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Yeyuan Chen

2 accepted papers

2023

Calibrate and Boost Logical Expressiveness of GNN Over Multi-Relational and Temporal Graphs

NeurIPS 2023poster

As a powerful framework for graph representation learning, Graph Neural Networks (GNNs) have garnered significant attention in recent years. However, to the best of our knowledge, there has been no formal analysis of the logical expressiveness of GNNs as Boolean node classifiers over multi-relationa…

2023

Efficient Embeddings of Logical Variables for Query Answering over Incomplete Knowledge Graphs

AAAI 2023technical

The problem of answering complex First-order Logic queries over incomplete knowledge graphs is receiving growing attention in the literature. A promising recent approach to this problem has been to exploit neural link predictors, which can be effective in identifying individual missing triples in t…