Recommender Systems · Multimodal AI · LLMs

Yuwen Liu 刘玉文

Lecturer

Shandong Computer Science Center (National Supercomputer Center in Jinan)
Qilu University of Technology (Shandong Academy of Sciences)
Jinan, Shandong, China

Portrait of Yuwen Liu
01

About Me

I am a Lecturer with the Shandong Computer Science Center (National Supercomputer Center in Jinan) at Qilu University of Technology (Shandong Academy of Sciences). I received my doctoral degree from China University of Petroleum (East China), advised by Prof. Lianyong Qi ↗. My research focuses on recommender systems, particularly sequential and point-of-interest recommendation, multimodal recommendation, large language models for recommendation, and trustworthy and explainable recommendation.

I was selected for the CAST Young Elite Scientists Sponsorship Program for Doctoral Students in 2024. My research has received the IEEE ATC 2022 Best Paper Award and ESI Highly Cited and Hot Paper recognition. My publications include first-author, co-first-author and collaborative work in NeurIPS, SIGIR, AAAI, WWW, IJCAI, ACM Multimedia and leading journals.

38Publication records
including accepted work
5ESI Highly Cited Papers
cumulative recognition
2ESI Hot Papers
cumulative recognition
18First / co-first-author
publication records

Publication list updated September 2026. ESI distinctions reflect recognition recorded through August 2026.

02

Research Interests

  • Recommender Systems
  • Multimodal Recommendation
  • Large Language Models
  • Sequential & POI Recommendation
  • Trustworthy & Explainable AI
  • Graph & Hypergraph Learning
  • Recommendation Unlearning
  • Continuous-Time Modeling
03

News

  • 2026.09AdaSRU accepted at NeurIPS 2026 as an Oral.
  • 2026.08Joined Qilu University of Technology (Shandong Academy of Sciences) as a Lecturer.
  • 2026New first-author papers at SIGIR (Oral) and AAAI.
  • 2024Selected for the CAST doctoral student sponsorship program.
04

Selected Publications

Google Scholar ↗

Eight representative papers spanning recent conference contributions and ESI-recognized research. Browse all publications using the filters below. Yuwen Liu is highlighted; * denotes equal contribution. ESI badges indicate previously received recognition.

38 publications · 8 selected2020–2026
  1. 01
    2026OralAccepted

    AdaSRU: Adaptive Source-Free Recommendation Unlearning via Gradient-Constrained Optimization

    Xiaoran Zhao, Weiming Liu, Lianyong Qi, Weiyi Zhong, Yuwen Liu, Xiaolong Xu, Haolong Xiang, Qiang Ni, Xuyun Zhang, Wanchun Dou, Xiaokang Zhou

    NeurIPS · 2026

  2. 02
    2026Oral

    Fourier Kolmogorov-Arnold Network and Hypergraph Enhanced Contrastive Learning for Recommendation

    Yuwen Liu, Lianyong Qi, Xucheng Zhou, Xingyuan Mao, Weiming Liu, Shuang Wang, Xiaolong Xu, Haolong Xiang, Xuyun Zhang, Wanchun Dou

    ACM SIGIR, pp. 1198–1208 · 2026

    First / co-first authorScholar search ↗
  3. 03
    2026

    Hyperbolic-Enhanced Mixture-of-Experts Mamba for Sequential Recommendation

    Yuwen Liu, Lianyong Qi, Xingyuan Mao, Weiming Liu, Xuhui Fan, Qiang Ni, Xuyun Zhang, Yang Zhang, Yuan Tian, Amin Beheshti

    AAAI, pp. 15403–15411 · 2026

    First / co-first authorPublisher ↗
  4. 04
    2026

    Optimizing Sequence-Based POI Recommendations: From Sequence Adjustment to Transformer-XL Integration

    Yuwen Liu, Te Song, Yijie Yang, Dejiang Zhang, Jianye Xie, Lianyong Qi, Shigen Shen

    Tsinghua Science and Technology, 31(5): 2323–2336 · 2026

    First / co-first authorScholar search ↗
  5. 05
    2025

    Hyperbolic Variational Graph Auto-Encoder for Next POI Recommendation

    Yuwen Liu, Lianyong Qi, Xingyuan Mao, Weiming Liu, Fan Wang, Xiaolong Xu, Xuyun Zhang, Wanchun Dou, Xiaokang Zhou, Amin Beheshti

    The Web Conference (WWW), pp. 3267–3275 · 2025

    First / co-first authorScholar search ↗
  6. 06
    2025Oral

    Variational Graph Auto-Encoder Driven Graph Enhancement for Sequential Recommendation

    Yuwen Liu, Lianyong Qi, Xingyuan Mao, Weiming Liu, Shichao Pei, Fan Wang, Xuyun Zhang, Amin Beheshti, Xiaokang Zhou

    IJCAI, pp. 3144–3152 · 2025

    First / co-first authorScholar search ↗
  7. 07
    2025

    PerFedKG: Two-Stage Information-Loop Federated Knowledge Graph for Personalized Privacy-Preserving Recommendation Systems

    Fan Wang, Xuyun Zhang, Weiming Liu, Li Li, Yuwen Liu, Zhongyuan Zhang, Guanfeng Liu, Shengye Pang, Xiaolong Xu, Lianyong Qi

    Science China Information Sciences, 68(4) · 2025

  8. 08
    2025

    DR-VAE: Debiased and Representation-Enhanced Variational Autoencoder for Collaborative Recommendation

    Fan Wang, Chaochao Chen, Weiming Liu, Minye Lei, Jintao Chen, Yuwen Liu, Xiaolin Zheng, Jianwei Yin

    AAAI, pp. 12703–12711 · 2025

  9. 09
    2025

    Joint Test-Time Adaptation with Refined Pseudo-Labels and Latent Score Matching

    Yijie Yang, Lianyong Qi, Weiming Liu, Fan Wang, Jing Du, Yuwen Liu, Xiaolong Xu, Qiang Ni, Wanchun Dou, Xiaokang Zhou

    ACM Multimedia, pp. 2556–2565 · 2025

  10. 10
    2025

    HRCformer: Hierarchical Recursive Convolution-Transformer with Multi-Scale Adaptive Recalibration for Time Series Forecasting

    Dejiang Zhang, Lianyong Qi, Yuwen Liu, Xucheng Zhou, Jianye Xie, Haolong Xiang, Xiaolong Xu, Xuyun Zhang, Yang Cao, Yang Zhang

    ACM CIKM, pp. 4076–4085 · 2025

  11. 11
    2025

    Secure Collaborative Learning for Self-Adaptive Systems on Connected Autonomous Vehicles

    Xiaotong Wu, Yuwen Liu, Xiaoxiao Chi, Rong Jiang, Xiaokang Zhou, Wajid Rafique, Maqbool Khan

    ACM Transactions on Autonomous and Adaptive Systems, 20(3): 20:1–20:30 · 2025

  12. 12
    2025

    Large Language Models for Recommender Systems: A Problem-Driven Survey

    Ziyuan Guan, Weiyi Zhong, Weiming Liu, Yuwen Liu, Huaizhen Kou, Xiaoxiao Chi, Xiaoran Zhao

    Tsinghua Science and Technology, online publication · 2025

  13. 13
    2025

    Social Media-Driven User Community Finding with Privacy Protection

    Jianye Xie, Xudong Wang, Yuwen Liu, Wenwen Gong, Chao Yan, Wajid Rafique, Maqbool Khan, Arif Ali Khan

    Tsinghua Science and Technology, 30(4): 1782–1792 · 2025

  14. 14
    2024ESI Highly CitedESI Hot Paper

    Privacy-Preserving Point-of-Interest Recommendation Based on Simplified Graph Convolutional Network for Geological Traveling

    Yuwen Liu, Xiaokang Zhou, Huaizhen Kou, Yawu Zhao, Xiaolong Xu, Xuyun Zhang, Lianyong Qi

    ACM Transactions on Intelligent Systems and Technology, 15(4): 76:1–76:17 · 2024

    First / co-first authorScholar search ↗
  15. 15
    2024Co-first Author

    Cluster-Driven Personalized Federated Recommendation with Interest-Aware Graph Convolution Network for Multimedia

    Xingyuan Mao*, Yuwen Liu*, Lianyong Qi, Li Duan, Xiaolong Xu, Xuyun Zhang, Wanchun Dou, Amin Beheshti, Xiaokang Zhou

    ACM Multimedia, pp. 5614–5622 · 2024

    First / co-first authorScholar search ↗
  16. 16
    2024Short Paper

    GraphSAGE-Based POI Recommendation via Continuous-Time Modeling

    Yuwen Liu, Lianyong Qi, Weiming Liu, Xiaolong Xu, Xuyun Zhang, Wanchun Dou

    The Web Conference (WWW), Companion Volume, pp. 585–588 · 2024

    First / co-first authorScholar search ↗
  17. 17
    2024Oral

    Counterfactual User Sequence Synthesis Augmented with Continuous-Time Dynamic Preference Modeling for Sequential POI Recommendation

