Ricardo Imbert

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In this paper we propose an architecture for the development of Intelligent Virtual Environments for Training, which is based on a collection of cooperative software agents. The first level of the architecture is an extension of the classical Intelligent Tutoring System architecture that adds to the expert, student, tutoring and communication modules a new(More)
This paper presents the mechanisms proposed by a generic cognitive architecture for virtual characters with emotional influenced behaviors, called cognitiva, to maintain behavior control at will without giving up the richness provided by emotions. This architecture, together with a progressive specification process for its application, have been used(More)
Intelligent behaviours have been traditionally considered exclusively as products of pure rationality processes. Considering other influential factors, such as emotions, has been accused of being " non scientific ". However, pure rational processes fail when trying to explain most of human behaviours, in which emotion plays a key role. Nevertheless,(More)
In the last decades, cognitive and neuroscience findings about emotion have motivated the design of emotional-based architectures to model individuals' behavior. Currently, we are working with a cognitive, multi-layered architecture for Agents, which provides them with emotion-influenced behavior and has been extended to model social interactions. This(More)
As the Internet has become a global medium for communication, virtual environments are consolidating as the arena where users can interact with each others in a synchronous, three-dimensional way. However, the poor behaviour usually shown by the avatars that inhabit these worlds, makes it difficult to achieve an acceptable level of immersion of their users(More)
The traditional consideration that intelligent behaviors can only be produced from pure reasoning fails when trying to explain most of human behaviors, in which the emotional component has a decisive weight. However, the inclusion of this kind of emotional factors charges agent architectures with an extra complexity, making them less efficient or reusable.(More)
Nobody has doubts about the Virtual Environments as a tool with a future: their possible applications are huge and they are very attractive for users. However, the lack of believability of virtual characters leads the users to get bored of these Virtual Environments or, at least, to lose the impression of being interacting with other real users, instead of(More)
The lack of believability of nowadays virtual characters may lead the users of Distributed Virtual Environments to stop using them, once the initial attraction of the innovation has declined. The successful use in the future of Distributed Virtual Environments for complex tasks, beyond simple chatting systems, might depend on our ability to provide the user(More)