Contrastive learning for representation degeneration problem in sequential recommendation

R Qiu, Z Huang, H Yin, Z Wang - … conference on web search and data …, 2022 - dl.acm.org
Recent advancements of sequential deep learning models such as Transformer and BERT
have significantly facilitated the sequential recommendation. However, according to our …

Fast-adapting and privacy-preserving federated recommender system

Q Wang, H Yin, T Chen, J Yu, A Zhou, X Zhang - The VLDB Journal, 2022 - Springer
In the mobile Internet era, recommender systems have become an irreplaceable tool to help
users discover useful items, thus alleviating the information overload problem. Recent …

Multi-intention oriented contrastive learning for sequential recommendation

X Li, A Sun, M Zhao, J Yu, K Zhu, D **, M Yu… - Proceedings of the …, 2023 - dl.acm.org
Sequential recommendation aims to capture users' dynamic preferences, in which data
sparsity is a key problem. Most contrastive learning models leverage data augmentation to …

Interaction-level membership inference attack against federated recommender systems

W Yuan, C Yang, QVH Nguyen, L Cui, T He… - Proceedings of the ACM …, 2023 - dl.acm.org
The marriage of federated learning and recommender system (FedRec) has been widely
used to address the growing data privacy concerns in personalized recommendation …

Self-supervised hypergraph representation learning for sociological analysis

X Sun, H Cheng, B Liu, J Li, H Chen… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Modern sociology has profoundly uncovered many convincing social criteria for behavioral
analysis. Unfortunately, many of them are too subjective to be measured and very …

Pipattack: Poisoning federated recommender systems for manipulating item promotion

S Zhang, H Yin, T Chen, Z Huang… - Proceedings of the …, 2022 - dl.acm.org
Due to the growing privacy concerns, decentralization emerges rapidly in personalized
services, especially recommendation. Also, recent studies have shown that centralized …

Decentralized collaborative learning framework for next POI recommendation

J Long, T Chen, QVH Nguyen, H Yin - ACM Transactions on Information …, 2023 - dl.acm.org
Next Point-of-Interest (POI) recommendation has become an indispensable functionality in
Location-based Social Networks (LBSNs) due to its effectiveness in hel** people decide …

Graph condensation for inductive node representation learning

X Gao, T Chen, Y Zang, W Zhang… - 2024 IEEE 40th …, 2024 - ieeexplore.ieee.org
Graph neural networks (GNNs) encounter significant computational challenges when
handling large-scale graphs, which severely restricts their efficacy across diverse …

Hetefedrec: Federated recommender systems with model heterogeneity

W Yuan, L Qu, L Cui, Y Tong, X Zhou… - 2024 IEEE 40th …, 2024 - ieeexplore.ieee.org
Owing to the nature of privacy protection, feder-ated recommender systems (FedRecs) have
garnered increasing interest in the realm of on-device recommender systems. However …

Thinking inside the box: learning hypercube representations for group recommendation

T Chen, H Yin, J Long, QVH Nguyen, Y Wang… - Proceedings of the 45th …, 2022 - dl.acm.org
As a step beyond traditional personalized recommendation, group recommendation is the
task of suggesting items that can satisfy a group of users. In group recommendation, the core …