Neo4j

morenobonaventu · 10-03-2019

Hi, Is it possible to set a different relationship_grouping_threshold (formerly dense node threshold) as a part of initial data load using the neo4j-admin import tool? In neo4j.conf I see the option dbms.relationship_grouping_threshold but I believe ...

morenobonaventu · 03-23-2019

Consider the model (a1:Account)-->(t:Transfer {amount})-->(a2:Account) where, say, :Account represents a bank account and :Transfer represents a bank transfer containing the numeric property "amount". What is the best option to create additional rela...

morenobonaventu · 10-03-2019

Thanks @michael.hunger michael.hunger: No it will not fail as by default it's not running in parallel. My goal is indeed to use parallelism if possible. But I think we agree that if I change the default params to CALL apoc.periodic.iterate(".....

morenobonaventu · 03-24-2019

Ok, that makes things clearer. I think you could speed up by using the index on the property title in the second query. CALL algo.pageRank.stream( 'MATCH (t:TOPIC) WHERE t.title in ["Sport_utility_vehicle", "Sports_car", "Luxury_vehicle"] RETURN id(t...

morenobonaventu · 03-24-2019

How many node and relationships are you working with? Is the data all cached in ram? How big is the machine hosting the db? First thing I would try to understand is if the slow bit is the data load, or the actual execution of the page rank, or the so...

morenobonaventu · 03-23-2019

Have you tried using an index on the "title" property? CREATE INDEX ON :Topic(title) You can check if the index is ready or still populating by running the following cypher command ":schema"

Neo4j

User Statistics

User Activity

Behaviour of relationship grouping threshold for import-tool and live db

Aggregation of node triplets into tuples in parallel

Re: Aggregation of node triplets into tuples in parallel

Re: PageRank on subgraph of large graph

Re: PageRank on subgraph of large graph

Re: PageRank on subgraph of large graph