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Hands-On Graph Analytics with Neo4j

You're reading from   Hands-On Graph Analytics with Neo4j Perform graph processing and visualization techniques using connected data across your enterprise

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Product type Paperback
Published in Aug 2020
Publisher Packt
ISBN-13 9781839212611
Length 510 pages
Edition 1st Edition
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Author (1):
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Estelle Scifo Estelle Scifo
Author Profile Icon Estelle Scifo
Estelle Scifo
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Toc

Table of Contents (18) Chapters Close

Preface 1. Section 1: Graph Modeling with Neo4j
2. Graph Databases FREE CHAPTER 3. The Cypher Query Language 4. Empowering Your Business with Pure Cypher 5. Section 2: Graph Algorithms
6. The Graph Data Science Library and Path Finding 7. Spatial Data 8. Node Importance 9. Community Detection and Similarity Measures 10. Section 3: Machine Learning on Graphs
11. Using Graph-based Features in Machine Learning 12. Predicting Relationships 13. Graph Embedding - from Graphs to Matrices 14. Section 4: Neo4j for Production
15. Using Neo4j in Your Web Application 16. Neo4j at Scale 17. Other Books You May Enjoy

Defining importance

Determining the most important node of a graph depends on your definition of importance. This definition itself depends on the goal you are trying to achieve. In this chapter, we will study two examples of importance:

  • Information spread within a social network
  • Critical nodes in a road or computer network

We will learn that each of these problems can be tackled with centrality algorithms. In this section, we will consider the following graph as an example to help us understand the different definitions of importance:

Which node is the most important in this network? The answer depends on what important means in a given context. Let's consider the different ways of defining importance.

Popularity and information spread

The most obvious way to define importance is with the influencer concept. Most influential nodes have many connections and, as such, are well placed to spread information. In the context of social networks, influencers often get offered advertising...

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