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Neo4j Graph Platform
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Forum Posts

Getting a subgraph from a big graph

Hi folks, I am attempting to get a subgraph and graph data(as '.txt 'or other formats) from a big graph Approach 1:  Randomly sample all nodes types from the large graph         MATCH (source: Node)-[r*..]-(target: Node) WHERE<>target.nam...

wumirose by Node Clone
  • 8 replies
  • 1 kudos

Pregel: Store Messages in Nodes

Hi everyone, I am currently trying to write a procedure using the Pregel-API, where I would like to use the compute-method, to store each of the incoming messages for a node. However, I am kind of struggling with the Messages-object right now. The pr...

Resolved! create relationships from csv with distinct node

Hello,  I have a CSV file as below:     node01,relationship,node02 A_01,B_dependency,B_01 A_02,B_dependency,B_02 A_03,A_dependency,A_01 A_03,A_dependency,A_02 A_04,B_dependency,B_04     I hope the graphe like below: 001               My cypher code :...

001.png 002.png

Resolved! how to find relationships with distinct node

I have write this query (I'm using Movie DBMS)     MATCH (p) WITH labels(p) as label, count(*) as nCount with collect({label:label, count: nCount}) as nodes call{ MATCH ()-[relationship]->() with type(relationship) as r, COUNT(relationship) as rCount...

Label Propagation - Parallel Heuristics

Hey! I'm investigating the label propagation algorithm as implemented in Neo4J's graph data science library. I think it's notable that it's possible to set concurrency parameters, even though the original (Raghavan et al.) paper on Label propagation ...

geo by Node
  • 2 replies
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Resolved! Count the number of duplicates in result

Hello community, I am new to neo4j and I'm trying to get a list of nodes (that has not a specific relation) and count node name duplicates. Query: MATCH (e:ExampleNode) WHERE NOT exists((e)-[:EXAMPLE_REL]->()) RETURN as name, count( as...