Ziqi Xu

2026

Energy-Efficient Training-Free Zero-Inflation Correction for Rainfall Forecasting with Time-Series Foundation Models.

Wentao Gao|Xiaojing Du|Xiongren Chen|Yifan Guo|Andres Mauricio Cifuentes Bernal|Renqiang Luo|Ziqi Xu

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.

STELA: Spatiotemporal Forecasting via Graph Learning and Entropy-Guided LLM Adaptation.

Tiantian Huang|Yue Li|Wei Shao|Ziqi Xu|Qipeng Song|Hui Li

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.

FairGE: Fairness-Aware Graph Encoding in Incomplete Social Networks.

Renqiang Luo|Huafei Huang|Tao Tang|Jing Ren|Ziqi Xu|Mingliang Hou|Enyan Dai|Feng Xia

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.

FairGU: Fairness-aware Graph Unlearning in Social Networks.

Renqiang Luo|Yongshuai Yang|Huafei Huang|Qing Qing|Mingliang Hou|Ziqi Xu|Yi Yu|Jingjing Zhou|Feng Xia

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.

Spiking Graph Predictive Coding for Reliable OOD Generalization.

Jing Ren|Jiapeng Du|Bowen Li|Ziqi Xu|Xin Zheng|Hong Jia|Suyu Ma|Xiwei Xu|Feng Xia

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.

When to Invoke: Refining LLM Fairness with Toxicity Assessment.

Jing Ren|Bowen Li|Ziqi Xu|Renqiang Luo|Shuo Yu|Xin Ye|Haytham Fayek|Xiaodong Li|Feng Xia

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.

When to Trust: A Causality-Aware Calibration Framework for Accurate Knowledge Graph Retrieval-Augmented Generation.

Jing Ren|Bowen Li|Ziqi Xu|Xikun Zhang|Haytham Fayek|Xiaodong Li

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.

MCLMR: A Model-Agnostic Causal Learning Framework for Multi-Behavior Recommendation.

Ranxu Zhang|Junjie Meng|Ying Sun|Ziqi Xu|Bing Yin|Hao Li|Yanyong Zhang|Chao Wang

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.

Harnessing LLM for Noise-Robust Cognitive Diagnosis in Web-Based Intelligent Education Systems.

Guixian Zhang|Guan Yuan|Ziqi Xu|Yanmei Zhang|Jing Ren|Zhenyun Deng|Debo Cheng

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

Revisiting Pre-processing Group Fairness: A Modular Benchmarking Framework.

Brodie Oldfield|Ziqi Xu|Sevvandi Kandanaarachchi

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

Temporal-Aware User Behaviour Simulation with Large Language Models for Recommender Systems.

Xinye Wanyan|Danula Hettiachchi|Chenglong Ma|Ziqi Xu|Jeffrey Chan

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

Unbiased Reasoning for Knowledge-Intensive Tasks in Large Language Models via Conditional Front-Door Adjustment.

Bo Zhao|Yinghao Zhang|Ziqi Xu|Yongli Ren|Xiuzhen Zhang|Renqiang Luo|Zaiwen Feng|Feng Xia

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

PUB: An LLM-Enhanced Personality-Driven User Behaviour Simulator for Recommender System Evaluation.

Chenglong Ma|Ziqi Xu|Yongli Ren|Danula Hettiachchi|Jeffrey Chan

Proceedings of the 48th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2025, Padua, Italy, July 13-18, 2025

Off-policy Evaluation for Multiple Actions in the Presence of Unobserved Confounders.

Haolin Wang|Lin Liu|Jiuyong Li|Ziqi Xu|Jixue Liu|Zehong Cao|Debo Cheng

Proceedings of the ACM on Web Conference 2025, WWW 2025, Sydney, NSW, Australia, 28 April 2025- 2 May 2025

Fairness Evaluation with Item Response Theory.

Ziqi Xu|Sevvandi Kandanaarachchi|Cheng Soon Ong|Eirini Ntoutsi

Proceedings of the ACM on Web Conference 2025, WWW 2025, Sydney, NSW, Australia, 28 April 2025- 2 May 2025

Towards Better Evaluation of Recommendation Algorithms with Bi-directional Item Response Theory.

Ziqi Xu|Chenglong Ma|Yongli Ren|Jeffrey Chan|Wei Shao|Feng Xia

Companion Proceedings of the ACM on Web Conference 2025, WWW 2025, Sydney, NSW, Australia, 28 April 2025 - 2 May 2025