Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the efficiency of Gini's mean difference   We examine the efficiency of the mean deviation and Gini's mean difference
(the mean of all pairwise distances). Our findings support the viewpoint that
Gini's mean difference combines the advantages of the mean deviation and the
standard deviation.

27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph