Yongjun Xu

2026

Bootstrapping in the Loop: Multi-hop Question Answering via Alternating Decomposition and Retrieval.

Jiawei He|Zhanpeng Guan|Fuwei Zhang|Zhao Zhang|Yongjun Xu

Proceedings of the Nineteenth ACM International Conference on Web Search and Data Mining, WSDM 2026, Boise, ID, USA, February 22-26, 2026

Incentivizing Agentic Reasoning Capability with Outcome Supervision for Knowledge Base Question Answering.

Zhuo Chen|Fei Wang|Zixuan Li|Zhao Zhang|Weiwei Ding|Chuanguang Yang|Yongjun Xu|Xiaolong Jin

Proceedings of the ACM Web Conference 2026, WWW 2026, Dubai, United Arab Emirates, originally scheduled for April 13-17, 2026, rescheduled for June 29 - July 3, 2026.

2025

ID-centric Pre-training for Recommendation.

Yiqing Wu|Ruobing Xie|Zhao Zhang|Xu Zhang|Fuzhen Zhuang|Leyu Lin|Zhanhui Kang|Zhulin An|Yongjun Xu

ACM Transactions on Information Systems (TOIS) 2025 Volume 43 Issue 5

STA-GANN: A Valid and Generalizable Spatio-Temporal Kriging Approach.

Yujie Li|Zezhi Shao|Chengqing Yu|Tangwen Qian|Zhao Zhang|Yifan Du|Shaoming He|Fei Wang|Yongjun Xu

Proceedings of the 34th ACM International Conference on Information and Knowledge Management, CIKM 2025, Seoul, Republic of Korea, November 10-14, 2025

2024

Triple Dual Learning for Opinion-based Explainable Recommendation.

Yuting Zhang|Ying Sun|Fuzhen Zhuang|Yongchun Zhu|Zhulin An|Yongjun Xu

ACM Transactions on Information Systems (TOIS) 2024 Volume 42 Issue 3

2023

Topic-aware Intention Network for Explainable Recommendation with Knowledge Enhancement.

Qiming Li|Zhao Zhang|Fuzhen Zhuang|Yongjun Xu|Chao Li

ACM Transactions on Information Systems (TOIS) 2023 Volume 41 Issue 4

Knowledge Graph Error Detection with Hierarchical Path Structure.

Zhao Zhang|Fuwei Zhang|Fuzhen Zhuang|Yongjun Xu

Proceedings of the 32nd ACM International Conference on Information and Knowledge Management, CIKM 2023, Birmingham, United Kingdom, October 21-25, 2023

Clustering-property Matters: A Cluster-aware Network for Large Scale Multivariate Time Series Forecasting.

Yuan Wang|Zezhi Shao|Tao Sun|Chengqing Yu|Yongjun Xu|Fei Wang

Proceedings of the 32nd ACM International Conference on Information and Knowledge Management, CIKM 2023, Birmingham, United Kingdom, October 21-25, 2023

DSformer: A Double Sampling Transformer for Multivariate Time Series Long-term Prediction.

Chengqing Yu|Fei Wang|Zezhi Shao|Tao Sun|Lin Wu|Yongjun Xu

Proceedings of the 32nd ACM International Conference on Information and Knowledge Management, CIKM 2023, Birmingham, United Kingdom, October 21-25, 2023

Attacking Pre-trained Recommendation.

Yiqing Wu|Ruobing Xie|Zhao Zhang|Yongchun Zhu|Fuzhen Zhuang|Jie Zhou|Yongjun Xu|Qing He

Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2023, Taipei, Taiwan, July 23-27, 2023

Weighted Knowledge Graph Embedding.

Zhao Zhang|Zhanpeng Guan|Fuwei Zhang|Fuzhen Zhuang|Zhulin An|Fei Wang|Yongjun Xu

Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2023, Taipei, Taiwan, July 23-27, 2023

A Knowledge Enhanced Hierarchical Fusion Network for CTR Prediction under Account Search Scenario in WeChat.

Yuanzhou Yao|Zhao Zhang|Kaijia Yang|Huasheng Liang|Qiang Yan|Fuzhen Zhuang|Yongjun Xu|Boyu Diao|Chao Li

Companion Proceedings of the ACM Web Conference 2023, WWW 2023, Austin, TX, USA, 30 April 2023 - 4 May 2023

2022

Spatial-Temporal Identity: A Simple yet Effective Baseline for Multivariate Time Series Forecasting.

Zezhi Shao|Zhao Zhang|Fei Wang|Wei Wei|Yongjun Xu

Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022

Along the Time: Timeline-traced Embedding for Temporal Knowledge Graph Completion.

Fuwei Zhang|Zhao Zhang|Xiang Ao|Fuzhen Zhuang|Yongjun Xu|Qing He

Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022