Search Results for author: Zongwei Wang

Found 8 papers, 4 papers with code

Poisoning Attacks against Recommender Systems: A Survey

1 code implementation3 Jan 2024 Zongwei Wang, Min Gao, Junliang Yu, Hao Ma, Hongzhi Yin, Shazia Sadiq

This survey paper provides a systematic and up-to-date review of the research landscape on Poisoning Attacks against Recommendation (PAR).

Recommendation Systems

Efficient Bi-Level Optimization for Recommendation Denoising

2 code implementations19 Oct 2022 Zongwei Wang, Min Gao, Wentao Li, Junliang Yu, Linxin Guo, Hongzhi Yin

To efficiently solve this bi-level optimization problem, we employ a weight generator to avoid the storage of weights and a one-step gradient-matching-based loss to significantly reduce computational time.

Data Augmentation Denoising +1

Predictive and Contrastive: Dual-Auxiliary Learning for Recommendation

no code implementations8 Mar 2022 Yinghui Tao, Min Gao, Junliang Yu, Zongwei Wang, Qingyu Xiong, Xu Wang

To explore recommendation-specific auxiliary tasks, we first quantitatively analyze the heterogeneous interaction data and find a strong positive correlation between the interactions and the number of user-item paths induced by meta-paths.

Auxiliary Learning Self-Supervised Learning

Who Are the Best Adopters? User Selection Model for Free Trial Item Promotion

no code implementations19 Feb 2022 Shiqi Wang, Chongming Gao, Min Gao, Junliang Yu, Zongwei Wang, Hongzhi Yin

By providing users with opportunities to experience goods without charge, a free trial makes adopters know more about products and thus encourages their willingness to buy.

Marketing reinforcement-learning +1

Ready for Emerging Threats to Recommender Systems? A Graph Convolution-based Generative Shilling Attack

no code implementations22 Jul 2021 Fan Wu, Min Gao, Junliang Yu, Zongwei Wang, Kecheng Liu, Xu Wange

To explore the robustness of recommender systems, researchers have proposed various shilling attack models and analyzed their adverse effects.

Generative Adversarial Network Recommendation Systems

Path-Based Reasoning over Heterogeneous Networks for Recommendation via Bidirectional Modeling

1 code implementation10 Aug 2020 Junwei Zhang, Min Gao, Junliang Yu, Linda Yang, Zongwei Wang, Qingyu Xiong

Despite their effectiveness, these models are often confronted with the following limitations: (1) Most prior path-based reasoning models only consider the influence of the predecessors on the subsequent nodes when modeling the sequences, and ignore the reciprocity between the nodes in a path; (2) The weights of nodes in the same path instance are usually assumed to be constant, whereas varied weights of nodes can bring more flexibility and lead to expressive modeling; (3) User-item interactions are noisy, but they are often indiscriminately exploited.

Explainable Recommendation Recommendation Systems

Face Aging With Identity-Preserved Conditional Generative Adversarial Networks

2 code implementations CVPR 2018 Zongwei Wang, Xu Tang, Weixin Luo, Shenghua Gao

By grouping faces with target age together, the objective of face aging is equivalent to transferring aging patterns of faces within the target age group to the face whose aged face is to be synthesized.

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