With Max De Marzi

1. Graph Databases Use Cases

2. What’s a Graph?

3. LIVES WITH
LOVES
OWNS
DRIVES
LOVES
name:“James”
age: 32
twitter:“@spam”
name:“Mary”
age: 35
property type:“car”
brand:“Volvo”
model:“V70”
Graph data model

4. Relational Tables

5. Join this way…

6. • all JOINs are executed every time you query
(traverse) the relationship
• executing a JOIN means to search for a key in
another table
• with Indices executing a JOIN means to lookup a key
• B-Tree Index: O(log(n))
• more entries => more lookups => slower JOINs
The Problem

7. People ConferencesAttend
143 Max
326
Big Data Tech Con
725
NoSQL Now
981 Chariot Data IO143 981
143 725
143 326

8. Max
Big Data Tech Con
NoSQL Now
Chariot Data IO
143
326
725
981
143 981
143 725
143 326

9. uid: MDM!
name: Max
uid: BDTC!
where: Burlinggame
uid: NSN!
where: San Francisco
uid: CDIO!
where: Philadelphia
Nodes
Relationships
member
member
member
A Property Graph

10. The Neo4j Secret Sauce
• Pointers instead of
look-ups
• Do all your “Joining”
on creation
• Spin spin spin
through this data
structure

11. Graph Buzz!

12. • Neo4j is the leading graph database in
the world today
• Most widely deployed: 500,000+
downloads
• Largest ecosystem: active forums,
code contributions, etc
• Most mature product: in development
since 2000, in 24/7 production since
2003
The Neo4j Graph Database

13. Early Adopters of Graph Tech

14. Evolution of Web Search
Survival of the Fittest
Pre-1999
WWW Indexing
Discrete Data
1999 - 2012
Google Invents
PageRank
Connected Data
(Simple)
2012-?
Google Knowledge Graph,
Facebook Graph Search
Connected Data
(Rich)

15. Open Source Example
http://maxdemarzi.com/2013/01/28/facebook-graph-
search-with-cypher-and-neo4j/

16. Evolution of Online Recruiting
1999
Keyword Search
Discrete Data
Survival of the Fittest
2011-12
Social Discovery
Connected Data

17. Open Source Example
http://maxdemarzi.com/2012/10/18/matches-are-the-
new-hotness/

18. Open Source Example
http://maxdemarzi.com/2012/10/18/matches-are-the-
new-hotness/

19. Open Source Example
http://maxdemarzi.com/2012/10/18/matches-are-the-
new-hotness/

20. Content Management
& Access Control
Network Asset
Management
Network Cell Analysis
Geo Routing
(Public Transport)
BioInformatics
Emergent Graph in Other Industries
(Actual Neo4j Graphs)
Insurance Risk Analysis

21. Open Source Example
http://maxdemarzi.com/2013/03/18/permission-
resolution-with-neo4j-part-1/

22. Web Browsing Portfolio Analytics
Mobile Social ApplicationGene Sequencing
Emergent Graph in Other Industries
(Actual Neo4j Graphs)

23. Open Source Example
http://maxdemarzi.com/2013/04/19/match-making-with-
neo4j/

24. Curriculum Graph

25. Neo Technology, Inc Confidential
Event Graph

26. Open Source Example
http://maxdemarzi.com/2014/09/11/tracking-user-paths-
in-an-ivr-with-neo4j/

27. Questions ?