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Working with Data in a Connected World: the Power of Graph Data Science

A PyData Global 2021 Tutorial

Written by Dr. Clair J. Sullivan, Data Science Advocate, Neo4j

Twitter: @CJLovesData1

Last updated: 2021-10-29

Introduction

Data science and machine learning have traditionally revolved around creating models based on the assumption that individual data points are uncorrelated. However, this ignores a signal that could potentially be very strong: the relationships between data points. We will look at this data as a network graph, and explore how to unlock the potential using a graph database.

We will cover the following in this tutorial:

  • An introduction to graphs and graph theory
  • How working with a graph differs from columnar data, such as is available via SQL or Pandas dataframes
  • A brief exploration of basic Python packages that can be used to interact with graphs
  • Creation of a free Sandbox graph database
  • A crash course in the Cypher query language
  • Creation of a basic graph of the CORA database
  • Generation of graph embeddings
  • Evaluation and comparison of machine learning models based on word embeddings versus graph embeddings

This tutorial assumes no previous knowledge.

Some helfpul resources

If you find any errors in this tutorial, please let us know by creating an issue in this repo!

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