List/Grid Tag Archives: Neo4j

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Neo4j: Making implicit relationships explicit & bidirectional relationships

I recently read Michal Bachman’s post about bidirectional relationships in Neo4j in which he suggests that for some relationship types we’re not that interested in the relationship’s ...
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Neo4j: Exploring new data sets with help from Neo4j browser

One of the things that I’ve found difficult when looking at a new Neo4j database is working out the structure of the data it contains. I’m used to relational databases where you ...
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neo4j/cypher: Getting the hang of query parameters

For as long as I’ve been using neo4j‘s cypher query language Michael has been telling me to use parameters in my queries but the performance of the queries was always acceptable ...
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Graph Processing: Betweeness Centrality – neo4j’s cypher vs graphstream

Last week I wrote about the betweenness centrality algorithm and my attempts to understand it using graphstream and while reading the source I realised that I might be able to put something ...
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Neo4j Java REST Binding – Part 2 (Batching)

In Part 1, we talked about setting up a connection to the Neo4j Server using the Java REST Binding. Let’s now go into some details about transactions, batching, and what the REST ...
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Getting started with the Neo4j Java Rest Binding (Heroku deployment)

Believe it or not, the last couple of days were my first attempt at using Neo4j’s Java Rest Binding. My earlier application on Heroku, Flavorwocky, used the Grails Neo4j plugin and ...
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Mini Search Engine – Just the basics, using Neo4j, Crawler4j, Graphstream and Encog

Continuing to chapter 4 of Programming Collection Intelligence  (PCI) which is implementing a search engine. I may have bitten off a little more than I should of in 1 exercise. Instead ...
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Testing Spring Data Neo4j Applications with NoSQLUnit

Spring Data Neo4j is the project within Spring Data project which provides an extension to the Spring programming model for writing applications that uses Neo4j as graph database. To ...
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Optimizing Neo4j Cypher queries

Last week, I spent a good number of hours trying to optimize around 20 Cypher queries that were performing disastrously(36866ms to 155575ms) with data from a live system. After some ...
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Flavor of the month – Neo4j and Heroku

Neo4j launched a challenge earlier this year called “Seed the Cloud” to get folks to create templates or demo applications on Heroku using the Neo4j add-on. After much internal ...
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