activity
20222025
most citedJoint Local Relational Augmentation and Global Nash Equilibrium for Federated Learning with Non-IID Data

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

collaborators

19 papers

cs.LG2025

Potent but Stealthy: Rethink Profile Pollution against Sequential Recommendation via Bi-level Constrained Reinforcement Paradigm

Jiajie Su, Zihan Nan, Yunshan Ma +6

Sequential Recommenders, which exploit dynamic user intents through interaction sequences, is vulnerable to adversarial attacks. While existing attacks primarily rely on data poiso…

cs.CV2025

FOCoOp: Enhancing Out-of-Distribution Robustness in Federated Prompt Learning for Vision-Language Models

Xinting Liao, Weiming Liu, Jiaming Qian +6

Federated prompt learning (FPL) for vision-language models is a powerful approach to collaboratively adapt models across distributed clients while preserving data privacy. However,…

cs.IR2025

Distilling Transitional Pattern to Large Language Models for Multimodal Session-based Recommendation

Jiajie Su, Qiyong Zhong, Yunshan Ma +5

Session-based recommendation (SBR) predicts the next item based on anonymous sessions. Traditional SBR explores user intents based on ID collaborations or auxiliary content. To fur…

cs.IR2025★ 1 cited

Joint Similarity Item Exploration and Overlapped User Guidance for Multi-Modal Cross-Domain Recommendation

Weiming Liu, Chaochao Chen, Jiahe Xu +6

Cross-Domain Recommendation (CDR) has been widely investigated for solving long-standing data sparsity problem via knowledge sharing across domains. In this paper, we focus on the…

cs.LG2024★ 1 cited

FOOGD: Federated Collaboration for Both Out-of-distribution Generalization and Detection

Xinting Liao, Weiming Liu, Pengyang Zhou +6

Federated learning (FL) is a promising machine learning paradigm that collaborates with client models to capture global knowledge. However, deploying FL models in real-world scenar…

cs.LG2024★ 1 cited

Rethinking the Representation in Federated Unsupervised Learning with Non-IID Data

Xinting Liao, Weiming Liu, Chaochao Chen +7

Federated learning achieves effective performance in modeling decentralized data. In practice, client data are not well-labeled, which makes it potential for federated unsupervised…

cs.IR2024★ 1 cited

Personalized Behavior-Aware Transformer for Multi-Behavior Sequential Recommendation

Jiajie Su, Chaochao Chen, Zibin Lin +3

Sequential Recommendation (SR) captures users' dynamic preferences by modeling how users transit among items. However, SR models that utilize only single type of behavior interacti…

cs.CL2023

Federated Learning for Short Text Clustering

Mengling Hu, Chaochao Chen, Weiming Liu +2

Short text clustering has been popularly studied for its significance in mining valuable insights from many short texts. In this paper, we focus on the federated short text cluster…

cs.LG2023

Learning Uniform Clusters on Hypersphere for Deep Graph-level Clustering

Mengling Hu, Chaochao Chen, Weiming Liu +3

Graph clustering has been popularly studied in recent years. However, most existing graph clustering methods focus on node-level clustering, i.e., grouping nodes in a single graph…

cs.IR2023★ 5 cited

In-processing User Constrained Dominant Sets for User-Oriented Fairness in Recommender Systems

Zhongxuan Han, Chaochao Chen, Xiaolin Zheng +4

Recommender systems are typically biased toward a small group of users, leading to severe unfairness in recommendation performance, i.e., User-Oriented Fairness (UOF) issue. The ex…

cs.LG2023★ 10 cited

Joint Local Relational Augmentation and Global Nash Equilibrium for Federated Learning with Non-IID Data

Xinting Liao, Chaochao Chen, Weiming Liu +7

Federated learning (FL) is a distributed machine learning paradigm that needs collaboration between a server and a series of clients with decentralized data. To make FL effective i…

cs.LG2023

HyperFed: Hyperbolic Prototypes Exploration with Consistent Aggregation for Non-IID Data in Federated Learning

Xinting Liao, Weiming Liu, Chaochao Chen +5

Federated learning (FL) collaboratively models user data in a decentralized way. However, in the real world, non-identical and independent data distributions (non-IID) among client…

cs.CL2023

Robust Representation Learning with Reliable Pseudo-labels Generation via Self-Adaptive Optimal Transport for Short Text Clustering

Xiaolin Zheng, Mengling Hu, Weiming Liu +2

Short text clustering is challenging since it takes imbalanced and noisy data as inputs. Existing approaches cannot solve this problem well, since (1) they are prone to obtain dege…

cs.IR2023★ 5 cited

PPGenCDR: A Stable and Robust Framework for Privacy-Preserving Cross-Domain Recommendation

Xinting Liao, Weiming Liu, Xiaolin Zheng +2

Privacy-preserving cross-domain recommendation (PPCDR) refers to preserving the privacy of users when transferring the knowledge from source domain to target domain for better perf…

cs.IR2022★ 3 cited

DDGHM: Dual Dynamic Graph with Hybrid Metric Training for Cross-Domain Sequential Recommendation

Xiaolin Zheng, Jiajie Su, Weiming Liu +1

Sequential Recommendation (SR) characterizes evolving patterns of user behaviors by modeling how users transit among items. However, the short interaction sequences limit the perfo…

cs.IR2022

Exploiting Variational Domain-Invariant User Embedding for Partially Overlapped Cross Domain Recommendation

Weiming Liu, Xiaolin Zheng, Mengling Hu +1

Cross-Domain Recommendation (CDR) has been popularly studied to utilize different domain knowledge to solve the cold-start problem in recommender systems. Most of the existing CDR…

cs.IR2022

HCFRec: Hash Collaborative Filtering via Normalized Flow with Structural Consensus for Efficient Recommendation

Fan Wang, Weiming Liu, Chaochao Chen +2

The ever-increasing data scale of user-item interactions makes it challenging for an effective and efficient recommender system. Recently, hash-based collaborative filtering (Hash-…

cs.IR2022★ 2 cited

Partial Relaxed Optimal Transport for Denoised Recommendation

Yanchao Tan, Carl Yang Member, Xiangyu Wei +2

The interaction data used by recommender systems (RSs) inevitably include noises resulting from mistaken or exploratory clicks, especially under implicit feedbacks. Without proper…

cs.IR2022

Collaborative Filtering with Attribution Alignment for Review-based Non-overlapped Cross Domain Recommendation

Weiming Liu, Xiaolin Zheng, Mengling Hu +1

Cross-Domain Recommendation (CDR) has been popularly studied to utilize different domain knowledge to solve the data sparsity and cold-start problem in recommender systems. In this…