Neo4j SNN Plugin

This is a user-defined function for Neo4j which returns the number of shared nearest neighbors for two nodes.

Test & Build

gradle build

Deploy

Copy the built jar file found in ./build/libs/ to the Neo4j plugins directory. For the default Neo4j plugins path on Ubuntu 16.04+:

sudo cp ./build/libs/neo4j-snn-plugin.jar /var/lib/neo4j/plugins/

After copying the jar file, you need to restart the Neo4j service. On Ubuntu 16.04+:

sudo service neo4j restart

Usage

Now you can use the function com.github.soroushj.snn in Cypher queries:

MATCH (a:User {username: "alice"}), (b:User {username: "bob"})
RETURN com.github.soroushj.snn(a, b)