All Stories

  1. Self-supervised Causal Effects Estimation

    Article • ACM Transactions on Intelligent Systems and Technology, August 2026, ACM (Association for Computing Machinery)

    ZIQI XU

  2. Causal Abstraction Learning for Multi-Modal Grounded Planning

    Article • August 2026, ACM (Association for Computing Machinery)

    ZIQI XU

  3. HiBrain: Hierarchical Prototype Learning on Multimodal Brain Graphs for Stage-Aware Biomarker Discovery

    Article • August 2026, ACM (Association for Computing Machinery)

    Prof. Xiangjie Kong, ZIQI XU, Xikun ZHANG

  4. ExODRec: An Explainable Framework for Outlier Detection Model Recommendation

    Article • July 2026, ACM (Association for Computing Machinery)

    ZIQI XU

  5. Verifiable User Simulation for Search and Recommendation Systems

    Article • July 2026, ACM (Association for Computing Machinery)

    Chenglong Ma, ZIQI XU, Yongli Ren

  6. Task-Aware Automated User Profile Generation for Recommendation Simulation Using Large Language Models

    Article • July 2026, ACM (Association for Computing Machinery)

    Chenglong Ma, ZIQI XU

  7. Mitigating Bias in Large Language Model Based Question Answering through Causal Front Door Prompting

    Article • July 2026, ACM (Association for Computing Machinery)

    ZIQI XU, Chenglong Ma, Yongli Ren, Jie Li, Mark Sanderson

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

    Article • April 2026, ACM (Association for Computing Machinery)

    Renqiang Luo, ZIQI XU

  9. When to Invoke: Refining LLM Fairness with Toxicity Assessment

    Article • April 2026, ACM (Association for Computing Machinery)

    ZIQI XU, Renqiang Luo, Bowen Li

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

    Article • April 2026, ACM (Association for Computing Machinery)

    Xikun ZHANG, ZIQI XU, Bowen Li

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

    Article • April 2026, ACM (Association for Computing Machinery)

    Renqiang Luo, ZIQI XU, Huafei Huang

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

    Article • April 2026, ACM (Association for Computing Machinery)

    ZIQI XU

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

    Article • April 2026, ACM (Association for Computing Machinery)

    ZIQI XU

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

    Article • November 2025, ACM (Association for Computing Machinery)

    Renqiang Luo, Yongli Ren, ZIQI XU

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

    Article • November 2025, ACM (Association for Computing Machinery)

    Sevvandi Kandanaarachchi, ZIQI XU

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

    Article • November 2025, ACM (Association for Computing Machinery)

    Chenglong Ma, ZIQI XU

  17. FairDRL-ST: Disentangled Representation Learning for Fair Spatio-Temporal Mobility Prediction

    Article • November 2025, ACM (Association for Computing Machinery)

    ZIQI XU

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

    Article • July 2025, ACM (Association for Computing Machinery)

    ZIQI XU, Yongli Ren, Chenglong Ma

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

    Article • May 2025, ACM (Association for Computing Machinery)

    ZIQI XU, Yongli Ren, Chenglong Ma

  20. Testing fairness measures in machine learning using an approach for designing tests in education.

    Article • April 2025, ACM (Association for Computing Machinery)

    Prof. Dr. Eirini Ntoutsi, ZIQI XU, Sevvandi Kandanaarachchi, Cheng Soon Ong

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

    Article • April 2025, ACM (Association for Computing Machinery)

    ZIQI XU