All Stories

  1. The 1st EReL@MIR Workshop on Efficient Representation Learning for Multimodal Information Retrieval

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

    Junchen Fu, Alexandros Karatzoglou

  2. Large Language Model driven Policy Exploration for Recommender Systems

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

    Alexandros Karatzoglou

  3. Sparks of Surprise: Multi-objective Recommendations with Hierarchical Decision Transformers for Diversity, Novelty, and Serendipity

    Article • October 2024, ACM (Association for Computing Machinery)

    Alexandros Karatzoglou

  4. Reinforcement Learning-based Recommender Systems with Large Language Models for State Reward and Action Modeling

    Article • July 2024, ACM (Association for Computing Machinery)

    Alexandros Karatzoglou

  5. IISAN: Efficiently Adapting Multimodal Representation for Sequential Recommendation with Decoupled PEFT

    Article • July 2024, ACM (Association for Computing Machinery)

    Alexandros Karatzoglou, Junchen Fu

  6. Enhancing Top-N Item Recommendations by Peer Collaboration

    Article • July 2022, ACM (Association for Computing Machinery)

    Alexandros Karatzoglou, Xiaoyan Zhao

  7. Rethinking Reinforcement Learning for Recommendation

    Article • July 2022, ACM (Association for Computing Machinery)

    Alexandros Karatzoglou

  8. Disentangling Preference Representations for Recommendation Critiquing with ß-VAE

    Article • October 2021, ACM (Association for Computing Machinery)

    Alexandros Karatzoglou

  9. One Person, One Model, One World

    Article • July 2021, ACM (Association for Computing Machinery)

    Alexandros Karatzoglou

  10. Self-Supervised Reinforcement Learning for Recommender Systems

    Article • July 2020, ACM (Association for Computing Machinery)

    Alexandros Karatzoglou

  11. Parameter-Efficient Transfer from Sequential Behaviors for User Modeling and Recommendation

    Article • July 2020, ACM (Association for Computing Machinery)

    Alexandros Karatzoglou

  12. Deep Learning for Recommender Systems

    Article • August 2017, ACM (Association for Computing Machinery)

    Alexandros Karatzoglou

  13. Question recommendation for collaborative question answering systems with RankSLDA

    Article • January 2014, ACM (Association for Computing Machinery)

    Alexandros Karatzoglou

  14. Collaborative temporal order modeling

    Article • January 2011, ACM (Association for Computing Machinery)

    Alexandros Karatzoglou

  15. Collaborative Preference Learning

    Article • January 2010, Springer Science + Business Media

    Alexandros Karatzoglou