no code implementations • 25 Mar 2024 • Xinting Liao, Weiming Liu, Chaochao Chen, Pengyang Zhou, Fengyuan Yu, Huabin Zhu, Binhui Yao, Tao Wang, Xiaolin Zheng, Yanchao Tan
The former indicates that representation collapse in local model will subsequently impact the global model and other local models.
no code implementations • 5 Mar 2024 • Yingrong Wang, Anpeng Wu, Haoxuan Li, Weiming Liu, Qiaowei Miao, Ruoxuan Xiong, Fei Wu, Kun Kuang
This paper focuses on developing Pareto-optimal estimation and policy learning to identify the most effective treatment that maximizes the total reward from both short-term and long-term effects, which might conflict with each other.
1 code implementation • 22 Feb 2024 • Jiajie Su, Chaochao Chen, Zibin Lin, Xi Li, Weiming Liu, Xiaolin Zheng
To tackle these challenges, we propose a Personalized Behavior-Aware Transformer framework (PBAT) for MBSR problem, which models personalized patterns and multifaceted sequential collaborations in a novel way to boost recommendation performance.
no code implementations • 23 Nov 2023 • Mengling Hu, Chaochao Chen, Weiming Liu, Xinyi Zhang, Xinting Liao, Xiaolin Zheng
However, most existing graph clustering methods focus on node-level clustering, i. e., grouping nodes in a single graph into clusters.
no code implementations • 23 Nov 2023 • Mengling Hu, Chaochao Chen, Weiming Liu, Xinting Liao, Xiaolin Zheng
The robust short text clustering module aims to train an effective short text clustering model with local data in each client.
no code implementations • 4 Sep 2023 • Zhongxuan Han, Chaochao Chen, Xiaolin Zheng, Weiming Liu, Jun Wang, Wenjie Cheng, Yuyuan Li
By combining the fairness loss with the original backbone model loss, we address the UOF issue and maintain the overall recommendation performance simultaneously.
no code implementations • 17 Aug 2023 • Xinting Liao, Chaochao Chen, Weiming Liu, Pengyang Zhou, Huabin Zhu, Shuheng Shen, Weiqiang Wang, Mengling Hu, Yanchao Tan, Xiaolin Zheng
In server, GNE reaches an agreement among inconsistent and discrepant model deviations from clients to server, which encourages the global model to update in the direction of global optimum without breaking down the clients optimization toward their local optimums.
no code implementations • 26 Jul 2023 • Xinting Liao, Weiming Liu, Chaochao Chen, Pengyang Zhou, Huabin Zhu, Yanchao Tan, Jun Wang, Yue Qi
Firstly, HPTI in the server constructs uniformly distributed and fixed class prototypes, and shares them with clients to match class statistics, further guiding consistent feature representation for local clients.
1 code implementation • 23 May 2023 • Xiaolin Zheng, Mengling Hu, Weiming Liu, Chaochao Chen, Xinting Liao
To tackle the above issues, we propose a Robust Short Text Clustering (RSTC) model to improve robustness against imbalanced and noisy data.
no code implementations • 11 May 2023 • Xinting Liao, Weiming Liu, Xiaolin Zheng, Binhui Yao, Chaochao Chen
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 performance, which is vital for the long-term development of recommender systems.
no code implementations • 20 Oct 2022 • Hao Wang, Zhichao Chen, Jiajun Fan, Yuxin Huang, Weiming Liu, Xinggao Liu
As a basic research problem for building effective recommender systems, post-click conversion rate (CVR) estimation has long been plagued by sample selection bias and data sparsity issues.
no code implementations • 21 Sep 2022 • Xiaolin Zheng, Jiajie Su, Weiming Liu, Chaochao Chen
However, the short interaction sequences limit the performance of existing SR. To solve this problem, we focus on Cross-Domain Sequential Recommendation (CDSR) in this paper, which aims to leverage information from other domains to improve the sequential recommendation performance of a single domain.
no code implementations • 24 May 2022 • Fan Wang, Weiming Liu, Chaochao Chen, Mengying Zhu, Xiaolin Zheng
The ever-increasing data scale of user-item interactions makes it challenging for an effective and efficient recommender system.
no code implementations • 13 May 2022 • Weiming Liu, Xiaolin Zheng, Mengling Hu, Chaochao Chen
Most of the existing CDR models assume that both the source and target domains share the same overlapped user set for knowledge transfer.
no code implementations • 10 Feb 2022 • Weiming Liu, Xiaolin Zheng, Mengling Hu, Chaochao Chen
In this paper, we focus on the Review-based Non-overlapped Recommendation (RNCDR) problem.
no code implementations • NeurIPS 2021 • Weiming Liu, Jiajie Su, Chaochao Chen, Xiaolin Zheng
To address this issue, we propose DisAlign, a cross-domain recommendation framework for the CDCSR problem, which utilizes both rating and auxiliary representations from the source domain to improve the recommendation performance of the target domain.
no code implementations • 11 Oct 2021 • Weiming Liu, Huacong Jiang, Bin Li, Houqiang Li
Follow-the-Regularized-Lead (FTRL) and Online Mirror Descent (OMD) are regret minimization algorithms for Online Convex Optimization (OCO), they are mathematically elegant but less practical in solving Extensive-Form Games (EFGs).
no code implementations • ICLR 2022 • Haobo Fu, Weiming Liu, Shuang Wu, Yijia Wang, Tao Yang, Kai Li, Junliang Xing, Bin Li, Bo Ma, Qiang Fu, Yang Wei
The deep policy gradient method has demonstrated promising results in many large-scale games, where the agent learns purely from its own experience.
no code implementations • 3 Dec 2020 • Weiming Liu, Bin Li, Julian Togelius
Experimental results show that Neural ReCFR-B is competitive with the state-of-the-art neural CFR algorithms at a much lower training cost.
no code implementations • 14 Feb 2019 • Xin Tong, Weiming Liu, Bin Li
In this paper, we propose to learn a prior for RHEA in an offline manner by training a value network and a policy network.
no code implementations • 3 Mar 2014 • Sanjiang Li, Zhiguo Long, Weiming Liu, Matt Duckham, Alan Both
In this paper, we show that this problem is in general intractable, but becomes tractable if $\Gamma$ is over a tractable subalgebra $\mathcal{S}$ of a qualitative calculus.