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Alex X. Zhang

3 accepted papers

2024

Hypergraph-Based Session Modeling: A Multi-Collaborative Self-Supervised Approach for Enhanced Recommender Systems

COLING 2024main

Session-based recommendation (SBR) is a challenging task that involves predicting a user’s next item click based on their recent session history. Presently, many state-of-the-art methodologies employ graph neural networks to model item transitions. Notwithstanding their impressive performance, graph…

Cited by 4SourcePDFScholar
2024

Improving Robustness of GNN-based Anomaly Detection by Graph Adversarial Training

COLING 2024main

Graph neural networks (GNNs) play a fundamental role in anomaly detection, excelling at the identification of node anomalies by aggregating information from neighboring nodes. Nonetheless, they exhibit vulnerability to attacks, with even minor alterations in the graph structure or node attributes re…

Cited by 7SourcePDFScholar
2022

Eureka: Neural Insight Learning for Knowledge Graph Reasoning

COLING 2022main

The human recognition system has presented the remarkable ability to effortlessly learn novel knowledge from only a few trigger events based on prior knowledge, which is called insight learning. Mimicking such behavior on Knowledge Graph Reasoning (KGR) is an interesting and challenging research pro…

Cited by 0SourcePDFScholar