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Ana Paiva Email icon Webpage icon

Degree :
PhD
Institution :
INESC-ID
Address :
IST Tagusparque, Av. Prof. Dr. Cavaco Silva, 2744-016 Porto Salvo, Portugal
Office :
2N7.23
Telephone :
(+351) 21 423 32 23

Interests

Ana Maria Paiva is an Associate Professor in the Department of Computer Science and Engineering (Departamento de Engenharia Informática) of Instituto Superior Técnico from the Technical University of Lisbon ( Universidade Ténica de Lisboa). She is also the group leader of GAIPS, (Grupo de Agentes Inteligentes e Personagens Sintéticas, a research group on agents and synthetic characters at  INESC-ID.  Her main scientific interests lay in the area of Autonomous Agents, Embodied Conversational Agents and Robots and Multiagent Simulation Systems. Prof. Ana Paiva has been researching in the area of artificial intelligence for the past twenty years, having also taught at IST during that period


Current Projects
GaLa Co-Writer EMOTE PArCEIRO


Publications

  Child-Robot Interaction: Social Bonding, Learning and Ethics
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Wolmet Barendregt and Ana Paiva and Arvid Kappas and Asimina Vasalou and Carl Heath and Sofia Serholt and Patrícia Alves-Oliveira, Workshop proceedings of Interaction Design and Children Conference IDC´ 14.

Free Your Brain A Working Memory Training Game
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Gonçalo Pereira and Manuel Ninaus and Rui Prada and Guilherme Wood and Christa Neuper and Ana Paiva, Bucharest, Romania, July, 2014

"How do you imagine robots?" Children’s expectations about robots
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Patrícia Alves-Oliveira and Sofia Petisca and Srinivasan Janarthanam and Helen Hastie and Ana Paiva

Developing Interactive Embodied Characters Using the Thalamus Framework: A Collaborative Approach
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Tiago Ribeiro and Eugenio Tullio and Lee J Corrigan and Aidan Jones and Fotios Papadopoulos and Ruth Aylett and Ginevra Castellano and Ana Paiva, 2014

Disaster Prevention Social Awareness The Stop Disasters! Case Study
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Gonçalo Pereira and Rui Prada and Ana Paiva, 2014 6th International Conference on Games and Virtual Worlds for Serious Applications (VS-Games), pg. 115-122, IEEE, Msida, Malta, September, 2014

Emergence of emotional appraisal signals in reinforcement learning agents
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Pedro Sequeira and Francisco S. Melo and Ana Paiva, Autonomous Agents and Multi-Agent Systems, April, 2014

From Thalamus to Skene: High-level behaviour planning and managing for mixed-reality characters
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Tiago Ribeiro and Eugenio Tullio and Patricia Alves-Oliveira and Ana Paiva, 2014

I'm the mayor: a robot tutor in enercities-2
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Tiago Ribeiro and Amol Deshmukh and Ruth Aylett and Ana Paiva, 2014

Learning by Appraising: An Emotion-based Approach for Intrinsic Reward Design
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Pedro Sequeira and Francisco S. Melo and Ana Paiva, Adaptive Behavior, Vol. 22, No. 5, pg. 330-349, October, 2014

Meet me halfway: Eye Behaviour as an expression of Robot Language
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Patrícia Alves-Oliveira and Eugenio Di Tullio and Tiago Ribeiro and Ana Paiva

Migration Between Two Embodiments of an Artificial Pet
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Paulo Gomes and Alberto Sardinha and Elena Márquez Segura and Henriette Cramer and Ana Paiva, International Journal of Humanoid Robotics, Vol. 11, No. 1, pg. 1450001 (32 pages), 2014

Non-Player Characters and Artificial Intelligence
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Gonçalo Pereira and António Brisson and João Dias and André Carvalho and Joana Dimas and Samuel Mascarenhas and Joana Campos and Marco Vala and Iolanda Leite and Carlos Martinho and Rui Prada and Ana Paiva, Psychology, Pedagogy, and Assessment in Serious Games, pg. 127-152, IGI GLobal, 2014

The Influence of Social Display in Competitive Multiagent Learning
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Pedro Sequeira and Francisco S Melo and Ana Paiva, 4th International Conference on Development and Learning and on Epigenetic Robotics, pg. 64-69, IEEE, Genoa, Italy, October, 2014

Towards Dialogue Dimensions for a Robotic Tutor in Collaborative Learning Scenarios
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Patrícia Alves-Oliveira and Srinivasan Janartham and Ana Candeias and Amol Deshmukh and Tiago Ribeiro and Helen Hastie and Ana Paiva and Ruth Aylett, IEEE

  An Agent Model for the Appraisal of Normative Events Based in In-Group and Out-Group Relations
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Nuno Ferreira and Samuel Mascarenhas and Ana Paiva and Gennaro Di Tosto and Frank Dignum and John Mc Breen and Nick Degens and Gert Hofstede and Giulia Andrighetto and Rosaria Conte, AAAI-13 Twenty-Seventh AAAI Conference on Artificial Intelligence, July, 2013

An Associative State-Space Metric for Learning in Factored MDPs
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Pedro Sequeira and Francisco S. Melo and Ana Paiva, Proceedings of the 16th Portuguese Conference on Artificial Intelligence, pg. 163-174, Springer-Verlag, Berlin Heidelberg , September, 2013

Can I ask you a favour? A Relational Model of Socio-Cultural Behaviour (Extended Abstract)
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Samuel Mascarenhas and Rui Prada and Ana Paiva and Nick Degens and Gert Jan Hofstede, Proceedings of the International Conference on Autonomous Agents and Multiagent Systems (AAMAS). IFAAMAS/ACM DL, 2013

Censys: A Model for Distributed Embodied Cognition
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Tiago Ribeiro and Marco Vala and Ana Paiva, Intelligent Virtual Agents, pg. 58-67, Springer Berlin / Heidelberg, September, 2013

Conflict Inside Out: A theoretical approach to conflict from an agent point of view
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Joana Campos and Carlos Martinho and Ana Paiva, in Proceedings of the Twelfth International Conference on Autonomous Agents and Multiagent Systems, 2013

Emergence of Emotion-Like Signals in Learning Agents
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Pedro Sequeira and Francisco S. Melo and Ana Paiva

I Want to Be Your Friend: Establishing Relations with Emotionally Intelligent Agents
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João Dias and Ana Paiva, Proceedings of the International Conference on Autonomous Agents and Multiagent Systems (AAMAS) , IFAAMAS/ACM DL, May, 2013

Multimodal Affect Modelling and Recognition for Empathic Robotic Companions
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Ginevra Castellano and Iolanda Leite and André Pereira and Carlos Martinho and Ana Paiva and Peter W. Mcowan, International Journal of Humanoid Robotics, Vol. 1, 2013

My Dream Theatre: Putting Conflict on Center Stage
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Joana Campos and Carlos Martinho and Gordon Ingram and Asimina Vasalou and Ana Paiva, 8th International Conference on the Foundations of Digital Games, 2013

Nutty tracks: symbolic animation pipeline for expressive robotics
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Tiago Ribeiro and Doug Dooley and Ana Paiva, ACM SIGGRAPH 2013 Posters, pg. 8:1--8:1, ACM, New York, NY, USA, 2013

Planning culturally-appropriate conversations using adjacency pairs
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Samuel Mascarenhas and Rui Prada and Ana Paiva

Sensors in the wild: exploring electrodermal activity in child-robot interaction
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Iolanda Leite and Rui Henriques and Carlos Martinho and Ana Paiva, Proceedings of the 8th ACM/IEEE international conference on Human-robot interaction, pg. 41--48, ACM/IEEE Press, March, 2013

Social importance dynamics: A model for culturally-adaptive agents
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Samuel Mascarenhas and Rui Prada and Ana Paiva

Social Robots for Long-Term Interaction: A Survey
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Iolanda Leite and Carlos Martinho and Ana Paiva, International Journal of Social Robotics, pg. 1--18, January, 2013

The Great Deceivers: Virtual Agents and Believable Lies
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João Dias and Ruth Aylett and Ana Paiva, CogSci 2013- The annual meeting of the Cognitive Science Society, pg. 2189-2194, August, 2013

The influence of empathy in human-robot relations
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Iolanda Leite and André Pereira and Samuel Mascarenhas and Carlos Martinho and Rui Prada and Ana Paiva, International Journal of Human-Computer Studies, Vol. 71, No. 3, pg. 250 - 260, 2013

Towards agents with human-like decisions under uncertainty
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Nuno Marques and Francisco S. Melo and Samuel Mascarenhas and João Dias and Rui Prada and Ana Paiva, Cogsci 2013- The annual Meeting of the Cognitive Science Society, 2013

Towards empathic artificial tutors
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Amol Deshmukh and Ginevra Castellano and Arvid Kappas and Wolmet Barendregt and Fernando Nabais and Ana Paiva and Tiago Ribeiro and Iolanda Leite and Ruth Aylett, Proceedings of the 8th ACM/IEEE international conference on Human-robot interaction, pg. 113--114, ACM/IEEE Press, March, 2013

Traveller: An Intercultural Training System with Intelligent Agents (Demonstration)
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Samuel Mascarenhas and André Silva and Ana Paiva and Ruth Aylett and Felix Kistler and Elisabeth André and Nick Degens and Gert Jan Hofstede, Proceedings of the International Conference on Autonomous Agents and Multiagent Systems., IFAAMAS/ACM DL, 2013

  A model for embodied cognition in autonomous agents
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Marco Vala and Tiago Ribeiro and Ana Paiva, , pg. 505--507, 2012

A Model for Social Regulation of User-Agent Relationships
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Sandra Gama and Gabriel Barata and Daniel Gonçalves and Rui Prada and Ana Paiva, Intelligent Virtual Agents IVA'2012, pg. 319-326, Springer Berlin / Heidelberg, Eindhoven, The Netherlands, September, 2012

A Serious Game to Teach Conflict Resolution to Children
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Joana Campos and Henrique Campos and Carlos Martinho and Ana Paiva, 11th International Conference in Intelligent Tutoring Systems, Springer Berlin / Heidelberg, June, 2012

Affective teaching: learning more effectively from empathic robots
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Ginevra Castellano and Iolanda Leite and Ana Paiva and Peter W. McOwan, Awareness magazine: Self-Awareness in Autonomic Systems, Vol. Interactive Robotics, pg. doi: 10.2417/3201112.003948, January, 2012

Artificial Intelligence and Personalization Opportunities for Serious Games
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António Brisson and Gonçalo Pereira and Rui Prada and Ana Paiva and S. Louchart and N. Suttie and T. Lim and R. Lopes and R. Bidarra and F. Bellotti and M. Kravcik and M. Oliveira, Eighth Artificial Intelligence and Interactive Digital Entertainment Conference (AIIDE 2012), pg. 51-57, AAAI Press, Palo Alto, California 94303 USA, October, 2012

Associative metric for learning in factored MDPs based on classical conditioning
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Pedro Sequeira and Francisco S. Melo and Ana Paiva

Creating Adaptive Affective NPCs
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Mei Lim and João Dias and Ruth Aylett and Ana Paiva, International Journal of Autonomous Agents and Multi-Agent Systems, Vol. 24, No. 2, pg. 287-311, 2012

Generating Norm-Related Emotions in Virtual Agents
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Nuno Ferreira and Samuel Mascarenhas and Ana Paiva and Frank Dignum and John Mc Breen and Nick Degens and Gert Jan Hofstede, Intelligent Virtual Agents IVA'2012, pg. 97-104, Springer Berlin / Heidelberg, Eindhoven, The Netherlands, September, 2012

Integrating User Research into a Serious Game about Conflict Resolution
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Gordon Ingram and Joana Campos and Rilla Khaled and Asimina Vasalou and Ana Paiva, eChallenges e-2012 Conference Proceedings, IIMC International Information Management Corporation, 2012

Laugh To Me! Implementing Emotional Escalation on Autonomous Agents for Creating a Comic Sketch
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André Carvalho and António Brisson and Ana Paiva, Interactive Storytelling, pg. 162--173, 2012

Learning by Appraising: An emotion-based approach for intrinsic reward design
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Pedro Sequeira and Francisco S. Melo and Ana Paiva

Modelling Empathic Behaviour in a Robotic Game Companion for Children: an Ethnographic Study in Real-World Settings
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Iolanda Leite and Ginevra Castellano and André Pereira and Carlos Martinho and Ana Paiva, Proc. of ACM/IEEE International Conference on Human-Robot Interaction, Boston, USA, pg. to appear, ACM, March, 2012

Modelling Empathy in Social Robotic Companions
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Iolanda Leite and André Pereira and Ginevra Castellano and Samuel Mascarenhas and Carlos Martinho and Ana Paiva, Advances in User Modeling: UMAP 2011 Workshops (Revised Selected Papers), pg. 135--147, Springer, Heidelberg, January, 2012

Revive! Reactions to Migration between Different Embodiments when Playing with Robotic Pets
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Elena Márquez Segura and Henriette Cramer and Paulo F. Gomes and Stina Nylander and Ana Paiva, 11th International Conference on Interaction Design and Children, 06/2012, 2012

Serious Games for Personal and Social Learning & Ethics: Status and Trends
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Gonçalo Pereira and António Brisson and Rui Prada and Ana Paiva and Francesco Bellotti and Milos Kravcik and Ralf Klamma, 4th International Conference on Games and Virtual Worlds for Serious Applications(VS-GAMES’12) , pg. 53 - 65, Procedia Computer Science, Genoa, Italy, October, 2012

Socially Present Board Game Opponents
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André Pereira and Rui Prada and Ana Paiva, Advances in Computer Entertainment, pg. 101-116, 2012

Thalamus: Closing the Mind-Body Loop in Interactive Embodied Characters
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Tiago Ribeiro and Marco Vala and Ana Paiva, Intelligent Virtual Agents IVA'2012, pg. 189-195, Springer Berlin / Heidelberg, Eindhoven, The Netherlands, September, 2012

The Illusion of Robotic Life: Principles and Practices of Animation for Robots
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Tiago Ribeiro and Ana Paiva, Proceedings of the seventh annual ACM/IEEE international conference on Human-Robot Interaction, pg. 383--390, ACM, Boston, USA, 2012

Virtual Agents in Conflict
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Henrique Campos and Joana Campos and Carlos Martinho and Ana Paiva, Intelligent Virtual Agents IVA'2012, pg. 105-111, Springer Berlin / Heidelberg, Eindhoven, The Netherlands, September, 2012

When Agents Meet: Empathy, Moral Circle, Ritual, and Culture
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Nick Degebs and G.J. Hofstede and J. Mc Breen and A. Beulens and Samuel Mascarenhas and Nuno Ferreira and Ana Paiva, Workshop on Emotional and Empathic Agents at the 11th International Conference on Autonomous Agents and Multiagent Systems, 2012

  "I'm Sure I Made the Right Choice!" - Towards an Architecture to Influence Player's Behaviors in Interactive Stories
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Rui Figueiredo and Ana Paiva, ICIDS - International Conference on Digital Interactive Storytelling, Springer, 2011

A Computational Approach Towards Conflict Resolution for Serious Games
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Yun-Gyung Cheong and Rilla Khaled and Conrrado Grappiolo and Joana Campos and Carlos Martinho and Gordon P. D. Ingram and Ana Paiva and Georgios Yannakakis, Proceedings of the Sixth International Conference on the Foundations of Digital Games, ACM, 2011

A Computational Model for Finding the Tilt in an Improvised Scene
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António Brisson and Brian Magerko and Ana Paiva, Fourth International Conference on Interactive Digital Storytelling, ICIDS 2011, pg. 158-163, Springer Berlin / Heidelberg, Vancouver, Canada, November, 2011

A Game Prototype with Emotional Contagion
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Gonçalo Pereira and Joana Dimas and Rui Prada and Pedro Santos and Ana Paiva, Affective Computing and Intelligent Interaction, pg. 315--316, Springer, Memphis, USA, October, 2011

A Generic Emotional Contagion Computational Model
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Gonçalo Pereira and Joana Dimas and Rui Prada and Pedro Santos and Ana Paiva, Affective Computing and Intelligent Interaction, pg. 256--266, Springer, Memphis, USA, October, 2011

A Personal Approach: The Persona Technique in a Companion’s Design Lifecycle
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Joana Campos and Ana Paiva, Human-Computer Interaction – INTERACT 2011, pg. 73-90, Springer Berlin / Heidelberg, 2011

Agents with Emotional Intelligence for Storytelling
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João Dias and Ana Paiva, ACII 2011, pg. 77-86, Springer Berlin / Heidelberg, Eindhoven, The Netherlands, September, 2011

Automatic Analysis of Affective Postures and Body Motion to Detect Engagement with a Game Companion
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Jyotirmay Sanghvi and Ginevra Castellano and Iolanda Leite and André Pereira and Peter McOwan and Ana Paiva, HRI'2011- Human-Robot Interaction Conference, ACM Press, Lausanne, Switzerland, March, 2011

Between Downward Spirals and Habituation: Emotion Intensity in Virtual Agents' Memory Retrieval
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Paulo F. Gomes and Ana Paiva and Carlos Martinho, Proc. of The 2nd Symposium on Human Memory for Artificial Agents in AISB’11, pg. 15-19, Society for the Study of Artificial Intelligence and the Simulation of Behaviour (AISB), York, UK, April, 2011

Emerging social awareness: Exploring intrinsic motivation in multiagent learning
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Pedro Sequeira and Francisco S. Melo and Rui Prada and Ana Paiva, Proceedings of the First Joint IEEE International Conference on Development and Learning and on Epigenetic Robotics, pg. 1--6, IEEE, 2011

Emotion-Based Intrinsic Motivation for Reinforcement Learning Agents (Best Paper Award)
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Pedro Sequeira and Francisco S. Melo and Ana Paiva, Affective Computing and Intelligent Interaction (ACII 2011), pg. 326-336, Springer Berlin / Heidelberg, 2011

Empathy in Social Agents
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Ana Paiva, International Journal of Virtual Reality, Vol. 10, No. 1, pg. 65-68, 2011

Expressing Emotions on Robotic Companions with Limited Facial Expression Capabilities
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Tiago Ribeiro and Iolanda Leite and Jan Kedzierski and Adam Oleksy and Ana Paiva, Proceedings of the 11th International Conference on Intelligent Virtual Agents, pg. 466-467, Springer Berlin / Heidelberg, Eindhoven, The Netherlands, September, 2011

FAtiMA Modular: Towards an Agent Architecture with a Generic Appraisal Framework
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João Dias and Samuel Mascarenhas and Ana Paiva, Workshop on Standards in Emotion Modeling, Leiden, 2011

Games based learning for Exploring Cultural Conflict
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L. Hall and S Luft and Asad Nazir and John Hodgson and Michael Hall and Cristopher Ritter and S. Jones and Samuel Mascarenhas and B. Cooper and Ana Paiva and Ruth Aylett, AISB Symposium: AI & Games, pg. 6-7, York, 2011

I think I know you: a sharable memory model between agent and human
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Joana Campos and Ana Paiva, Proceeding of The 2nd Symposium on Human Memory for Artificial Agents in AISB’11, Society for the Study of Artificial Intelligence and the Simulation of Behaviour (AISB), April, 2011

I'm happy if you are happy. A model for emotional contagion in computer games
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Joana Dimas and Gonçalo Pereira and Pedro Santos and Rui Prada and Ana Paiva, Proceedings of The 8th International Conference on Advances in Computer Entertainment Technology (ACE), pg. 2195-2200, ACM, Lisbon, Portugal, November, 2011

I've Been Here Before! Location and Appraisal in Memory
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Paulo F. Gomes and Carlos Martinho and Ana Paiva, Proc. of The 10th Int. Conf. on Autonomous Agents and Multiagent Systems (AAMAS 2011), IFAAMAS (http://www.aamas-conference.org/), 2011

Integration and Evaluation of Prototypical Culture-related Differences
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Birgit Endrass and Nick Degens and Gert Jan Hofstede and Elisabeth Andre and Samuel Mascarenhas and Gregor Mehlmann and Ana Paiva, Workshop on Culturally Motivated Characters at the 11th International Conference on Intelligent Virtual Agents (IVA), pg. 1--9, Springer, Reykjav\'{\i}k, Iceland, 2011

Long-term socially perceptive and interactive robot companions: challenges and future perspectives
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Ruth Aylett and Ginevra Castellano and Bogdan Raducanu and Ana Paiva and Marc Hanheide, Proceedings of the 13th International Conference on Multimodal Interfaces, ICMI 2011, pg. 323-326, ACM, September, 2011

Modelling rituals for Homo Biologicus
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Gert Jan Hofstede and Samuel Mascarenhas and Ana Paiva, Proceedings of the Seventh Conference of the European Social Simulation, 2011

NPC memory affecting emotional reactions and path planning
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Paulo F. Gomes and Carlos Martinho and Ana Paiva

Persu - An architecture to apply persuasion in Interactive Storytelling
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Rui Figueiredo and Ana Paiva, ACE - Advances in Computer Entertainment, ACM, 2011

Providing Gender to Embodied Conversational Agents
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Marco Vala and Gabriel Blanco and Ana Paiva, pg. 148-154, Springer Berlin / Heidelberg, Eindhoven, The Netherlands, September, 2011

Robots Meet IVAs: A Mind-Body Interface for Migrating Artificial Intelligent Agents
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Michael Kriegel and Ruth Aylett and Pedro Cuba and Marco Vala and Ana Paiva, Intelligent Virtual Agents - 11th International Conference IVA 2011, pg. 282-295, Springer Berlin / Heidelberg, Eindhoven, The Netherlands, September, 2011

SARA: Social Affective Relational Agent: A Study on the Role of Empathy in Artificial Social Agents
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Sandra Gama and Gabriel Barata and Daniel Gonçalves and Rui Prada and Ana Paiva, Affective Computing and Intelligent Interaction - 4th International Conference, ACII 2011, pg. 507-516, Springer Berlin / Heidelberg, Eindhoven, The Netherlands, October, 2011

Social Robots in Learning Environments: a Case Study of an Empathic Chess Companion
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Iolanda Leite and André Pereira and Ginevra Castellano and Samuel Mascarenhas and Carlos Martinho and Ana Paiva, Proceedings of The International Workshop on Personalization Approaches in Learning Environments (PALE), CEUR Workshop Proceedings (ISSN 1613-0073), July, 2011

Tilt Riders: Improvisational Agents Who Know What the Scene is About.
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António Brisson and Brian Magerko and Ana Paiva, Proceedings of the 11th International Conference on Intelligent Virtual Agents, , Springer Berlin / Heidelberg, 2011

ViPleo and PhyPleo: Artificial pet with two embodiments
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Paulo F. Gomes and Elena Márquez Segura and Henriette Cramer and Tiago Paiva and Ana Paiva and Lars Erik Holmquist, The Proceedings of The 8th International Conference on Advances in Computer Entertainment Technology (ACE), ACM, Lisbon, Portugal, November, 2011

“How should I say this ?” Agents with culturally-appropriate verbal communication styles
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Samuel Mascarenhas and Ana Paiva and Nick Degens and John Mcbreen and Gert-jan Hofstede, Workshop on Culturally Motivated Characters at the 11th International Conference on Intelligent Virtual Agents (IVA), pg. 1-10, Springer, Reykjav\'{\i}k, Iceland, 2011

  "I want to slay that dragon" - Influencing Choice in Interactive Storytelling
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Rui Figueiredo and Ana Paiva, ICIDS 2010 - The third International Conference on Interactive Digital Storytelling, pg. 26-37, Springer, November, 2010

A Dimensional Model for Cultural Behaviour in Virtual Agents
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Samuel Mascarenhas and João Dias and Rui Prada and Ana Paiva, Applied Artificial Intelligence, Vol. 24, No. 6, pg. 552-574, 2010

Affect Recognition for Interactive Companions: Challenges and Design in Real World Scenarios
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Ginevra Castellano and Iolanda Leite and André Pereira and Carlos Martinho and Ana Paiva and Peter McOwan, Journal on Multimodal User Interfaces, Vol. 3, No. 1, pg. 89-98, 2010

Affecting Choices in Interactive Storytelling
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Rui Figueiredo and Ana Paiva, AAAI Fall Symposium in Computational Models of Narrative, November, 2010

Closing the Loop: from Affect Recognition to Empathic Interaction
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Iolanda Leite and André Pereira and Samuel Mascarenhas and Ginevra Castellano and Carlos Martinho and Rui Prada and Ana Paiva, Proceedings of the 3rd International Workshop on Affect Interaction in Natural Environments (AFFINE'10), ACM Multimedia 2010, Florence, Italy, ACM, October, 2010

Creating Individual Agents through Personality Traits
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Tiago Doce and João Dias and Rui Prada and Ana Paiva, IVA'2010 - 10th International Conference on Intelligent Virtual Agents, pg. 257-264, Springer Berlin / Heidelberg, Philadelphia, USA, September, 2010

Creating Virtual Synthetic Cultures for Intercultural Training
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Samuel Mascarenhas and Ana Paiva, Proceedings of the 3rd Workshop on Culturally-Aware Tutoring Systems held in conjuction with the International Conference on Intelligent Tutoring Systems, pg. 25-35, Pittsburgh, USA, 2010

Episodic memory retrieval through re-appraisal of past events
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Paulo F. Gomes and Ana Paiva and Carlos Martinho, Proc. of The 10th International Conference on Intelligent Virtual Agents - Supplementary Materials, pg. 26-27, Springer, Philadelphia, USA, September, 2010

FearNot!: a computer-based anti-bullying-programme designed to foster peer intervention
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Natalie Vannini and Sibylle Enz and Maria Sapouna and Dieter Wolke and Scott Watson and Sarah Woods and Kerstin Dautenhahn and Lynne Hall and Ana Paiva and Elizabeth Andre and Ruth Aylett , European Journal of Psychology of Education, 2010

