extract a social network from a history openstreetmap file http://planet.openstreetmap.org/planet/full-history/

1 - download a history planet file http://planet.openstreetmap.org/planet/full-history/

2 - extract the area with osm-history-splitter

3 - create the file osmsna.style with this informations

node,way  osm_user       text
node,way  osm_uid        int8
node,way  osm_version    int8
node,way  osm_timestamp  text

4 - import the data in postgis

osm2pgsql -P 5432 -U dbuser -W -d dbname -u -m -x -k -S /path/of/osmsna.style file_history.osh

5 - create the graph

 python netsosmers.py -s localhost -u dbuser -w dbpassword -d dbname -i -o graphfile -g gexf

note: the "-i" calculate the interactions between user (this need time)

6 - analyze the graph with a tool like gephi

gefx file of the openstreetmap network of Trento - Italy

https://github.com/napo/osmsna/raw/master/examples/trento.gexf

viewer of the network in Trento - Italy

http://napo.github.io/osmsna/

image of the network in Trento - Italy

http://www.slideshare.net/napo/the-collaboration-network-in-osm-the-case-of-italy

the data come from OpenStreetMap for this reason the datasets produced from this software are licensed as ODbL - http://opendatacommons.org/licenses/odbl/