Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Convex Matroid Optimization   We consider a problem of optimizing convex functionals over matroid bases. It
is richly expressive and captures certain quadratic assignment and clustering
problems. While generally NP-hard, we show it is polynomial time solvable when
a suitable parameter is restricted.

36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio