Stylianos Loukas Vasileiou

Research overview

My research develops AI systems that can reason about and adapt to their human counterparts. On the methods side, I draw from knowledge representation, reasoning, and neurosymbolic AI. These tools enable research across four interconnected themes: explainable decision-making, collaborative decision-making, user modeling, and what I like to call, human-AI psychology.



selected publications

  1. AAMAS
    Argumentative Human-AI Decision-Making: Toward AI Agents That Reason With Us, Not For Us
    Stylianos Loukas Vasileiou, Antonio Rago, Francesca Toni, and 1 more author
    In International Conference on Autonomous Agents and Multiagent Systems (AAMAS) BlueSky Track, 2026
  2. NeurIPS
    Model Reconciliation via Cost-Optimal Explanations in Probabilistic Logic Programming
    Yinxu Tang, Stylianos Loukas Vasileiou, Vincent Derkinderen, and 1 more author
    In Advances in Neural Information Processing Systems (NeurIPS), 2025
  3. JAIR
    On Generating Monolithic and Model Reconciling Explanations in Probabilistic Scenarios
    Stylianos Loukas Vasileiou, William Yeoh, Alessandro Previti, and 1 more author
    Journal of Artificial Intelligence Research (JAIR), 2025
  4. KR
    A Hybrid Logic–LLM System for Explainable Course Scheduling
    Stylianos Loukas Vasileiou and William Yeoh
    In International Conference on Principles of Knowledge Representation and Reasoning (KR), 2025
  5. AAAI
    Does Your AI Agent Get You? A Personalizable Framework for Approximating Human Models from Argumentation-based Dialogue Traces
    Yinxu Tang, Stylianos Loukas Vasileiou, and William Yeoh
    In Association for the Advancement of Artificial Intelligence (AAAI), 2025
  6. KR
    Dialectical Reconciliation via Structured Argumentative Dialogues
    Stylianos Loukas Vasileiou, Ashwin Kumar, William Yeoh, and 2 more authors
    In International Conference on Principles of Knowledge Representation and Reasoning (KR), 2024
  7. JAIR
    A Logic-based Explanation Generation Framework for Classical and Hybrid Planning Problems
    Stylianos Loukas Vasileiou, William Yeoh, Tran Cao Son, and 3 more authors
    Journal of Artificial Intelligence Research (JAIR), 2022
  8. AAAI
    On Exploiting Hitting Sets For Model Reconciliation
    Stylianos Loukas Vasileiou, Alessandro Previti, and William Yeoh
    In Association for the Advancement of Artificial Intelligence (AAAI), 2021