Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generalized Hamming weights of three classes of linear codes   The generalized Hamming weights of a linear code have been extensively
studied since Wei first use them to characterize the cryptography performance
of a linear code over the wire-tap channel of type II. In this paper, we
investigate the generalized Hamming weights of three classes of linear codes
constructed through defining sets and determine them partly for some cases.
Particularly, in the semiprimitive case we solve an problem left in Yang et al.
(IEEE Trans. Inf. Theory 61(9): 4905--4913, 2015).

15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
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The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