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Analysing the Offshore Leaks with graphs

The Offshore Leaks released in 2013 by the ICIJ is a rarity. It is a big dataset of real information about some of the most secret places on earth : the offshore financial centers. The investigation of the ICIJ brought to the surface many interesting stories including the suspicious activities of the President of Azerbaijan. We […]

Graph Viz 101: a visual language of node-link diagrams

Graph Viz 101 is a series of posts to teach the basics of graph visualization, written by Sébastien Heymann in collaboration with Bénédicte Le Grand of Université de Paris 1. This is our fifth post, please discuss it below! In this blog post we introduce the mapping of data to visual representations in node-link diagrams, […]

Stolen credit cards and fraud detection with Neo4j

Have you ever had your credit card stolen? It is not an uncommon situation. If it happens to you and you’re lucky, your bank will end up paying for the operations made with the credit card. But what happens behind the scene? Do criminals get caught? We are going to see that using graph technologies […]

Using Neo4j to build a recommendation engine based on collaborative filtering

We have see recently how to use a Neo4j database to run a recommendation engine for an online dating site (or for any recommendation problem). Today, we are going to see a different approach to that same problem based on collaborative filtering. What is collaborative filtering? Collaborative filtering is a technique used by recommendation engines. […]

Recommendation and graphs : an online dating use case

Graph technologies are very good for recommendation. It is no wonder that the biggest online dating websites are using it. We are going to see through a concrete example how to use graphs to find love with the Neo4j graph database. Online dating and graphs : a love story? In the last months a few […]

Can graphs help fight gangs?

Using diseases and businesses as metaphors to understand gangs create interesting insights. According to new research from Yale and the West Point Military Academy, graph theory can be applied by law enforcement agencies. Armed with graphs, they can identify at risk individuals or target gang leaders. Is homicide a contagious disease? Cristopher Wilderman and Andrew Papachristos […]

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