    Lianyong Qi, Yuwen Liu, Weiming Liu, Shichao Pei, Xiaolong Xu, Xuyun Zhang, Yingjie Wang, Wanchun Dou

    IJCAI, pp. 2306–2314 · 2024

    Second author · advisor-ledPublisher ↗
  18. 18
    2024

    Lithological Facies Classification Using Attention-Based Gated Recurrent Unit

    Yuwen Liu, Yulan Zhang, Xingyuan Mao, Xucheng Zhou, Jingwen Chang, Wenwei Wang, Pan Wang, Lianyong Qi

    Tsinghua Science and Technology, 29(4): 1206–1218 · 2024

    First / co-first authorScholar search ↗
  19. 19
    2024Co-first Author

    GLFNet: Global and Local Frequency-Domain Network for Long-Term Time Series Forecasting

    Xucheng Zhou*, Yuwen Liu*, Lianyong Qi, Xiaolong Xu, Wanchun Dou, Xuyun Zhang, Yang Zhang

    ACM CIKM, pp. 3527–3536 · 2024

    First / co-first authorScholar search ↗
  20. 20
    2024

    Optimizing CNN Inference Speed over Big Social Data through Efficient Model Parallelism for Sustainable Web of Things

    Yuhao Hu, Xiaolong Xu, Muhammad Bilal, Weiyi Zhong, Yuwen Liu, Huaizhen Kou, Lingzhen Kong

    Journal of Parallel and Distributed Computing, 192: 104927 · 2024

  21. 21
    2024

    Enhancing Temporal Knowledge Graph Alignment in News Domain with Box Embedding

    Bingchen Liu, Shihao Hou, Weiyi Zhong, Xiaoran Zhao, Yuwen Liu, Yihong Yang, Shijun Liu, Li Pan

    IEEE Transactions on Computational Social Systems, 11(4): 4909–4919 · 2024

  22. 22
    2023ESI Highly Cited

    Interaction-Enhanced and Time-Aware Graph Convolutional Network for Successive Point-of-Interest Recommendation in Traveling Enterprises

    Yuwen Liu, Huiping Wu, Khosro Rezaee, Mohammad R. Khosravi, Osamah Ibrahim Khalaf, Arif Ali Khan, Dharavath Ramesh, Lianyong Qi

    IEEE Transactions on Industrial Informatics, 19(1): 635–643 · 2023

    First / co-first authorScholar search ↗
  23. 23
    2023

    A Label Noise Filtering and Label Missing Supplement Framework Based on Game Theory

    Yuwen Liu, Rongju Yao, Song Jia, Fan Wang, Ruili Wang, Rui Ma, Lianyong Qi

    Digital Communications and Networks, 9(4): 887–895 · 2023

    First / co-first authorScholar search ↗
  24. 24
    2023

    Privacy-Aware Traffic Flow Prediction Based on Multi-Party Sensor Data with Zero Trust in Smart City

    Fan Wang, Guangshun Li, Yilei Wang, Wajid Rafique, Mohammad R. Khosravi, Guanfeng Liu, Yuwen Liu, Lianyong Qi

    ACM Transactions on Internet Technology, 23(3): 44:1–44:19 · 2023

  25. 25
    2023

    A Novel Short-Term Traffic Prediction Model Based on SVD and ARIMA with Blockchain in Industrial Internet of Things

    Ying Miao, Xiuhong Bai, Yuxuan Cao, Yuwen Liu, Fei Dai, Fan Wang, Lianyong Qi, Wanchun Dou

    IEEE Internet of Things Journal, 10(24): 21217–21226 · 2023

  26. 26
    2023

    An Accuracy-Enhanced Group Recommendation Approach Based on DEMATEL

    Yuqing Wang, Lianyong Qi, Ruihan Dou, Shigen Shen, Linlin Hou, Yuwen Liu, Yihong Yang, Lingzhen Kong

    Pattern Recognition Letters, 167: 171–180 · 2023

  27. 27
    2022ESI Highly CitedESI Hot Paper

    A Long Short-Term Memory-Based Model for Greenhouse Climate Prediction

    Yuwen Liu, Dejuan Li, Shaohua Wan, Fan Wang, Wanchun Dou, Xiaolong Xu, Shancang Li, Rui Ma, Lianyong Qi

    International Journal of Intelligent Systems, 37(1): 135–151 · 2022

    First / co-first authorScholar search ↗
  28. 28
    2022ESI Highly Cited

    Bidirectional GRU Networks-Based Next POI Category Prediction for Healthcare

    Yuwen Liu, Zuolong Song, Xiaolong Xu, Wajid Rafique, Xuyun Zhang, Jun Shen, Mohammad R. Khosravi, Lianyong Qi

    International Journal of Intelligent Systems, 37(7): 4020–4040 · 2022

    First / co-first authorScholar search ↗
  29. 29
    2022Best Paper Award

    Vehicle Check-In Data-Driven POI Recommendation Based on Improved SVD and Graph Convolutional Network

    Yuwen Liu, Jie Zhang, Ruihan Dou, Xiaokang Zhou, Xiaolong Xu, Shoujin Wang, Lianyong Qi

    IEEE ATC, pp. 2040–2047 · 2022

    First / co-first authorScholar search ↗
  30. 30
    2022

    Privacy-Aware Point-of-Interest Category Recommendation in Internet of Things

    Lianyong Qi, Yuwen Liu, Yulan Zhang, Xiaolong Xu, Muhammad Bilal, Houbing Song

    IEEE Internet of Things Journal, 9(21): 21398–21408 · 2022

    Second author · advisor-ledScholar search ↗
  31. 31
    2022

    A Locality-Sensitive Hashing-Based Automatic Group Identification Approach in Group Recommendation

    Yuqing Wang, Yuwen Liu, Yihong Yang, Lingzhen Kong, Ying Miao

    IEEE DASC/PiCom/CBDCom/CyberSciTech · 2022

  32. 32
    2022

    Diverse Web APIs Recommendation with Privacy-Preservation for Mashup Development

    Shengqi Wu, Lianyong Qi, Yuwen Liu, Yihong Yang, Ying Miao, Fei Dai

    International Conference on Machine Learning for Cyber Security · 2022

  33. 33
    2021ESI Highly Cited

    An Attention-Based Category-Aware GRU Model for the Next POI Recommendation

    Yuwen Liu, Aixiang Pei, Fan Wang, Yihong Yang, Xuyun Zhang, Hao Wang, Hongning Dai, Lianyong Qi, Rui Ma

    International Journal of Intelligent Systems, 36(7): 3174–3189 · 2021

    First / co-first authorScholar search ↗
  34. 34
    2021

    A Privacy-Preserving Anime Recommendation Method on Distributed Platform

    Yuwen Liu, Ying Miao, Shengqi Wu

    International Conference on Data Mining and Big Data Analytics, pp. 194–204 · 2021

    First / co-first authorScholar search ↗
  35. 35
    2021

    Prediction of Oil Temperature for Transformers Using Gated Recurrent Unit

    Yuwen Liu, Yihong Yang, Yuqing Wang

    International Conference on Data Mining and Big Data Analytics, pp. 411–421 · 2021

    First / co-first authorScholar search ↗
  36. 36
    2021

    A Novel Similar Player Clustering Method with Privacy Preservation for Sport Performance Evaluation in Cloud

    Rui Ma, Jianqiang Li, Baohui Xing, Yuanyuan Zhao, Yuwen Liu, Chao Yan, Hang Yin

    IEEE Access, 9: 147791–147802 · 2021

  37. 37
    2021

    Blockchain-Enabled HMM Model for Sports Performance Prediction

    Ping Cao, Guoqing Zhu, Qingguo Zhang, Fan Wang, Yuwen Liu, Ruichao Mo

    IEEE Access, 9: 40231–40241 · 2021

  38. 38
    2020

    Trust-Based Missing Link Prediction in Signed Social Networks with Privacy Preservation

    Huaizhen Kou, Fan Wang, Chao Lv, Zhaoan Dong, Wanli Huang, Hao Wang, Yuwen Liu

    Wireless Communications and Mobile Computing, 2020: 6662047 · 2020

05

Honors & Awards

06

Selected Collaborators

Researchers with whom I have coauthored publications.

07

Academic Service

More details ↗

Editorial Service

Editorial Review Board Member
International Journal of Information Technologies and Systems Approach (IJITSA)

Professional Service

Academic Assistant, Chinese Institute of Electronics.

Program Committees & Conference Reviewing

WWW, AAAI, IJCAI, SIGIR, ACM Multimedia, ECAI, ICWS and CIKM.

Journal Reviewing

IEEE TKDE, IEEE TNNLS, Knowledge-Based Systems, IEEE TCE, ACM TOSN and ACM TAAS.