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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
  1. Start Neo4j server.

  2. 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);
    
  3. Call the pagerank endpoint:

     :GET /v1/service/pagerank
    

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

  1. Check the pageranks of some nodes:

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

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