Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 20 for “"Virtual agents"”.
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A human-like perceptual model for intelligent virtual agents = Modelo de percepción para agentes virtuales inteligentes
A priority in Intelligent Virtual Agents Systems (IVAS) and multi- Intelligent Virtual Agents Systems (mlVAS) is to introduce human-like sensitiva perception. Within the cognitive research área, there are some studies underwriting that human perception can be understood as a first level of an …
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Using affective computing to enhance the believability of virtual agents and the social interaction with users
The drive to create believable virtual agents capable of engaging in natural social interactions with humans has fuelled extensive research efforts in affective computing, the field dedicated to developing systems that recognize and adapt to human emotions. Despite advancements in recent decades, …
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A Cyber-Physical System (CPS) Approach to Support Worker Productivity based on Voice-Based Intelligent Virtual Agents
… the first prototype of a voice-based intelligent virtual agent, aka VIVA, and focuses on evaluating the human factors and testing performance of voice as a modality for worker support. VIVA was tested using a user study involving a simulated construction scenario and the results of the performance …
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Designing and testing an experimental framework of affective intelligent agents in healthcare training simulations
… study is to investigate how emotionally enabled virtual agents (VAs) in healthcare provision training simulations allow for a more effective level of understanding on how an emotionally enhanced scenario can affect different aspects of learning. This is achieved by developing virtual agents that …
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Believable conversational agents for teaching ancient history and culture in 3D virtual worlds
This thesis introduces believable conversational agents as an engaging and motivational learning tool for teaching ancient history and culture in virtual worlds. Traditional approaches are lacking engagement, interactivity and socialisation, features that are of tremendous importance to modern …
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Providing informational support to HIV + women in a virtual environment : a case study comparing the effects of virtual reality and paper media for content delivery
… Our research focused on two rooms containing virtual agents and points of possible interaction: the lounge and the kitchen. In the lounge, a HIV/Aids support group was simulated while the kitchen contained two areas which presented nutritional informational support: Diet and Cleanliness & …
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Learning plan networks in conversational video games
… with humans in the home and workplace, and virtual agents collaborate with humans in games and training simulations. A representation of common ground for everyday scenarios is essential for these agents if they are to be effective collaborators and communicators. Effective collaborators can …
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XML-Based Agent Scripts and Inference Mechanisms
… dialogue. The recently developed ALICEbots, virtual agents with underlying AIML scripts, by A.L.I.C.E. foundation, use AIML scripts - a subset of XML - as the underlying pattern database for question answering. Their goal is to enable pattern-based, stimulus-response knowledge content to be …
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Applications in Neurorobotics
… in the real-world can be embedded in mobile agents creating complex patterns of activity believed to be a requirement for understanding higher-order neural function. On the other, the cognitive capabilities of humans remain unparalleled by artificial agents. Emulating biology is one strategy …
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Embodied multimodal referring expressions generation
… Despite advancements in AI, embodied interactive virtual agents (IVAs) are not equipped to intelligently mix modalities to communicate their intents as humans do, which hamstrings naturalistic multimodal IVA. We introduce SCMRE, a situated corpus of multimodal referring expressions (MREs) intended …
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Informed Planning and Safe Distributed Replanning under Physical Constraints
… applications, such as controlling robots or virtual agents in simulations and computer games. While there has been great progress over the last decades in solving high-dimensional geometric problems there are still many challenges that limit the capabilities of existing solutions. In …
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Embodied Pedagogical Agents: From Visual Impact to Pedagogical Implications
Embodied pedagogical agents – visually represented, computer generated characters in pedagogical roles, such as virtual instructors, mentors and learning companions – populate the digital society in increasing numbers. They are found in educational programmes from preschool to university, as well …
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The role of proximity in human-agent trust
… human trust and collaboration with embodied agents. As AI systems increasingly operate as social partners in virtual and mixed reality contexts, understanding the mechanisms that foster or erode trust becomes essential for designing effective and reliable human-agent relationships. Building …
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Developing artificial life simulations of vegetation to support the virtual reconstruction of ancient landscapes
Research in Virtual Heritage has gained popularity in recent years. Efforts by the community of Virtual Heritage researchers to reconstruct sites considered worthy of preservation span from the historical “built environment”, including the Pyramids at Ghiza and Virtual Reality Notre Dame, to …
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Combining search strategies for distributed constraint satisfaction.
… solved by an agent which cooperates with other agents to solve the overall problem. Algorithms for solving DisCSPs can be classified as either systematic or local search with the former being complete and the latter incomplete. The algorithms generally assume that each agent has only one …
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Investigating Simulation-Based Pattern Recognition Training For Behavior Cue Detection
… fundamental principles of Kim's game applied to virtual Simulation-Based Training. The virtual version of Kim's game contains customized scenarios for training behavior cue analysis. Virtual agents display kinesic cues that exhibit aggressive (i.e., slap hands and clench fist) and nervous …
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Evaluation of the implementation of a psychological behaviour change model to promote energy saving behaviour. Implementation of a mobile app with the virtual robotic head Floka
… the desired effects on the users' behaviour. The virtual agent Floka was integrated into the app as an interaction partner that is supposed to contribute to the app's persuasive effect through its socio-emotional expressiveness. In addition, various gamification elements support the motivation for …
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Not just a pretty (inter)face: A critical analysis of Microsoft's 'Ms. Dewey'
… was anthropomorphized as a sexy librarian virtual agent who performs search results in response to user queries. I explore how the Ms. Dewey search engine is gendered and racialized and, ultimately, how Ms. Dewey reveals specific assumptions about gender, race, and technology in the search …
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The persuasiveness of humanlike computer interfaces varies more through narrative characterization than through the uncanny valley
Just as physical appearance affects persuasion and compliance in human communication, it may also bias the processing of information from avatars, computer-animated characters, and other computer interfaces with faces. Although the most persuasive of these interfaces are often the most humanlike, …
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Avances en el estudio, diseño y evaluación de sistemas interactivos multimodales en escenarios de seguridad biométrica
… y habilidades emocionales de los agentes virtuales para diálogos de entrenamiento y verificación biométrica por voz. Para ello se propone un escenario de identificación biométrica vocal que simula las características de un dispositivo móvil y cuyo objeto es dar acceso a los usuarios a una …