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- keynoteJuly 2019
Let's Chat! Can Virtual Agents learn how to have a Conversation?
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 5–6https://doi.org/10.1145/3308532.3337712Intelligent virtual agents frequently engage the user in conversation. The underlying technology - often referred to as spoken dialogue systems - have experienced a revolution over the past decade, moving from being completely handcrafted to using data-...
- research-articleJuly 2019
An End-to-End Conversational Style Matching Agent
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 111–118https://doi.org/10.1145/3308532.3329473We present an end-to-end voice-based conversational agent that is able to engage in naturalistic multi-turn dialogue and align with the interlocutor's conversational style. The system uses a series of deep neural network components for speech ...
- research-articleJuly 2019
Analyzing Input and Output Representations for Speech-Driven Gesture Generation
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 97–104https://doi.org/10.1145/3308532.3329472This paper presents a novel framework for automatic speech-driven gesture generation, applicable to human-agent interaction including both virtual agents and robots. Specifically, we extend recent deep-learning-based, data-driven methods for speech-...
- research-articleJuly 2019
Assessing Common Errors Students Make When Negotiating
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 30–37https://doi.org/10.1145/3308532.3329470Research has shown that virtual agents can be effective tools for teaching negotiation. Virtual agents provide an opportuni-ty for students to practice their negotiation skills which leads to better outcomes. However, these negotiation training agents ...
- research-articleJuly 2019
Virtual Human Questionnaire for Analysis of Depression, Anxiety and Personality
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 81–87https://doi.org/10.1145/3308532.3329469Self-report questionnaires like PHQ-9 and GAD-7 are often used in the field of psychology to detect mental health problems and measure their severity. Their validity has been well established by a number of previous studies. However, most previous ...
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- research-articleJuly 2019
Being Touched by a Virtual Human.: Relationships Between Heart Rate, Gender, Social Status, and Compliance.
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 49–55https://doi.org/10.1145/3308532.3329467Interpersonal touch remains one of the most puzzling and challenging aspects of communication in virtual reality. A brief touch can be used to influence one's behavior. Our study aimed to analyze the influence of an agent's touch on men's compliance and ...
- research-articleJuly 2019
The Effects of Anthropomorphism and Non-verbal Social Behaviour in Virtual Assistants
- Dimosthenis Kontogiorgos,
- Andre Pereira,
- Olle Andersson,
- Marco Koivisto,
- Elena Gonzalez Rabal,
- Ville Vartiainen,
- Joakim Gustafson
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 133–140https://doi.org/10.1145/3308532.3329466The adoption of virtual assistants is growing at a rapid pace. However, these assistants are not optimised to simulate key social aspects of human conversational environments. Humans are intellectually biased toward social activity when facing ...
- research-articleJuly 2019
A Generic Machine Learning Based Approach for Addressee Detection In Multiparty Interaction
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 119–126https://doi.org/10.1145/3308532.3329462Addressee detection is one of the most fundamental tasks for seamless dialogue management and turn taking in human-agent interaction. Whereas addressee detection is implicit in dyadic interaction, it becomes a challenging task in multiparty interactions ...
- extended-abstractJuly 2019
Gesture Class Prediction by Recurrent Neural Network and Attention Mechanism
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 233–235https://doi.org/10.1145/3308532.3329458Our objective is to develop a machine-learning model that allows a virtual agent to automatically perform appropriate communicative gestures. Our first step is to compute when a gesture should be performed. We express this as classification problem. We ...
- extended-abstractJuly 2019
How Much Do You Perceive This?: An Analysis on Perceptions of Geometric Features, Personalities and Emotions in Virtual Humans
- Victor Araujo,
- Rodolfo Migon Favaretto,
- Paulo Knob,
- Soraia Raupp Musse,
- Felipe Vilanova,
- Angelo Brandelli Costa
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 179–181https://doi.org/10.1145/3308532.3329454This work aims to evaluate people's perception regarding geometric features, personalities and emotions characteristics in virtual humans. For this, we use as a basis, a dataset containing the tracking files of pedestrians captured from spontaneous ...