Inter-ACT: An Affective and Contextually Rich Multimodal Video Corpus for Studying Interaction with Robots
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Ginevra Castellano and Iolanda Leite and André Pereira and Carlos Martinho and Ana Paiva and Peter McOwan, Proceedings of the ACM International Conference on Multimedia, Florence, Italy, ACM, October, 2010

Inter-cultural differences in response to a computer-based anti-bullying intervention
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Scott Watson and Natalie Vannini and Sarah Woods and Kerstin Dautenhahn and Maria Sapouna and Lynne Hall and Ana Paiva and Elizabeth Andre and Ruth Aylett, Educational Research,, Vol. 52, No. 1, 2010

MAY: My Memories Are Yours
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Joana Campos and Ana Paiva, Proceedings of the 10th International Conference on Intelligent Virtual Agents, pg. 406-412, Springer Berlin / Heidelberg, 2010

Pervasive Pleo: Long-term Attachment with Artificial Pets
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Joana Dimas and Iolanda Leite and André Pereira and Pedro Cuba and Rui Prada and Ana Paiva, Please enjoy!: Workshop on playful experiences in Mobile HCI, Lisbon, Portugal, September, 2010

Something’s Gotta Give - Towards Distributed Autonomous Story Appraisal in Improv
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António Brisson and Ana Paiva, Third Joint Conference on Interactive Digital Storytelling, ICIDS 2010, November 1-3, 2010, Proceedings, pg. 198-203, Springer , Edinburgh, UK, November, 2010

Using Empathy to Improve Human-Robot Relationships
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André Pereira and Iolanda Leite and Samuel Mascarenhas and Carlos Martinho and Ana Paiva, Proceedings of the 3rd International Conference on Human-Robot Personal Relationships, Springer LNICST series (to appear), 2010

”Why Can’t We Be Friends?” An Empathic Game Companion for Long-Term Interaction
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Iolanda Leite and Samuel Mascarenhas and André Pereira and Carlos Martinho and Rui Prada and Ana Paiva, Proceedings of the 10th International Conference on Intelligent Virtual Agents, pg. 315-321, Springer Berlin / Heidelberg, 9, 2010

  Social interaction with robots and agents: Where do we stand, where do we go?
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E. Hudlicka and S. Payr and R. Ventura and C. Becker-Asano and K.Fischer and Iolanda Leite and Ana Paiva and C. Von, Affective Computing & Intelligent Interaction - ACII 2009, IEEE PRESS, 2009

An Immersive Approach to Evaluating Role Play
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Lynne Hall and Ruth Aylett and Ana Paiva, Intelligent Virtual Agents - IVA 2009, pg. pp. 498-499 , Springer Berlin / Heidelberg, 2009

As Time goes by: Long-term evaluation of social presence in robotic companions
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Iolanda Leite and Carlos Martinho and André Pereira and Ana Paiva, Proceedings of the 18th IEEE International Symposium on Robotics - RO-MAN 2009, pg. 669-674, IEEE Computer Society, 2009

But that was in another country: agents and intercultural empathy
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Ruth Aylett and Natalie Vannini and Ana Paiva and Sibylle Enz and Lynne E. Hall, 8th International Joint Conference on Autonomous Agents and Multiagent Systems (AAMAS 2009) , pg. 329-336, IFAAMAS, 2009

Designing a Game Companion for Long-Term Social Interaction
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Iolanda Leite and Ginevra Castellano and André Pereira and Carlos Martinho and Ana Paiva and Peter Mc Owan, Workshop on Affective Interaction in Natural Environments - AFFINE 2009, ACM Proceedings, 2009

Detecting user engagement with a robot companion using task and social interaction-based features
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Ginevra Castellano and André Pereira and Iolanda Leite and Ana Paiva and Peter Mc Owan, International Conference on Multimodal Interfaces - ICMI 2009, pg. pp. 119--126 , ACM, 2009

I can feel it too! Emergent empathic reactions between synthetic characters
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Sérgio Hortas Rodrigues and Samuel Mascarenhas and João Miguel Assis Dias and Ana Paiva, Affective Computing and Intelligent Interaction and Workshops, 2009. ACII 2009. 3rd International Conference on, pg. 1 -7, IEEE, sept., 2009

Influence of Music and Sounds in an Agent-Based Storytelling Environment
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António João Martins Leonardo and António Brisson and Ana Paiva, Intelligent Virtual Agents - IVA 2009, pg. 523-524, Springer, 2009

Intelligent NPCs for educational role play game
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Mei Yii Lim and João Miguel Assis Dias and Ruth Aylett and Ana Paiva, Agents for Games and Simulations, Trends in Techniques, Concepts and Design - AGS 2009 , pg. 107-118, Springer, 2009

ION Framework - A Simulation Environment for Worlds with Virtual Agents
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Marco Vala and Guilherme Raimundo and Pedro Sequeira and Pedro Cuba and Rui Prada and Carlos Martinho and Ana Paiva, 9th International Conference on Intelligent Virtual Agents - IVA2009, pg. 418–424, Springer Berlin / Heidelberg, Amsterdam, The Netherlands, September, 2009

It's all in the game: Towards an affect sensitive and context aware game companion
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Ginevra Castellano and Iolanda Leite and André Pereira and Carlos Martinho and Ana Paiva and Peter McOwan, 3rd International Conference on Affective Computing and Intelligent Interaction Proceedings, pg. 1-8, 2009

Chapter Narrative Learning in Technology-Enhanced Environments - An Introduction to Narrative Learning Environments
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Giuliana Dettori and Ana Paiva, Narrative Learning in Technology-Enhanced Learning, , Springer Science+Business Medi, 2009

One for all or one for one? The influence of Cultural Dimensions in Virtual Agents
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Samuel Mascarenhas and João Dias and Rui Prada and Ana Paiva, IVA'2009 - 9th International Conference on Intelligent Virtual Agents, pg. 272-286, Springer Berlin / Heidelberg, Amsterdam, The Netherlands, September, 2009

Teaming Up Human with Synthetic Characters
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Rui Prada and Ana Paiva, Artificial Intelligence, Elsevier, Vol. 173, No. 1, pg. 80-103, January, 2009

The music of paintings: a rhythmic perspective
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André Gonçalves and Eduardo Lopes and Ana Paiva, Generative Art International Conference - GA 2009, 2009

The music of paintings: a rhythmic perspective
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André Gonçalves and Eduardo Lopes and Ana Paiva, The 12 th Generative Art International Conference, 2009

Towards and Empathic Chess Companion
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Iolanda Leite and André Pereira and Carlos Martinho and Ana Paiva and Peter Mc Owan and Ginevra Castellano, Autonomous Agents and Multiagent Systems - AAMAS 2009, IFAMAAS, 2009

Using rituals to express cultural differences in synthetic character
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Samuel Mascarenhas and João Miguel Assis Dias and Nuno Afonso and Sybille Enz and Ana Paiva, Autonomous Agents and Multiagent Systems - AAMAS 2009, pg. 305-312, IFAMAAS, 2009

  Affective Agents for Education against Bullying
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Ruth Aylett and Ana Paiva and João Dias and Lyn Hall, Affective Information Processing, Springer, Tao J. and Tan T., 2008

Anticipation and Believability
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Carlos Martinho and Ana Paiva

Are emotional robots more fun to play with?
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Iolanda Leite and André Pereira and Carlos Martinho and Ana Paiva, The 17th IEEE International Symposium on Robot and Human Interactive Communication - RO-MAN 2008 , pg. 77-82, IEEE Computer Society, 2008

Designing a pervasive chess game
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André Pereira and Carlos Martinho and Iolanda Leite and Rui Prada and Ana Paiva, Zon Digital Games 2008, pg. 54-63, Centro de Estudos de Comunicação e Sociedade, Universidade do Minho, Porto, Portugal, November, 2008

EditION: A Collaborative Calligraphic Tool to Manage Virtual Environments
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Alfredo Ferreira and Marco Vala and Guilherme Raimundo and João António Madeiras Pereira and Joaquim Armando Jorge and Ana Paiva, VL/HCC Workshop: Sketch Tools for Diagramming, pg. 37-46, Herrsching am Ammersee, Germany, September, 2008

Emergent Stories Facilitated - An architecture to generate stories using intelligent synthetic characters
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Rui Figueiredo and António Brisson and Ruth Aylett and Ana Paiva, ICIDS - Interactive Digital Storytelling, Springer, 2008

From Pencil to Magic Wand: Tangibles as Gateways to Virtual Stories
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Ana Paiva, Transactions on Edutainment , Vol. 5080, pg. 161-171, 2008

iCat, the chess player: the influence of embodiment in the enjoyment of a game
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André Pereira and Carlos Martinho and Iolanda Leite and Ana Paiva, 7th International Joint Conference on Autonomous Agents and Multiagent Systems - AAMAS 2008, pg. 1253-1256, IFAAMAS, 2008

iCat: an affective game buddy based on anticipatory mechanisms
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Iolanda Leite and Carlos Martinho and André Pereira and Ana Paiva, 7th International Joint Conference on Autonomous Agents and Multiagent Systems - AAMAS 2008, pg. 1229-1232, IFAAMAS, 2008

Improving Adaptiveness in Autonomous
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Mei Yii Lim and Ruth Aylett and João Miguel Assis Dias and Ana Paiva, Proceedings of the 8th international conference on Intelligent Virtual Agents - IVA 2008, pg. 348-355, Springer Verlag, 2008

Learning to interact: connecting perception with action in virtual environments
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Pedro Sequeira and Ana Paiva, Proceedings of the 7th international joint conference on Autonomous agents and multiagent systems, pg. 1257-1260 , International Foundation for Autonomous Agents and Multiagent Systems , 2008

So tell me what happened: turning agent-based interactive drama into comics
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Tiago Alves and Ana Simões and Rui Figueiredo and Marco Vala and Ana Paiva and Ruth Aylett, International Joint Conference on Autonomous Agents and Multiagent Systems - AAMAS 2008 , pg. 1269-1272, IFAMAAS, 2008

New Advances in Virtual Humans: Artificial Intelligence Environment
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Rui Prada and Ana Paiva, Social Intelligence in Virtual Groups, pg. 113-132, Vol. 140, Springer Berlin / Heidelberg, Nadia Magnenat-Thalmann, Lakhmi C. Jain, Nikhil Ichalkaranje, 2008

Social Presence in Long-Term Human-Computer Relationships
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Iolanda Leite and Carlos Martinho and Ana Paiva and André Pereira, Fourth International Workshop on Human-Computer Conversation, 2008

  "What can I do with this?" – Finding Possible Interactions between Characters and Objects
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Pedro Sequeira and Marco Vala and Ana Paiva, Proceedings of the 6th International Joint Conference on Autonomous Agents and Multiagent Systems AAMAS’07, pg. 14-18, ACM Press, 2007

Affective Computing and Intelligent Interaction, Second International Conference, ACII 2007
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Ana Paiva and Rui Prada and Rosalind W. Picard, Springer, Vol. Proceedings Series: Lecture Notes in Computer Science, Vol. 4738

Agents that remember can tell stories: Integrating Autobiographic Memory into Emotional Agents
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Wan Ching Ho and João Dias and Rui Figueiredo and Ana Paiva, AAMAS - Autonomous Agents and Multiagent Systems, 2007

Are we telling the same story?
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António Brisson and Ana Paiva, AAAI Fall Symposium on Narrative Intelligence Technologies, 2007

Authoring Emergent Narrative Based Games
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Sandy Louchart and Ruth Aylett and Michael Kriegel and João Dias and Rui Figueiredo and Ana Paiva, Journal of Game Development, Vol. 3, pg. 19-37, 2007

Authoring Emergent Narrative Based Games
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Ruth Aylett and Sandy Louchart and Michael Kriegel and Rui Figueiredo and João Dias and Ana Paiva, , 2007

DIGITEL 2007, The First IEEE International Workshop on Digital Game and Intelligent Toy Enhanced Learning, Proceedings
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Tak-Wai Chan and Ana Paiva and David Williamson Shaffer and Kinshuk and Jie-Chi Yang, IEEE Computer Society

Editor caligráfico para gestão de ambientes virtuais
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Alfredo Ferreira and Marco Vala and Guilherme Raimundo and Joaquim Armando Jorge and Ana Paiva and João António Madeiras Pereira, 15º Encontro Português de Computação Gráfica, Oeiras, Portugal, October, 2007

Facilitating the Emergence of Educational Stories - Using emergent stories for pedagogical proposes
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Rui Figueiredo and Ana Paiva and Ruth Aylett, NLE Workshop in AIED, 2007

FearNot! demo: a virtual environment with synthetic characters to help bullying
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Marco Vala and Pedro Sequeira and Ana Paiva and Ruth Aylett, 6th International Joint Conference on Autonomous Agents and Multiagent Systems (AAMAS 2007), IFAAMAS, 2007

From Chinese Shadows to Interactive Shadows: Building a storytelling application with autonomous shadows
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António Brisson and João Miguel Assis Dias and Ana Paiva, Workshop on Agent-Based Systems for Human Learning and Entertainment (ABSHLE)AAMAS ACM 2007, 2007

