activity
20202023
most citedNetworked Time Series Imputation via Position-aware Graph Enhanced Variational Autoencoders

29 citations · 97 across the 19 of their papers we have counts for

collaborators

19 papers

cs.IR2023★ 1 cited

On the Sweet Spot of Contrastive Views for Knowledge-enhanced Recommendation

Haibo Ye, Xinjie Li, Yuan Yao +1

In recommender systems, knowledge graph (KG) can offer critical information that is lacking in the original user-item interaction graph (IG). Recent process has explored this direc…

cs.HC2023

Calliope-Net: Automatic Generation of Graph Data Facts via Annotated Node-link Diagrams

Qing Chen, Nan Chen, Wei Shuai +4

Graph or network data are widely studied in both data mining and visualization communities to review the relationship among different entities and groups. The data facts derived fr…

cs.IR2023★ 1 cited

Ensuring User-side Fairness in Dynamic Recommender Systems

Hyunsik Yoo, Zhichen Zeng, Jian Kang +7

User-side group fairness is crucial for modern recommender systems, aiming to alleviate performance disparities among user groups defined by sensitive attributes like gender, race,…

cs.LG2023★ 2 cited

Class-Imbalanced Graph Learning without Class Rebalancing

Zhining Liu, Ruizhong Qiu, Zhichen Zeng +7

Class imbalance is prevalent in real-world node classification tasks and poses great challenges for graph learning models. Most existing studies are rooted in a class-rebalancing (…

cs.LG2023

Privacy-Preserving Graph Machine Learning from Data to Computation: A Survey

Dongqi Fu, Wenxuan Bao, Ross Maciejewski +2

In graph machine learning, data collection, sharing, and analysis often involve multiple parties, each of which may require varying levels of data security and privacy. To this end…

cs.LG2023★ 29 cited

Networked Time Series Imputation via Position-aware Graph Enhanced Variational Autoencoders

Dingsu Wang, Yuchen Yan, Ruizhong Qiu +4

Multivariate time series (MTS) imputation is a widely studied problem in recent years. Existing methods can be divided into two main groups, including (1) deep recurrent or generat…

cs.LG2023

Noisy Positive-Unlabeled Learning with Self-Training for Speculative Knowledge Graph Reasoning

Ruijie Wang, Baoyu Li, Yichen Lu +6

This paper studies speculative reasoning task on real-world knowledge graphs (KG) that contain both \textit{false negative issue} (i.e., potential true facts being excluded) and \t…

cs.LG2023★ 2 cited

BeMap: Balanced Message Passing for Fair Graph Neural Network

Xiao Lin, Jian Kang, Weilin Cong +1

Fairness in graph neural networks has been actively studied recently. However, existing works often do not explicitly consider the role of message passing in introducing or amplify…

cs.LG2023★ 4 cited

Reconstructing Graph Diffusion History from a Single Snapshot

Ruizhong Qiu, Dingsu Wang, Lei Ying +3

Diffusion on graphs is ubiquitous with numerous high-impact applications. In these applications, complete diffusion histories play an essential role in terms of identifying dynamic…

cs.AI2023★ 3 cited

Logical Entity Representation in Knowledge-Graphs for Differentiable Rule Learning

Chi Han, Qizheng He, Charles Yu +3

Probabilistic logical rule learning has shown great strength in logical rule mining and knowledge graph completion. It learns logical rules to predict missing edges by reasoning on…

cs.LG2023

Neural Multi-network Diffusion towards Social Recommendation

Boxin Du, Lihui Liu, Jiejun Xu +2

Graph Neural Networks (GNNs) have been widely applied on a variety of real-world applications, such as social recommendation. However, existing GNN-based models on social recommend…

cs.CL2023★ 13 cited

KHAN: Knowledge-Aware Hierarchical Attention Networks for Accurate Political Stance Prediction

Yunyong Ko, Seongeun Ryu, Soeun Han +6

The political stance prediction for news articles has been widely studied to mitigate the echo chamber effect -- people fall into their thoughts and reinforce their pre-existing be…

cs.LG2023★ 4 cited

FairGen: Towards Fair Graph Generation

Lecheng Zheng, Dawei Zhou, Hanghang Tong +3

There have been tremendous efforts over the past decades dedicated to the generation of realistic graphs in a variety of domains, ranging from social networks to computer networks,…

cs.LG2023★ 19 cited

Do We Really Need Complicated Model Architectures For Temporal Networks?

Weilin Cong, Si Zhang, Jian Kang +5

Recurrent neural network (RNN) and self-attention mechanism (SAM) are the de facto methods to extract spatial-temporal information for temporal graph learning. Interestingly, we fo…

cs.LG2023★ 3 cited

STERLING: Synergistic Representation Learning on Bipartite Graphs

Baoyu Jing, Yuchen Yan, Kaize Ding +4

A fundamental challenge of bipartite graph representation learning is how to extract informative node embeddings. Self-Supervised Learning (SSL) is a promising paradigm to address…

cs.LG2022★ 13 cited

JuryGCN: Quantifying Jackknife Uncertainty on Graph Convolutional Networks

Jian Kang, Qinghai Zhou, Hanghang Tong

Graph Convolutional Network (GCN) has exhibited strong empirical performance in many real-world applications. The vast majority of existing works on GCN primarily focus on the accu…

cs.LG2022★ 3 cited

Solving Coupled Differential Equation Groups Using PINO-CDE

Wenhao Ding, Qing He, Hanghang Tong +2

As a fundamental mathmatical tool in many engineering disciplines, coupled differential equation groups are being widely used to model complex structures containing multiple physic…

cs.CE2022

PINO-MBD: Physics-informed Neural Operator for Solving Coupled ODEs in Multi-body Dynamics

Wenhao Ding, Qing He, Hanghang Tong +1

In multi-body dynamics, the motion of a complicated physical object is described as a coupled ordinary differential equation system with multiple unknown solutions. Engineers need…

cs.LG2020

Mobility Inference on Long-Tailed Sparse Trajectory

Lei Shi

Analyzing the urban trajectory in cities has become an important topic in data mining. How can we model the human mobility consisting of stay and travel from the raw trajectory dat…