Using pagerank to find influential customers

General
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1

Hello Everyone! My name is Vidhi and I am new to neo4j. I was trying to achieve a requirement where I am trying to find most influential customers based on the FRIENDS relationship which I already have setup. Sample code for my different nodes in database is as follows:

CREATE (p1:Product {Category:'phones', Id:'11', productName: 'iPhone 11 Pro', productPrice: '1249.99', productImage: '11.png', productManufacturer: 'Apple', productCondition: 'New', productDiscount: '20', productonsale: 'no', inventory: '30'})

CREATE (c1:Customer {name:' Smith Rebecca', street: '993 Alsip Alora', city:'Chicago', state: 'IL', zip: '60803', credit_card:'1234-1234-2345-3456'})

CREATE (or1:Order {Order_ID:'409A0', orderName:'Sony Bravia', Order_Date:'2020-10-23'})

CREATE (c1)-[:PLACED_ORDER {status:'Approved', Order_Returned:'yes'}]->(or1)

CREATE (or1)-[:SOLD {Product_Name:'Sony Bravia'}]->(p37)

CREATE (c1)-[:WROTE_REVIEW {Review:'Awesome product'}]->(or1)

CREATE (or1)-[:REVIEWS {Product_Name:'Sony Bravia', rating:'5'}]->(p37)

CREATE (c1)-[:FRIENDS ]->(c2)

CREATE (c1)-[:SHARED]->(p1)- [:PRODUCT_WITH]->(c2)

I want to create a model and test influential reviewers and superconnectors using PageRank, ArticleRank, and Betweenees. I used the following MERGE operation for creating nodes and relationships:

// Node Labels
MERGE (c:Customer {name: "Customer"})
MERGE (ct:Category{name: "Category"})
MERGE (p:Product {name: "Product"})
MERGE (o:Order {name: "Order"})
MERGE (r:Review {name: "Review"})

// Relationship Types
MERGE (c)-[:FRIENDS]->(c)
MERGE (p)-[:IN_CATEGORY]->(ct)
MERGE (c)-[:WROTE_REVIEW]->(r)
MERGE (c)-[:PLACED_ORDER]->(o)
MERGE (o)-[:SOLD]->(p)
MERGE (r)-[:REVIEWS]->(p)

The table shows empty though. Where am I doing it wrong.

Also, for creating pagerank, I used the following query but it gives me error no node available:

CALL gds.pageRank.write({
nodeQuery: 'MATCH (c:Customer)-[:WROTE_REVIEW]->(r:Review), ((r:Review )-[:REVIEWS]->( o:Order)), ((o:Order )-[:SOLD]->( p:Product)), (p)-[:IN_CATEGORY]->(:Category {category: $category}) WITH c, count(*) AS reviews WHERE reviews >= $cutoff RETURN id(c) AS id',
relationshipQuery: 'MATCH (c1:Customer)-[:WROTE_REVIEW]->(r:Review), ((r:Review )-[:REVIEWS]->( o:Order)), ((o:Order )-[:SOLD]->( p:Product)), (p)-[:IN_CATEGORY]->(:Category {category: $category}) MATCH (c1)-[:FRIENDS]->(c2) RETURN id(c1) as source, id(c2) AS target',
writeProperty: "phonePagerank",
validateRelationships: false,
parameters: {category: "phones", cutoff: 0}
})
YIELD nodePropertiesWritten, createMillis, computeMillis, writeMillis, ranIterations
RETURN nodePropertiesWritten, createMillis, computeMillis, writeMillis, ranIterations

Can someone please help me for same.

Thanks

2

It would be probably good if you could share your full test load script or sample database.

Can you split up your GDS work into

  1. loading the graph to also see how many nodes and relationships get in there
  2. execution the algorithms
3

Hello Michael,

Thanks for your suggestion, but I'm not working on this dataset anymore.