April 2023
Intermediate to advanced
354 pages
8h 22m
English
Content preview from Hands-On Graph Neural Networks Using Python
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8
Scaling Up Graph Neural Networks with GraphSAGE
GraphSAGE is a GNN architecture designed to handle large graphs. In the tech industry, scalability is a key driver for growth. As a result, systems are inherently designed to accommodate millions of users. This ability requires a fundamental shift in how the GNN model works compared to GCNs and GATs. Thus, it is no surprise that GraphSAGE is the architecture of choice for tech companies such as Uber Eats and Pinterest.
In this chapter, we will learn about the two main ideas behind GraphSAGE. First, we will describe its neighbor sampling technique, which is at the core of its performance in terms of scalability. We will then explore three aggregation operators used to produce node embeddings. ...
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