I Know What I Did Last Summer: Autobiographic Memory in Synthetic Characters
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João Dias and Wan Ching Ho and Nathalie Beeckman and Ana Paiva and Elisabeth André, Affective Computing and Intelligent Interaction, Second International Conference - ACII 2007, pg. 606-617, Springer, 2007

I-Sounds - Emotion-Based Music Generation for Virtual Environments
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Rui Cruz and António Brisson and Ana Paiva and Eduardo Lopes, Proceedings 2nd International Conference on Affective Computing and Intelligent Interaction (ACII-2007, Springer, 2007

The Role of Technology in CSCL: Studies in Technology Enhanced Collaborative Learning
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H. Ulrich Hoppe and Andreas Lingnau and Frank Tewissen and Ana Paiva and Rui Prada and Isabel Machado, Supporting collaborative activities in computer-integrated classrooms - the NIMIS approach, pg. 121-138, Vol. 9, Springer US, H. Ulrich Hoppe, Amy Soller, Hiroaki Ogata, 2007

Telling Stories with a Synthetic Character: Understanding Inter-modalities Relations
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Guilherme Raimundo and João Cabral and Celso Melo and Luís Oliveira and Ana Paiva and Isabel Trancoso

The user in the group: evaluating the effects of autonomous group dynamics
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Rui Prada and Nuno Otero and Ana Paiva, ACE'2007 - 4th International Conference on Advances in Computer Entertainment Technology, pg. 25-32, ACM , Salzburg, Austria, June, 2007

  Empathic Characters in Computer-based Personal and Social Education
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João Dias and Ana Paiva and Marco Vala and Ruth Aylett and Sarah Woods and Carsten Zoll, Affective and Emotional Aspects of Human-Computer Interaction, Vol. 1, IOS Press, Maja Pivec, 2006

An affectively driven planner for synthetic characters
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Ruth Aylett and João Dias and Ana Paiva, Proceedings of International Conference on Automated Planning and Scheduling (ICAPS06), UK, 2006

Children as affective designers - i-shadows development process
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Ana Paiva and Mafalda Fernandes and António Brisson, WP9 Workshop on Innovative Approaches for Evaluating Affective Systems, 2006

Mainstream Games in the Multi-agent Classroom
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Celso Melo and Rui Prada and Guilherme Raimundo and Joana Paulo Pardal and Helena Sofia Pinto and Ana Paiva, IAT'06 - IEEE/WIC/ACM International Conference on Intelligent Agent Technology, pg. 757 -761, IEEE, Hong Kong, December, 2006

Making It Up as You Go Along - Improvising Stories for Pedagogical Purposes
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Ruth Aylett and Rui Figueiredo and Sandy Louchart and João Dias and Ana Paiva, IVA'2006 -Intelligent Virtual Agents, Springer, 2006

Multimodal expression in virtual humans
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Celso de Melo and Ana Paiva, Computer Animation and Virtual Worlds, Vol. 17, pg. 239–248, 2006

Shaping Emergent Narratives for a Pedagogical Application
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Rui Figueiredo and João Dias and Ruth Aylett and Sandy Louchart and Ana Paiva

Unscripted Narrative for Affectively Driven Characters
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Ruth Aylett and Sandy Louchart and João Dias and Ana Paiva and Marco Vala and Sarah Woods and Lynne Hall, IEEE Computer Graphics and Applications, pg. 43-52, May-June, 2006

Using Theory of Mind to investigate empathic engagement with synthetic characters
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Lynne Hall and Sarah Woods and Ruth Aylett and Ana Paiva , Journal of Humanoid Robotics, Vol. 3, No. 3, pg. 351-370, 2006

What voice do we expect from a synthetic character?
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João Cabral and Luís Oliveira and Guilherme Raimundo and Ana Paiva, Proceedings of the Eleventh International Conference "Speech and Computer", pg. 536-539, June, 2006

  A Believable Group in the Synthetic Mind
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Rui Prada and Ana Paiva, AISB'2005 - Joint Symposium on Virtual Social Agents: Mind-Minding Agents, pg. 207-214, AISB, Hatfield, England, Abril, 2005

Affective Agents for Education Against Bullying
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Ruth Aylett and Ana Paiva and João Dias and Lyn Hall and Sarah Woods, 1st International Conference on Affective Computing and Intelligent Interaction, Springer Berlin / Heidelberg, 2005

Believable groups of synthetic characters
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Rui Prada and Ana Paiva, AAMAS'05 - 4th International Joint Conference on Autonomous Agents and Multi Agent Systems, pg. 37-43, ACM, Utrecht, The Netherlands, July, 2005

Designing Affect in an Interactive Chinese Shadows Theater
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Ana Paiva and Mafalda Fernandes and António Brisson, Proceedings of the WP6 Workshop, 2005

FearNot! an Experiment in Emergent Narrative
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Ruth Aylett and Sandy Louchart and João Dias and Ana Paiva, IVA'2005 - 5th International Conference on Intelligent Virtual Agents, pg. 305-316, Springer Berlin / Heidelberg, 2005

Feeling and Reasoning: a Computational Model for Emotional Agents
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João Dias and Ana Paiva, Proceedings of 12th Portuguese Conference on Artificial Intelligence, EPIA 2005, pg. 127-140, Springer, 2005

Intelligent Virtual Agents in Collaborative Scenarios
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Rui Prada and Ana Paiva, IVA'2005 - 5th International Conference on Intelligent Virtual Agents, pg. 317-328, Springer Berlin / Heidelberg, Kos - Grécia, September, 2005

Introduction to Affective Computing Workshop
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Ana Paiva and Carlos Martinho and Eugénio Oliveira, Springer

Synthetic Group Dynamics in Entertainment Scenarios: Creating Believable Interactions in Groups of Synthetic Characters
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Rui Prada and Ana Paiva, ACE'2005 - ACM SIGCHI 2nd International Conference on Advances in Computer Entertainment Technology, ACM, Valencia, Spain, June, 2005

  BeLife: Teaching Greenhouse Management using an Agent Based
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Rui Prada and Nuno Otero and André Vala and Ana Paiva, ABS'2004 - 5th International Conference on Agent Based Simulation, Lisbon, Portugal, May, 2004

Building Believability in Groups of Synthetic Characters
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Rui Prada and Ana Paiva, Workshop on Coalition and Teams: Formation and Activity. AAMAS'04 - 3rd International Joint Conference on Autonomous Agents and Multi Agents Systems, New York, USA, September, 2004

Caring for Agents and Agents that Care: Building Empathic Relations with Synthetic Agents
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Ana Paiva and João Dias and Daniel Sobral and Ruth Aylett and Sarah Woods and Carsten Zoll and Lynne Hall, AAMAS'2004 - International Conference on Autonomous Agents and Multi-agent Systems, ACM Press, July, 2004

