•  24
    Centralized training with hybrid execution in multi-agent reinforcement learning via predictive observation imputation
    with Pedro P. Santos, Diogo S. Carvalho, Miguel Vasco, Alberto Sardinha, Pedro A. Santos, and Francisco S. Melo
    Artificial Intelligence 348 (C): 104404. 2025.
  •  77
    When a Robot Is Your Teammate
    with Filipa Correia and Francisco S. Melo
    Topics in Cognitive Science 16 (3): 527-553. 2024.
    Creating effective teamwork between humans and robots involves not only addressing their performance as a team but also sustaining the quality and sense of unity among teammates, also known as cohesion. This paper explores the research problem of: how can we endow robotic teammates with social capabilities to improve the cohesive alliance with humans? By defining the concept of a human–robot cohesive alliance in the light of the multidimensional construct of cohesion from the social sciences, we…Read more
  •  44
    “Guess what I'm doing”: Extending legibility to sequential decision tasks
    with Miguel Faria and Francisco S. Melo
    Artificial Intelligence 330 (C): 104107. 2024.
  •  47
    Definition, conceptualisation and measurement of trust
    with Martin Porcheron, Minha Lee, Birthe Nesset, Frode Guribye, Margot van der Goot, Roger K. Moore, Ricardo Usbeck, Catherine Pelachaud, Elayne Ruane, Björn Schuller, Guy Laban, Dimosthenis Kontogiorgos, Matthias Kraus, and Asbjørn Følstad
    Dagstuhl Reports 11 (8): 101-105. 2022.
    This report documents the program and the outcomes of Dagstuhl Seminar 21381 "Conversational Agent as Trustworthy Autonomous System ". First, we present the abstracts of the talks delivered by the Seminar’s attendees. Then we report on the origin and process of our six breakout groups. For each group, we describe its contributors, goals and key questions, key insights, and future research. The themes of the groups were derived from a pre-Seminar survey, which also led to a list of suggested read…Read more
  •  65
    Special section editorial
    with Selma Šabanović, Malte Jung, and Friederike Eyssel
    Interaction Studies 22 (1): 81-85. 2021.
  •  32
    Teaming up humans with autonomous synthetic characters
    with Rui Prada
    Artificial Intelligence 173 (1): 80-103. 2009.
  •  114
    The case of classroom robots: teachers’ deliberations on the ethical tensions
    with Sofia Serholt, Wolmet Barendregt, Asimina Vasalou, Patrícia Alves-Oliveira, Aidan Jones, and Sofia Petisca
    AI and Society 32 (4): 613-631. 2017.
    Robots are increasingly being studied for use in education. It is expected that robots will have the potential to facilitate children’s learning and function autonomously within real classrooms in the near future. Previous research has raised the importance of designing acceptable robots for different practices. In parallel, scholars have raised ethical concerns surrounding children interacting with robots. Drawing on a Responsible Research and Innovation perspective, our goal is to move away fr…Read more
  •  52
    Reply to Comments by Bainbridge, Gratch, and Nishida
    with Ruth Aylett
    Emotion Review 4 (3): 271-272. 2012.
    We respond to two themes in the comments by Bainbridge, Gratch, and Nishida: first, the importance of embodiment, and second the issue of what should be explicitly modelled as against what should be dynamically generated. Finally, we briefly respond to the ethical questions raised by Bainbridge.
  •  156
    Computational Modelling of Culture and Affect
    with Ruth Aylett
    Emotion Review 4 (3): 253-263. 2012.
    This article discusses work on implementing emotional and cultural models into synthetic graphical characters. An architecture, FAtiMA, implemented first in the antibullying application FearNot! and then extended as FAtiMA-PSI in the cultural-sensitivity application ORIENT, is discussed. We discuss the modelling relationships between culture, social interaction, and cognitive appraisal. Integrating a lower level homeostatically based model is also considered as a means of handling some of the li…Read more