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Graph Algorithms: Examples in Spark and Neo4j
Sample code and tips for over 20 practical graph algorithms. Find vulnerabilities, detect communities and 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're very delighted to talk with Dr. Alessandro Negro, the Chief Scientist of GraphAware, who authored the recently published book, Graph-Powered Machine Learning. Dr. Negro has been a long-time member of the graph community, and was the main author of the very first recommendation engine based on ...Read More
Monitoring Neo4j Servers and Clusters
Editor’s Note: This presentation was given by David Allen at NODES 2019. Presentation Summary David Allen is a Partner Solution Architect at Neo4j. Today’s talk features monitoring clusters and single instances. Monitoring can be pretty dense and complicated. Neo4j exposes a couple of ...Read More
Money laundering is among the hardest activities to detect in the world of financial crime. Funds move in plain sight through standard financial instruments, transactions, intermediaries, legal entities and institutions – avoiding detection by banks and law enforcement. The costs in regulatory fines and ...Read More