Hyperbolic Heterogeneous Graph Attention Networks
Jongmin Park Seunghoon Han Soohwan Jeong Sungsu Lim
Most previous heterogeneous graph embedding models represent elements in a
heterogeneous graph as vector representations in a low-dimensional Euclidean
space. However, because heterogeneous graphs inherently possess complex
structures, such as hierarchical or power-law structures, distortions can occur
when representing them in Euclidean space. To overcome this limitation, we
propose Hyperbolic Heterogeneous Graph Attention Networks (HHGAT) that learn
vector representations in hyperbolic spaces with meta-path instances. We
conducted experiments on three real-world heterogeneous graph datasets,
demonstrating that HHGAT outperforms state-of-the-art heterogeneous graph
embedding models in node classification and clustering tasks.