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Hanpeng Liu

4 accepted papers

2024

Leveraging Contrastive Learning for Enhanced Node Representations in Tokenized Graph Transformers

NeurIPS 2024poster

While tokenized graph Transformers have demonstrated strong performance in node classification tasks, their reliance on a limited subset of nodes with high similarity scores for constructing token sequences overlooks valuable information from other nodes, hindering their ability to fully harness gra…

Cited by 5SourcePDFScholar
2020

Feature Interaction Interpretability: A Case for Explaining Ad-Recommendation Systems via Neural Interaction Detection

ICLR 2020poster

Recommendation is a prevalent application of machine learning that affects many users; therefore, it is important for recommender models to be accurate and interpretable. In this work, we propose a method to both interpret and augment the predictions of black-box recommender systems. In particular,…

Cited by 75SourcecodeScholar
2018

Neural Interaction Transparency (NIT): Disentangling Learned Interactions for Improved Interpretability

NeurIPS 2018poster

Neural networks are known to model statistical interactions, but they entangle the interactions at intermediate hidden layers for shared representation learning. We propose a framework, Neural Interaction Transparency (NIT), that disentangles the shared learning across different interactions to obta…

Cited by 85SourcePDFScholar