Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An Integer Programming Model for the Dynamic Location and Relocation of
  Emergency Vehicles: A Case Study   In this paper, we address the dynamic Emergency Medical Service (EMS)
systems. A dynamic location model is presented that tries to locate and
relocate the ambulances. The proposed model controls the movements and
locations of ambulances in order to provide a better coverage of the demand
points under different fluctuation patterns that may happen during a given
period of time. Some numerical experiments have been carried out by using some
real-world data sets that have been collected through the French EMS system.

0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
2
The categories of this paper are: math