Custom Page Rank

This is an unmanaged extension running a Custom Pagerank algorithm on Companies with a SIMILAR relationship score >= 0.80.

Quick Start

1. Build it:

    mvn clean package
   

2. Copy target/pagerank-1.0.jar to the plugins/ directory of your Neo4j 2.3.0-M03 server.

    mv target/pagerank-1.0.jar neo4j/plugins/.
   

3. Configure Neo4j by adding a line to conf/neo4j-server.properties:

    org.neo4j.server.thirdparty_jaxrs_classes=com.maxdemarzi.pagerank=/v1
   

If you need to configure 2 extensions at the same time, use a comma between them:

    org.neo4j.server.thirdparty_jaxrs_classes=com.maxdemarzi.recruit=/v1,com.maxdemarzi.pagerank=/analytics

4. Start Neo4j server.

5. Create sample dataset:

    CREATE (a:Company {name:'a'})
    CREATE (b:Company {name:'b'})
    CREATE (c:Company {name:'c'})
    CREATE (d:Company {name:'d'})
    CREATE (e:Company {name:'e'})
    CREATE (f:Company {name:'f'})
    CREATE (g:Company {name:'g'})
    CREATE (h:Company {name:'h'})
    CREATE (i:Company {name:'i'})
    CREATE (j:Company {name:'j'})
    CREATE (k:Company {name:'k'})
    CREATE
      (b)-[:SIMILAR]->(c),
      (c)-[:SIMILAR]->(b),
      (d)-[:SIMILAR]->(a),
      (e)-[:SIMILAR]->(b),
      (e)-[:SIMILAR]->(d),
      (e)-[:SIMILAR]->(f),
      (f)-[:SIMILAR]->(b),
      (f)-[:SIMILAR]->(e),
      (g)-[:SIMILAR]->(b),
      (g)-[:SIMILAR]->(e),
      (h)-[:SIMILAR]->(b),
      (h)-[:SIMILAR]->(e),
      (i)-[:SIMILAR]->(b),
      (i)-[:SIMILAR]->(e),
      (j)-[:SIMILAR]->(e),
      (k)-[:SIMILAR]->(e);
   

6. Call the pagerank endpoint:

    :GET /v1/service/pagerank
   

You should see "PageRank for Company using SIMILAR relationship type Completed!"

7. Check the pageranks of some nodes:

    MATCH (n:Company) RETURN n.name, n.pagerank LIMIT 25;