Proceedings of the 19th ACM International Conference on Intelligent Virtual Agents最新文献_第2页

Towards a Conversational Interface for Authoring Intelligent Virtual Characters 面向智能虚拟人物创作的对话界面

Proceedings of the 19th ACM International Conference on Intelligent Virtual Agents Pub Date : 2019-07-01 DOI: 10.1145/3308532.3329431

Xinyi Wang, Samuel S. Sohn, Mubbasir Kapadia

{"title":"Towards a Conversational Interface for Authoring Intelligent Virtual Characters","authors":"Xinyi Wang, Samuel S. Sohn, Mubbasir Kapadia","doi":"10.1145/3308532.3329431","DOIUrl":"https://doi.org/10.1145/3308532.3329431","url":null,"abstract":"The collaboration between creatives and domain architects is crucial for bringing virtual characters to life. Domain architects are technical experts who are tasked with formally designing intelligent virtual characters' domain knowledge, which is a symbolic representation of knowledge that the character uses to reason over its interactions with other agents. In the context of this work, domain knowledge encompasses the mental modeling of the character. Although the creation of interactive narratives requires substantial engineering expertise, it is also necessary to pick the brains of writers, artists, and animators alike to give the characters a boost of peculiarities. This intrinsically collaborative and interdisciplinary process brings about the challenge of bridging different mindsets and workflows in an efficient and effective way. The conventional authoring process for virtual characters is heavily driven by engineering needs (shown in Figure 1a). This process burdens creative authors with inconsistent and cumbersome tasks, leaving little room for imagination and improvisation. As the intelligent system goes through updates, creatives are forced to adjust to new tools and take on new tasks in order to satisfy demands for creative input. Inconsistency and the lack of formality result in ineffective communication, repetitive tasks, underused data, and consequently, content of compromised quality","PeriodicalId":112642,"journal":{"name":"Proceedings of the 19th ACM International Conference on Intelligent Virtual Agents","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121125599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Simulating Visual Acuity for Autonomous Agent: A Data-Driven Approach 自主智能体视觉敏锐度模拟:数据驱动方法

Proceedings of the 19th ACM International Conference on Intelligent Virtual Agents Pub Date : 2019-07-01 DOI: 10.1145/3308532.3329428

Nicholas Hoyte, Curtis L Gittens, M. Katchabaw

引用次数: 0

Belief-based Agent Explanations to Encourage Behaviour Change 鼓励行为改变的基于信念的代理解释

Proceedings of the 19th ACM International Conference on Intelligent Virtual Agents Pub Date : 2019-07-01 DOI: 10.1145/3308532.3329444

Amal Abdulrahman, Deborah Richards, Hedieh Ranjbartabar, S. Mascarenhas

{"title":"Belief-based Agent Explanations to Encourage Behaviour Change","authors":"Amal Abdulrahman, Deborah Richards, Hedieh Ranjbartabar, S. Mascarenhas","doi":"10.1145/3308532.3329444","DOIUrl":"https://doi.org/10.1145/3308532.3329444","url":null,"abstract":"Explainable? 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 providing explanations, rather than the beliefs, plans or goals of the user. Little is known about the user perception of such tailored explanations and their impact on their behaviour change. In this paper, we explore the role of belief-based explanation by proposing a user-aware explainable agent by embedding the cognitive agent architecture with a user model and explanation engine to provide a tailored explanation. To make a clear conclusion on the role of explanation in behaviour change intentions, we investigated whether the level of behaviour change intentions is due to building agent-user rapport through the use of empathic language or due to trusting the agent's understanding through providing explanation. Hence, we designed two versions of a virtual advisor agent, empathic and neutral, to reduce study stress among university students and measured students' rapport levels and intentions to change their behaviour. Our results showed that the agent could build a trusted relationship with the user with the help of the explanation regardless of the level of rapport. The results, further, showed that nearly all the recommendations provided by the agent highly significantly increased the intention of the user to change their behavior.","PeriodicalId":112642,"journal":{"name":"Proceedings of the 19th ACM International Conference on Intelligent Virtual Agents","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131202146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Gesture Class Prediction by Recurrent Neural Network and Attention Mechanism 基于递归神经网络和注意机制的手势类预测

Proceedings of the 19th ACM International Conference on Intelligent Virtual Agents Pub Date : 2019-07-01 DOI: 10.1145/3308532.3329458

Fajrian Yunus, C. Clavel, C. Pelachaud

引用次数: 7

Influence of Directivity on the Perception of Embodied Conversational Agents' Speech 指向性对具身会话主体言语感知的影响

