• Journals

[2001]

Machado, I., Paiva, A.: “Me, my character and the others”. To be published on "Socially Intelligent Agents - creating relationships with computers and robots" issue of the Multiagent Systems, Artificial Societies, and 
Simulated Organizations Series, (eds.) Dautenhahn, K., Bond, A., Canamero, D. and Edmonds, B., Kluwer, 2001.

Paiva, A., Machado, I., Prada, R.: “The child behind the character”. To be published in a special Issue on "Socially Intelligent Agents - The Human in the Loop", editor Dautenhahn, K., IEEE SMC, 2001.

[2000]

Martinho, C., Machado, I. & Paiva, A.: “A Cognitive Approach to Affective User Modeling”. Published in LNAI 1814 – Affect in Interaction: Towards a new generation of interfaces, editors. Paiva A., Springer Verlag, 2000.

• Proceedings

     [2001]

Machado, I., Paiva, A., Brna, P.: “Real characters in virtual worlds”. To be published in the proceedings of  1^st International Conference on Virtual Storytelling, Springer, 2001.

Machado, I., Brna, P., Paiva, A.: “Learning by playing”. Published in the Proceedings of the 10^th International Conference on Artificial Intelligence in Education, 2001.

Machado, I., Paiva, A., Prada, R.: “Is the wolf angry or … just hungry? – Inspecting, disclosing and modifying characters’ minds”.  Published in the Proceedings of the 5^th International Conference on Autonomous Agents, 2001.

 Paiva, A., Machado, I. Prada, R.: “Heroes, Villains, Magicians,…: Dramatis Personae in a Virtual Story Creation Environment”. Published in the Proceedings of the International Conference on Intelligent User Interfaces, ACM Press, 2001.

[2000]

Machado, I.: “In the land of make-believe”. Published in the Proceedings of the Workshop “Narrative and Interactive Learning Environments”, 2000.

Machado, I. & Paiva, A.: “The child behind the character”.  Published in the Proceedings of the Fall Symposium of AAAI 2000 on Socially Intelligent Agents - The Human in The Loop, 2000.

 Machado, I. & Paiva, A.: “What are Characters for?”. Published in the Proceedings of the Workshop “Communicative Agents in Intelligent Virtual Environments” da 4^th International Conference on Autonomous Agents, 2000.

 Machado, I., Prada, R. & Paiva, A.: “Bringing Drama into a Virtual Stage”. Published in the Proceedings of the Third International Conference on Collaborative Virtual Environments, ACM, 2000.

 Paiva, A., Prada, R., Machado, I.: “You cannot use my broom! I’m the witch, you’re the prince: Collaboration in a Virtual Dramatic Game”. Published in the Proceedings of the International Workshop on New Technologies for Collaborative Learning, 2000.

 Hoppe, U., Lingnau, A., Machado, I., Paiva, A., Prada, R. & Tewissen, F.: “Supporting Collaborative Activities in Computer Integrated Classrooms – the NIMIS approach”. Published in the Proceedings of the 6th International Workshop on Groupware, IEEE CS Press, 2000.

Prada, R., Machado, I. & Paiva, A.: “TEATRIX: Virtual Environment for Story Creation”. Published in the Proceedings of the 5^th International Conference of Intelligent Tutoring Systems, Springer-Verlag, 2000.

[1999]

 Machado, I., Martinho, C. & Paiva, A.: “Once upon a time”. Published in the Proceedings of the Fall Symposium of AAAI 1999 on Narrative Intelligence, 1999.

Machado, I., Paiva, A.: “Heroes, Villains, Magicians, …: Believable Characters in a Story Creation Environment”.Published in the Proceedings of the Workshop “Animated and Personified Pedagogical Agents” da 9^th International Conference on Artificial Intelligence in Education, 1999.

Machado, I. : "Narrative Control in a Story Creation Environment". Published in the Proceedings of the Young Researchers Track of the 9^th International Conference on Artificial Intelligence in Education, 1999.

Machado, I., Martins, A., Paiva, A.: “One for All and All in One - A learner modelling server in a multi-agent platform”. Published in the Proceedings of the 7^th International Conference on User Modeling, Springer, 1999.

 Paiva, A., Machado, I., Martinho, C.: “Enriching Pedagogical Agents with Emotional Behavior: the case of Vincent”. Published in the Proceedings of the Workshop “Animated and Personified Pedagogical Agents” da 9^th International Conference on Artificial Intelligence in Education, 1999.

Paiva, A., Machado, I., Martins, A.: “Using and Re-using Agents in Multi-Agent Learning Environments”. Published in the Proceedings of the 9^th International Conference on Artificial Intelligence in Education, 1999.

[1998]

Martins, A., Machado, I., Paiva, A., “A KQML-based Communication Framework for Multi-agent based ILEs”. Published in the Proceedings of the Workshop Pedagogical Agents da 4^th International Conference of Intelligent Tutoring Systems, 1998.

Paiva, A., Machado, I., “Vincent, an autonomous pedagogical agent for on-the-job training”. Published in the Proceedings of the 4^th International Conference of Intelligent Tutoring Systems, Springer-Verlag, 1998.

Paiva, A., Machado, I., “A Personalised Web-based Pedagogical Agent for Training Industry Workers”. Published in the Proceedings of the International Conference on Computers and Advanced Technology in Education, 1998.