class of shrinkage
estimators outperforms the sample mean. Sufficient conditions on dominant class
to outperform the usual James-Stein estimator are also established. It is
nicely presented that the dominant properties of the class of estimators are
robust truly respect to departures from normality.

13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc