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Tingyi Cai

4 accepted papers

2026

HyperGOOD: Towards Out-of-Distribution Detection in Hypergraphs

AAAI 2026technical

Out-of-distribution (OOD) detection plays a critical role in ensuring the robustness of machine learning models in open-world settings. While extensive efforts have been made in vision, language, and graph domains, the challenge of OOD detection in hypergraph-structured data remains unexplored. In t

Cited by 0SourcePDFScholar
2025

All Roads Lead to Rome: Exploring Edge Distribution Shifts for Heterophilic Graph Learning

IJCAI 2025

Heterophilic graph neural networks (GNNs) have gained prominence for their ability to learn effective representations in graphs with diverse, attribute-aware relationships. While existing methods leverage attribute inference during message passing to improve performance, they often struggle with cha

Cited by 0SourcePDFScholar
2025

HyperNear: Unnoticeable Node Injection Attacks on Hypergraph Neural Networks

ICML 2025poster

With the growing adoption of Hypergraph Neural Networks (HNNs) to model higher-order relationships in complex data, concerns about their security and robustness have become increasingly important. However, current security research often overlooks the unique structural characteristics of hypergraph…

2025

ML-GOOD: Towards Multi-Label Graph Out-Of-Distribution Detection

AAAI 2025technical

The out-of-distribution (OOD) detection on graph-structured data is crucial for deploying graph neural networks securely in open-world scenarios. However, existing methods have overlooked the prevalent scenario of multi-label classification in real-world applications. In this work, we investigate th…