All Stories

  1. A Reproducibility Study of LLM-Based Query Reformulation

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

    Amin Bigdeli

  2. EMPRA: Embedding Perturbation Rank Attack against Neural Ranking Models

    Article • ACM Transactions on Information Systems, May 2026, ACM (Association for Computing Machinery)

    Amin Bigdeli

  3. Learning Context-aware Term Importance for Query Performance Prediction

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

    Amin Bigdeli

  4. Query Performance Prediction Using Neural Query Space Proximity

    Article • ACM Transactions on Intelligent Systems and Technology, November 2025, ACM (Association for Computing Machinery)

    Amin Bigdeli, negar arabzadeh

  5. LLM-as-a-Judge in Entity Retrieval: Assessing Explicit and Implicit Relevance

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

    Seyed Mohammad Hosseini, Amin Bigdeli

  6. Datasets for Supervised Adversarial Attacks on Neural Rankers

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

    Amin Bigdeli