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Technical GlossaryDeep Learning

Graph Pooling

A GNN operation that aims to compress node information into more compact and task-relevant representations.

Graph pooling becomes important when moving from node-level information to graph-level representations. Similar in spirit to pooling in CNNs, it aims to produce larger structural summaries. It is used in tasks such as molecule classification, graph-based anomaly detection, and structural summarization. However, deciding which nodes or substructures to preserve is a critical design choice.