Papers by Qiuyu Liang
Unifying Dual-Space Embedding for Entity Alignment via Contrastive Learning (2025.coling-main)
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| Challenge: | Entity alignment (EA) aims to match identical entities across knowledge graphs (KGs) Graph neural network-based entity alignment methods have achieved promising results in Euclidean space, but KGs often contain complex local and hierarchical structures, which are hard to represent in a single space. |
| Approach: | They propose a method which unifies dual-space embedding to preserve the intrinsic structure of KGs. |
| Outcome: | The proposed method achieves state-of-the-art in structure-based EA on benchmark datasets. |
Lˆ2GC:Lorentzian Linear Graph Convolutional Networks for Node Classification (2024.lrec-main)
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| Challenge: | Existing linear GCNs perform neural network operations in Euclidean space, which do not capture tree-like hierarchical structure of graphs. |
| Approach: | They propose a Lorentzian linear GCN framework that maps features into hyperbolic space and performs a feature transformation to capture the underlying tree-like structure of data. |
| Outcome: | The proposed framework achieves state-of-the-art accuracy on standard citation networks datasets and 81.3% on PubMed datasets. |
Distance-Adaptive Quaternion Knowledge Graph Embedding with Bidirectional Rotation (2025.coling-main)
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| Challenge: | Existing knowledge graph embedding models measure the plausibility of triplets either through semantic matching or distance scoring functions. |
| Approach: | They propose to combine semantic matching with entity’s geometric distance to better measure the plausibility of triplets. |
| Outcome: | The proposed model outperforms existing models on well-known knowledge graph completion benchmark datasets. |