Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Branch-and-Price approach for the Continuous Multifacility Monotone
  Ordered Median Problem   In this paper, we address the Continuous Multifacility Monotone Ordered
Median Problem. This problem minimizes a monotone ordered weighted median
function of the distances between given demand points in $\mathbb{R}^d$ and its
closest facility among the $p$ selected, also in a continuous space. We propose
a new branch-and-price procedure for this problem, and two mathehuristics. One
of them is a decomposition-based procedure and the other an aggregation-based
heuristic. We give detailed discussions of the validity of the exact
formulations and also specify the implementation details of all the solution
procedures. Besides, we assess their performance in an extensive computational
experience that shows the superiority of the branch-and-price approach over the
compact formulation in medium-sized instances. To handle larger instances it is
advisable to resort to the matheuristics that also report rather good results.

19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn