General Discussions

Migration back to Discourse

Hello friends! So... about a half year ago we switched the platform used here on community.neo4j.com from Discourse to a vendor called Khoros. We were hopeful about Khoros as a platform that we could build upon to make a great website for the communi...

About the General Discussions board

The General Discussions board is meant as a location to ask non-technical questions either about Neo4j, or about the Graph Community in general. Use the General Discussion board for some of the following: Looking for a job OR hiring for a position...

Complex GraphQL Filtering With neo4j-graphql.js

GRANDstack - GraphQL, React, Apollo, Neo4j Database – 23 Apr 19 Complex GraphQL Filtering With neo4j-graphql.js Use filtering in your GraphQL queries without writing any resolvers Reading time: 3 min read ...

Recap of Neo4j's Global Graph Celebration Day!

Neo4j community members around the world hosted events on April 15th to celebrate the birth of the inventor of Graph Theory, Leonhard Euler. Here's a re-cap of this global movement! Neo4j Graph Database Platform – 18 Apr 19 ...

Example Exercises to Teach Neo4j And Reco Engines

Hi All, I want to expose my MBA class to Neo4j to show them the intuition behind recommendation engines. Between the Desktop tool and Browser, Neo4j is extremely accessible and with the built-in visualization, I want to try to reinforce the topic vi...

What’s cooking? Part 4: Similarities

It’s time for part 4 of the BBC Good Food Series. In this post we’ll learn how to use the Jaccard Similarity Algorithm to compute recipe to recipe similarities, and more.You can read the previous parts of the series to get up to date:Part 1: Importin...

Graph to graph with Elixir: Moving data between semantic and property graphs

I just published the post ‘Graph to graph with Elixir: Moving data between semantic and property graphs’. Medium – 12 Apr 19 Graph to graph with Elixir Moving data between semantic and property graphs Reading time: 23...

Is there a Neo4j Graph Storage documentation?

I work with Neo4j to store a huge and dense Knowledge Graph. I want to build a polyglot persistence architecture to speed up graph algorithms. To do this I need to know all details about the native Graph Storage of Neo4j. This is documented in Chapte...

Resolved! Convert date of birth property to age during MATCH

Hello, I have :Person nodes that have a dateOfBirth property. I need to filter out these nodes by an age range In my mind, I'm envisioning something like: MATCH (n:Person) WHERE getAge(n.dateOfBirth) >= 30 AND getAge(n.dateOfBirth) <= 50 RETURN n Is...

Realtime notifications of node changes

Hello, I'm working on a dating app. I just setup the "Like" relationships and I'm trying to work out a way to notify the other user that someone like them (if they're logged in). I looked at the APOC triggers, but they seem to be more of "call a web ...

Trouble with algo.pagerank()

I am trying to create a page rank for my FIELD nodes based on the number of MODIFIES relationships they have. I am using the guide to create my call CALL algo.pageRank("FIELD", "MODIFIES", {iterations:5, dampingFactor:0.85, weightProperty: null, writ...

Single file graph app example just "spins" (doesn't load). I followed instructions

Here's a picture of the tutorial page that shows what I expect to see, and then on the right, what happens when I click "Development App" within Neo4j Desktop.

Jaccard and merging similar nodes

Hi everyone, I hope you are enjoying Neo4j as I do. I am working on a graph where I have nodes with similar relationships. To minimize the number of relationships in the graph, I am thinking to only keep one node of every similar group of nodes and c...