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[GNN] graphic gnn:a gender Introduction (including video)
2022-07-07 06:34:00 【Quietly like big white】
Catalog
GNN
Why
What
Tasks
At present, the most common is node classification and link prediction
Figure classification is common in proteins 、 Pharmaceutical field
How
features X
Adjacency matrix A（ Connection ）
Express by local neighborhood
2 layer GNN Example
Calculation C Nodes represent
Calculation D node Express
The key
The core ： Permutation invariance
That is, exchange any node order anyway , Will get a unique output , Corresponding to unique graph
Equivariant
That is, input change , The output changes accordingly
MP
GCN
violet ： Aggregate neighborhood
Blue ：W news ,f Activate ,B Parameters
Orange ： In fact, what has a greater impact on the final output is the node's own information
GAT
Reference resources
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