High-Order Pooling for Graph Neural Networks with Tensor Decomposition

• URL: http://arxiv.org/abs/2205.11691v1
• Date: Tue, 24 May 2022 01:12:54 GMT
• Title: High-Order Pooling for Graph Neural Networks with Tensor Decomposition
• Authors: Chenqing Hua and Guillaume Rabusseau and Jian Tang
• Abstract summary: Graph Neural Networks (GNNs) are attracting growing attention due to their effectiveness and flexibility in modeling a variety of graph-structured data. We propose the Graphized Neural Network (tGNN), a highly expressive GNN architecture relying on tensor decomposition to model high-order non-linear node interactions.
• Score: 23.244580796300166
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Graph Neural Networks (GNNs) are attracting growing attention due to their effectiveness and flexibility in modeling a variety of graph-structured data. Exiting GNN architectures usually adopt simple pooling operations (e.g., sum, average, max) when aggregating messages from a local neighborhood for updating node representation or pooling node representations from the entire graph to compute the graph representation. Though simple and effective, these linear operations do not model high-order non-linear interactions among nodes. We propose the Tensorized Graph Neural Network (tGNN), a highly expressive GNN architecture relying on tensor decomposition to model high-order non-linear node interactions. tGNN leverages the symmetric CP decomposition to efficiently parameterize permutation-invariant multilinear maps for modeling node interactions. Theoretical and empirical analysis on both node and graph classification tasks show the superiority of tGNN over competitive baselines. In particular, tGNN achieves state-of-the-art results on two OGB node classification datasets and one OGB graph classification dataset.

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