Northwind: Finding direct/transitive Reports in SQL and Neo4j’s Cypher

Every few months we run a relational to graph meetup at the Neo London office where we go through how…

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Netty: Testing encoders/decoders

I’ve been working with Netty a bit recently and having built a pipeline of encoders/decoders as described in this excellent…

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Neo4j: The BBC Champions League graph

A couple of weekends ago I started scraping the BBC live text feed of the Bayern Munich/Barcelona match, initially starting…

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Neo4j: The foul revenge graph

Last week I was showing the foul graph to my colleague Alistair who came up with the idea of running…

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Neo4j: Finding all shortest paths

One of the Cypher language features we show in Neo4j training courses is the shortest path function which allows you…

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Coding: Visualising a bitmap

Over the last month or so I’ve spent some time each day reading a new part of the Neo4j code…

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R: Replacing for loops with data frames

In my last blog post I showed how to derive posterior probabilities for the Think Bayes dice problem: Suppose I…

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R: Removing for loops

In my last blog post I showed the translation of a likelihood function from Think Bayes into R and in…

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Spark: Generating CSV files to import into Neo4j

About a year ago Ian pointed me at a Chicago Crime data set which seemed like a good fit for…

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