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Xi Sun

3 accepted papers

2026

HC2-GNN: Hierarchical Graph Representation Learning for Efficient Text Classification

AAAI 2026technical

Graph Neural Networks (GNNs) offer superior modeling capabilities for text classification by capturing complex spatial features within semantic representations. However, existing graph-based approaches often suffer from computational inefficiency and limited ability to model both fine-grained local

Cited by 0SourcePDFScholar
2026

ST-TPP: Learning Semi-Transductive Temporal Point Processes with Gromov-Wasserstein Barycentric Regularization

AAAI 2026technical

The generative mechanisms behind real-world event sequences are often heterogeneous, leading to data that possesses inherent clustering structures. However, most existing temporal point processes (TPPs) treat different event sequences independently, without leveraging the clustering structures when

Cited by 0SourcePDFScholar