From Motion Control to Emotion Influence: Controlling Autonomous Synthetic Characters in a Computer Game
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Marco Vala and Rui Prada and Ana Paiva, AAMAS'04 - 3th International Joint Conference on Autonomous Agents and Multi Agent Systems, pg. 1302-1303, IEEE Computer Society, New York, USA, July, 2004

Life-like Characters. Tools, Affective Functions and Applications
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Ana Paiva and Rui Prada and Isabel Machado and Carlos Martinho and Marco Vala and André Silva, Playing with Agents - Agents in Social and Dramatic Games, pg. 361-376, Springer, Helmut Prendinger, Mitsuru Ishizuka, 2004

Tangible Influence: towards a new interaction paradigm for computer games
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Marco Vala and Rui Prada and Ana Paiva, ICEC'2004 - 3rd International Conference on Entertainment Computing, pg. 21-55, Springer Berlin / Heidelberg, Eindhoven, The Netherlands, September, 2004

To tell or not to tell...Building an interactive virtual storyteller
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André Silva and Guilherme Raimundo and Ana Paiva and Celso Melo, Proceedings of the Language, Speech and Gesture for Expressive Characters Symposium, Artificial Intelligence and the Simulation of Behaviour Covention, March, 2004

  FantasyA - The Duel of Emotions
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Rui Prada and Marco Vala and Ana Paiva and Kristina Höök and Adrian Bullock, IVA'2003 - 4th International Working Conference on Intelligent Virtual Agents, pg. 62-66, Springer Berlin / Heidelberg, Irsee, Germany, September, 2003

Fantasya and Sentoy
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Kristina Höök and Adrian Bullock and Ana Paiva and Marco Vala and Ricardo Chaves and Rui Prada, CHI'2003 - Conference on Human Factors in Computing Systems, pg. 804-805, ACM, Fort Lauderdale, Florida, USA, April, 2003

Tell me that bit again... Bringing interactivity to a virtual storyteller
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André Silva and Guilherme Raimundo and Ana Paiva, Proceedings of the Second International Conference on Virtual Storytelling, pg. 146-154, Springer Berlin / Heidelberg, November, 2003

Towards Tangibility in Gameplay: Building a Tangible Affective Interface for a Computer Game
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Ana Paiva and Rui Prada and Ricardo Chaves and Marco Vala and Adrian Bullock and Gerd Andersson and Kristina Höök, ICMI'2003 - 5th international conference on Multimodal interfaces, pg. 60 - 67, ACM, Vancouver, Canada, November, 2003

  Sentoy in FantasyA: Designing an Affective Sympathetic Interface to a Computer Game
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Ana Paiva and Carlos Martinho, Personal and Ubiquitous Computing Journal, Vol. 6, No. 5-6, 2002

You cannot use my broom! I'm the witch, you're the prince: Collaboration in a Virtual Dramatic Game
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Rui Prada and Ana Paiva and Isabel Machado and Catarina Gouveia, ITS'2002 - 6th International Conference on Intelligent Tutoring Systems, pg. 913-922, Springer Berlin / Heidelberg, Biarritz, France, June, 2002

  Heros, villains, magicians,...: dramatis personae in a virtual story creation environment
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Ana Paiva and Isabel Machado and Rui Prada, IUI'2001 - 5th International Conference on Intelligent User Interfaces, pg. 129-136, ACM, Santa Fe, New Mexico, USA, January, 2001

Is the wolf angry or ... just hungry?: Inspecting, disclosing and modifying characters
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Isabel Machado and Ana Paiva and Rui Prada, AA'2001 - 5th International Conference on Autonomous Agents, pg. 370-376, ACM, Montreal, Canada, May, 2001

Papous: The Virtual Storyteller
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André Silva and Marco Vala and Ana Paiva, IVA'2001- Intelligent Virtual Agents, Springer Berlin / Heidelberg, Eindhoven, The Netherlands, September, 2001

Real Characters in Virtual Stories
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Isabel Machado and Ana Paiva and Paul Brna, ICVS'2001 International Conference on Virtual Storytelling, Springer Berlin / Heidelberg, Eindhoven, The Netherlands, 2001

The Child Behind the Character
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Ana Paiva and Isabel Machado and Rui Prada, IEEE Transactions on Systems, Man and Cybernetics special issue on Socially Intelligent Agents - The Human in the Loop, Vol. 31, No. 5, pg. 361-368, September, 2001

  Bringing Drama Into a Virtual Stage
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Isabel Machado and Rui Prada and Ana Paiva, CVE'2000 - 3rd International Conference on Collaborative Virtual Environments, pg. 111-117, ACM, San Francisco, USA, September, 2000

Emotions for a Motion: rapid development of Believable Pathematic agents in intelligent virtual environments
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Carlos Martinho and Ana Paiva and Mario Rui Gomes, Applied Artificial Intelligence, Vol. 14, pg. 33-68, 2000

Supporting Collaborative Activities in Computer Integrated Classrooms - the NIMIS approach
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Ulrich Hoppe and Andreas Lingnau and Isabel Machado and Ana Paiva and Rui Prada and Frank Tewissen, CRIWG'2000 - 6th International Workshop on Groupware, pg. 94-101, IEEE Computer Society, Madeira, Portugal, October, 2000

TEATRIX: Virtual Environment for Story Creation
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Rui Prada and Isabel Machado and Ana Paiva, ITS'2002 - 5th International Conference on Intelligent Tutoring Systems, pg. 464-473, Springer Berlin / Heidelberg, Montreal, Canada, June, 2000

You cannot use my broom! I'm the witch, you're the prince: Collaboration in a Virtual Dramatic Game
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Ana Paiva and Rui Prada and Isabel Machado, NTCL'2000 - The International Workshop on New Technologies for Collaborative Learning, Tokushima, Japan, 2000

  Externalising Learner Models
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Ana Paiva and John Self and Roger Hartley, AIED'95- Artificial Intelligence in Education, IOS Press, 1995

TAGUS - A User and Learner Modeling Workbench
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Ana Paiva, User Modeling and User-Adapted Interaction, Vol. 4, pg. 197-226, 1995

  A Learner Model Reason Maintenance System
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Ana Paiva and John Self, ECAI 94. 11th European Conference on Artificial Intelligence, John Wiley & Sons, Ltd., 1994

On the dynamic of Learner Models
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Ana Paiva and John Self and Roger Hartley, ECAI 94- 11th European Conference on Artificial Intelligence, John Wiley & Sons, Ltd., 1994