Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Matheuristics for a Parallel Machine Scheduling Problem with
  Non-Anticipatory Family Setup Times: Application in the Offshore Oil and Gas
  Industry   In this paper, we address a variant of a batch scheduling problem with
identical parallel machines and non-anticipatory family setup times to minimize
the total weighted completion time. We developed an ILS and a GRASP
matheuristics to solve the problem using a constructive heuristic and two
MIP-based neighborhood searches, considering two batch scheduling mathematical
formulations. The problem derives from a ship scheduling problem related to
offshore oil & gas logistics, the Pipe Laying Support Vessel Scheduling Problem
(PLSVSP). The developed methods overcome the current solution approaches in the
PLSVSP literature, according to experiments carried out on a benchmark of 72
instances, with different sizes and characteristics, in terms of computational
time and solution quality. New best solutions are provided for all medium and
large-sized instances, achieving a reduction of more than 10% in the objective
function of the best case.

13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs