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Graph Algorithms: Examples in Spark and Neo4j
Sample code and tips for over 20 practical algorithms. Find vulnerabilities, detect communities, improve machine learning.Read Now
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What is Neo4j?
Neo4j is a native graph database, built from the ground up to leverage not only data but also data relationships. Neo4j connects data as it’s stored, enabling queries never before imagined, at speeds never thought possible.
The Native Graph Advantage
Unlike traditional databases, which arrange data in rows, columns and tables, Neo4j has a flexible structure defined by stored relationships between data records.
With Neo4j, each data record, or node, stores direct pointers to all the nodes it’s connected to. Because Neo4j is designed around this simple, yet powerful optimization, it performs queries with complex connections orders of magnitude faster, and with more depth, than other databases.Learn More
Cypher — The Graph Query Language
With Neo4j, connections between data are stored – not computed at query time. Cypher is a powerful, graph-optimized query language that understands, and takes advantage of, these stored connections.
When trying to find patterns or insights within data, Cypher queries are often much simpler and easier to write than massive SQL JOINs. Since Neo4j doesn’t have tables, there are no JOINs to worry about. For comparison with SQL, here's a simple Cypher query matching all products in a category hierarchy:
Here's a similar query in SQL, which is longer and more complex. Unlike Cypher, where depth is unlimited, this SQL query selects just three levels of depth.
We have updated a course in our catalog of free online courses – Using a Machine Learning Workflow for Link Prediction. This course is intended for experienced Cypher and Python developers and data scientists who want to learn how to apply graph algorithms from the Neo4j Graph Data Science™ ...Read More
The Neo4j BI Connector: Many Use Cases
More people than ever have important data in a graph. So how can they view that data in their favorite BI tools? The Neo4j BI Connector delivers direct access to Neo4j graph data from business intelligence (BI) tools such as Tableau, Looker, TIBCO Spotfire Server and Microstrategy. It’s the first ...Read More
#GraphCast: Tableau & Neo4j in Real Time
Welcome to this week's #GraphCast – our series featuring what you might have missed in Neo4j media from the past fortnight. Last time, our Managing Editor, Jocelyn Hoppa, guided us to a short and sweet video on pathfinding algorithms. With shopping for cheerful gifts on my mind, I chose ...Read More