Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Proceedings of the X International Workshop on Locational Analysis and
  Related Problems   The International Workshop on Locational Analysis and Related Problems will
take place during January 23-24, 2020 in Seville (Spain). It is organized by
the Spanish Location Network and the Location Group GELOCA from the Spanish
Society of Statistics and Operations Research(SEIO). The Spanish Location
Network is a group of more than 140 researchers from several Spanish
universities organized into 7 thematic groups. The Network has been funded by
the Spanish Government since 2003.
  One of the main activities of the Network is a yearly meeting aimed at
promoting the communication among its members and between them and other
researchers, and to contribute to the development of the location field and
related problems. The last meetings have taken place in C\'adiz (January
20-February 1, 2019), Segovia (September 27-29, 2017), M\'alaga (September
14-16, 2016), Barcelona (November 25-28, 2015), Sevilla (October 1-3, 2014),
Torremolinos (M\'alaga, June 19-21, 2013), Granada (May 10-12, 2012), Las
Palmas de Gran Canaria (February 2-5, 2011) and Sevilla (February 1-3, 2010).
  The topics of interest are location analysis and related problems. This
includes location models, networks, transportation, logistics, exact and
heuristic solution methods, and computational geometry, among others.

37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph