Neo4j

Setup (on Ubuntu)

• install the package neo4j: sudo apt-get install neo4j
• change the default database in /etc/neo4j/neo4j.conf (the field dbms.active_database=<your database>.db)

Import a database

• stop the neo4j: sudo service stop neo4j
• delete the old database if necessary with sudo rm -r /var/lib/neo4j/data/databases/<your database>.db/
• make sure to create header files for your nodes and edges (example for the subject datastructure):
  • nodeheader: :ID(Subject),name,aliases:string[],category:LABEL,color
  • edgeheader: :START_ID(Subject),:END_ID(Subject),:TYPE
• import the new csv data:
  • sudo -u neo4j neo4j-admin import --mode=csv --database <your database>.db --nodes "nodeheader,<node file>" --relationships "edgeheader,<edge file>"
  • you can concatenate multiple csv files for the node and edge import
• start the neo4j: sudo service start neo4j