Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An exact column-generation approach for the lot-type design problem   We consider a fashion discounter distributing its many branches with integral
multiples from a set of available lot-types. For the problem of approximating
the branch and size dependent demand using those lots we propose a tailored
exact column generation approach assisted by fast algorithms for intrinsic
subproblems, which turns out to be very efficient on our real-world instances
as well as on random instances.

36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics