Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Three-Stage Algorithm for the Large Scale Dynamic Vehicle Routing
  Problem with an Industry 4.0 Approach   Companies are eager to have a smart supply chain especially when they have a
dynamic system. Industry 4.0 is a concept which concentrates on mobility and
real-time integration. Thus, it can be considered as a necessary component that
has to be implemented for a Dynamic Vehicle Routing Problem. The aim of this
research is to solve large-scale DVRP (LSDVRP) in which the delivery vehicles
must serve customer demands from a common depot to minimize transit cost while
not exceeding the capacity constraint of each vehicle. In LSDVRP, it is
difficult to get an exact solution and the computational time complexity grows
exponentially. To find near optimal answers for this problem, a hierarchical
approach consisting of three stages callled cluster first, route construction
second, route improvement third is proposed. The major contribution of this
paper is dealing with large-size real-world problems to decrease the
computational time complexity. The results confirmed that the proposed
methodology is applicable.

4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess