activity
20232025
most citedConversational Question Answering with Reformulations over Knowledge Graph

2 citations · 4 across the 7 of their papers we have counts for

collaborators

8 papers

cs.LG2025

Adversarial Bias: Data Poisoning Attacks on Fairness

Eunice Chan, Hanghang Tong

With the growing adoption of AI and machine learning systems in real-world applications, ensuring their fairness has become increasingly critical. The majority of the work in algor…

cs.LG2025

Hephaestus: Mixture Generative Modeling with Energy Guidance for Large-scale QoS Degradation

Nguyen Do, Bach Ngo, Youval Kashuv +3

We study the Quality of Service Degradation (QoSD) problem, in which an adversary perturbs edge weights to degrade network performance. This setting arises in both network infrastr…

cs.IR2024

Time Will Tell: Harness Time to Denoise Collaborative Filtering

Xinyu He, Jose Sepulveda, Mostafa Rahmani +3

Neural graph collaborative filtering is a powerful tool for recommendation due to its superb capability of capturing the user-item interaction. Despite the substantial progress, th…

cs.LG2024

On the Generalization Capability of Temporal Graph Learning Algorithms: Theoretical Insights and a Simpler Method

Weilin Cong, Jian Kang, Hanghang Tong +1

Temporal Graph Learning (TGL) has become a prevalent technique across diverse real-world applications, especially in domains where data can be represented as a graph and evolves ov…

cs.CL2023★ 2 cited

Conversational Question Answering with Reformulations over Knowledge Graph

Lihui Liu, Blaine Hill, Boxin Du +2

Conversational question answering (convQA) over knowledge graphs (KGs) involves answering multi-turn natural language questions about information contained in a KG. State-of-the-ar…

cs.LG2023★ 1 cited

Certified Defense on the Fairness of Graph Neural Networks

Yushun Dong, Binchi Zhang, Hanghang Tong +1

Graph Neural Networks (GNNs) have emerged as a prominent graph learning model in various graph-based tasks over the years. Nevertheless, due to the vulnerabilities of GNNs, it has…

cs.LG2023

Deceptive Fairness Attacks on Graphs via Meta Learning

Jian Kang, Yinglong Xia, Ross Maciejewski +2

We study deceptive fairness attacks on graphs to answer the following question: How can we achieve poisoning attacks on a graph learning model to exacerbate the bias deceptively? W…

cs.LG2023★ 1 cited

Hierarchical Multi-Marginal Optimal Transport for Network Alignment

Zhichen Zeng, Boxin Du, Si Zhang +3

Finding node correspondence across networks, namely multi-network alignment, is an essential prerequisite for joint learning on multiple networks. Despite great success in aligning…