This README file accompanies the dataset representing the multiplex trade network of countries. If you use this dataset in your work either for analysis or for visualization, you should acknowledge/cite the following paper:
“Structural reducibility of multilayer networks”
M. De Domenico, V. Nicosia, A. Arenas, and V. Latora
Nature Communications 2015 6, 6864
that can be found at the following URL:
http://www.nature.com/ncomms/2015/150423/ncomms7864/abs/ncomms7864.html
This work has been supported by European Commission FET-Proactive project PLEXMATH (Grant No. 317614), the European project devoted to the investigation of multi-level complex systems and has been developed at the Alephsys Lab.
Visit
PLEXMATH: http://www.plexmath.eu/
ALEPHSYS: http://deim.urv.cat/~alephsys/
for further details.
We consider different types of trade relationships amoung countries, obtained from FAO (Food and Agriculture Organization of the United Nations). The worldwide food import/export network is an economic network in which layers represent products, nodes are countries and edges at each layer represent import/export relationships of a specific food product among countries. We collected the data from http://www.fao.org and built the multilayer network corresponding to trading in 2010.
The multiplex network used in the paper makes use of subset of the present data, which consist of 364 layers.
There are 214 nodes, labelled with integer ID between 1 and 214, and 318346 connections. The multiplex is directed and weighted, stored as edges list in the file
fao_trade_multiplex.edges
with format
layerID nodeID nodeID weight
The IDs of all layers are stored in
fao_trade_layers.txt
The IDs of nodes, together with their name can be found in the file
fao_trade_nodes.txt
This FAO MULTIPLEX TRADE DATASET is made available under the Open Database License: http://opendatacommons.org/licenses/odbl/1.0/. Any rights in individual contents of the database are licensed under the Database Contents License: http://opendatacommons.org/licenses/dbcl/1.0/
You should find a copy of the above licenses accompanying this dataset. If it is not the case, please contact us (see below).
A friendly summary of this license can be found here:
http://opendatacommons.org/licenses/odbl/summary/
and is reported in the following.
====================================================== ODC Open Database License (ODbL) Summary
This is a human-readable summary of the ODbL 1.0 license. Please see the disclaimer below.
You are free:
- To Share: To copy, distribute and use the database.
- To Create: To produce works from the database.
- To Adapt: To modify, transform and build upon the database.
As long as you:
-
Attribute: You must attribute any public use of the database, or works produced from the database, in the manner specified in the ODbL. For any use or redistribution of the database, or works produced from it, you must make clear to others the license of the database and keep intact any notices on the original database.
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Share-Alike: If you publicly use any adapted version of this database, or works produced from an adapted database, you must also offer that adapted database under the ODbL.
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Keep open: If you redistribute the database, or an adapted version of it, then you may use technological measures that restrict the work (such as DRM) as long as you also redistribute a version without such measures.
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If you find any error in the dataset or you have questions, please contact
Manlio De Domenico
University of Padua
Padua (Italy)
email: manlio.dedomenico@unipd.it