- extended-abstractJuly 2019
Time to Go ONLINE! A Modular Framework for Building Internet-based Socially Interactive Agents
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 227–229https://doi.org/10.1145/3308532.3329452Although socially interactive agents have emerged as a new metaphor for human-computer interaction, they are, to date, absent from the Internet. We describe the design choices, implementation, and challenges in building EEVA, the first fully integrated ...
- extended-abstractJuly 2019
Belief-based Agent Explanations to Encourage Behaviour Change
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 176–178https://doi.org/10.1145/3308532.3329444Explainable? virtual agents provide insight into the agent's decision-making process, which aims to improve the user's acceptance of the agent's actions or recommendations. However, explainable agents commonly rely on their own knowledge and goals in ...
- extended-abstractJuly 2019
Interdisciplinary Collaboration and Establishment of Requirements for a 3D Interactive Virtual Training for Teachers
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 185–187https://doi.org/10.1145/3308532.3329439Simulation-based training systems have proven effective in a variety of domains, both for facilitating the learning of skills as well for applying this knowledge to real life. Although difficulties managing students' disruptive behavior in classrooms ...
- extended-abstractJuly 2019
An Expert-Model & Machine Learning Hybrid Approach to Predicting Human-Agent Negotiation Outcomes
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 212–214https://doi.org/10.1145/3308532.3329433We present the results of a machine-learning approach to the analysis of several human-agent negotiation studies. By combining expert knowledge of negotiating behavior compiled over a series of empirical studies with neural networks, we show that a ...
- extended-abstractJuly 2019
Framework for Authoring Repeatable Scenarios in Virtual Environments Populated with Stochastic Virtual Agents
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 221–223https://doi.org/10.1145/3308532.3329432Virtual Environments (VEs) are used extensively for training systems because of their ability to provide interactive experiences. Effective use of such environments requires the ability to generate consistent scenarios, which involve one or more ...
- extended-abstractJuly 2019
Simulating Visual Acuity for Autonomous Agent: A Data-Driven Approach
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 194–196https://doi.org/10.1145/3308532.3329428The system that links intelligent agents to their world is their synthetic senses, allowing them to perceive and interact with the world around them. How such a system is modelled is important since an agent uses the data generated by its synthetic ...
- extended-abstractJuly 2019
Evaluating Temporal Predictive Features for Virtual Patients Feedbacks
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 88–90https://doi.org/10.1145/3308532.3329426In the intelligent virtual agent domain, several machine learning models have been proposed to automatically determine the feedbacks of virtual agents during an interaction, using human-human interaction datasets as training corpora and most commonly ...
- extended-abstractJuly 2019
Evaluating the Effect of Clothing and Environment on the perceived Personality of Virtual Avatars
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 206–208https://doi.org/10.1145/3308532.3329425Virtual avatars gain more and more importance in our everyday lives, especially in the field of human machine interaction and affective interfaces. The avatar can be used as a virtual surrogate to answer questions in online costumer support applications,...
- extended-abstractJuly 2019
Bringing Video Game Characters into the Real World on a Holographic Light Field Display
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 173–175https://doi.org/10.1145/3308532.3329423This paper discusses the design and technical choices of a proof of concept migrating video game character that can move from a game environment to a holographic environment rendered on a novel holographic light field display. We pair these two ...
- extended-abstractJuly 2019
What are We Measuring Anyway?: - A Literature Survey of Questionnaires Used in Studies Reported in the Intelligent Virtual Agent Conferences
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsJuly 2019, Pages 159–161https://doi.org/10.1145/3308532.3329421Research into artificial social agents aims at constructing these agents and at establishing an empirically grounded understanding of them, their interaction with humans, and how they can ultimately deliver certain outcomes in areas such as health, ...