Proceedings of the 19th ACM International Conference on Intelligent Virtual Agents Pub Date : 2019-07-01 DOI: 10.1145/3308532.3329434

J. Wendt, B. Weyers, J. Stienen, A. Bönsch, M. Vorländer, T. Kuhlen

{"title":"Influence of Directivity on the Perception of Embodied Conversational Agents' Speech","authors":"J. Wendt, B. Weyers, J. Stienen, A. Bönsch, M. Vorländer, T. Kuhlen","doi":"10.1145/3308532.3329434","DOIUrl":"https://doi.org/10.1145/3308532.3329434","url":null,"abstract":"Embodied conversational agents become more and more important in various virtual reality applications, e.g., as peers, trainers or therapists. Besides their appearance and behavior, appropriate speech is required for them to be perceived as human-like and realistic. Additionally to the used voice signal, also its auralization in the immersive virtual environment has to be believable. Therefore, we investigated the effect of adding directivity to the speech sound source. Directivity simulates the orientation dependent auralization with regard to the agent's head orientation. We performed a one-factorial user study with two levels (n=35) to investigate the effect directivity has on the perceived social presence and realism of the agent's voice. Our results do not indicate any significant effects regarding directivity on both variables covered. We account this partly to an overall too low realism of the virtual agent, a not overly social utilized scenario and generally high variance of the examined measures. These results are critically discussed and potential further research questions and study designs are identified.","PeriodicalId":112642,"journal":{"name":"Proceedings of the 19th ACM International Conference on Intelligent Virtual Agents","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115880774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

How do Leaders Perceive Stress and Followership from Nonverbal Behaviors Displayed by Virtual Followers? 领导者如何从虚拟追随者的非语言行为中感知压力和追随?

Proceedings of the 19th ACM International Conference on Intelligent Virtual Agents Pub Date : 2019-07-01 DOI: 10.1145/3308532.3329468

Guillaume Demary, Jean-Claude Martin, S. Dubourdieu, S. Travers, Virginie Demulier

引用次数: 2

Animating Virtual Signers: The Issue of Gestural Anonymization 动画虚拟签名者:手势匿名化问题

Proceedings of the 19th ACM International Conference on Intelligent Virtual Agents Pub Date : 2019-07-01 DOI: 10.1145/3308532.3329410

Félix Bigand, E. Prigent, Annelies Braffort

引用次数: 1

Modelling Therapeutic Alliance using a User-aware Explainable Embodied Conversational Agent to Promote Treatment Adherence 使用用户感知可解释的具身会话代理对治疗联盟进行建模以促进治疗依从性

Proceedings of the 19th ACM International Conference on Intelligent Virtual Agents Pub Date : 2019-07-01 DOI: 10.1145/3308532.3329413

Amal Abdulrahman, Deborah Richards

{"title":"Modelling Therapeutic Alliance using a User-aware Explainable Embodied Conversational Agent to Promote Treatment Adherence","authors":"Amal Abdulrahman, Deborah Richards","doi":"10.1145/3308532.3329413","DOIUrl":"https://doi.org/10.1145/3308532.3329413","url":null,"abstract":"Non-adherence to a treatment plan recommended by the therapist is a key cause of the increasing rate of chronic medical conditions globally. The therapist-patient therapeutic alliance is regarded as a successful intervention and a good predictor of treatment adherence. Similar to the human scenario, embodied conversational agents (ECAs) showed evidence of their ability to build an agent-patient therapeutic alliance, which motivates the effort to advance ECAs as a potential solution to improve treatment adherence and consequently the health outcome. Building therapeutic alliance implies the need for a positive environment where the ECA and the patient can share their knowledge and discuss their goals, preferences and tasks towards building a shared plan, which is commonly done using explanations. However, explainable agents commonly rely on their own knowledge and goals in providing explanations, rather than the beliefs, plans or goals of the user. It is not clear whether such explanations, in individual-specific contexts such as personal health assistance, are perceived by the user as relevant in decision-making towards their own behavior change. Therefore, in this research, we are developing a user-aware explainable ECA by embedding the cognitive agent architecture with a user model, explanation engine and modified planner to implement the concept of SharedPlans. The developed agent will be deployed and evaluated with real patients and the therapeutic alliance will be measured using standard measurements.","PeriodicalId":112642,"journal":{"name":"Proceedings of the 19th ACM International Conference on Intelligent Virtual Agents","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117057049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Expressive Virtual Human: Impact of expressive wrinkles and pupillary size on emotion recognition 表情虚拟人:表情皱纹和瞳孔大小对情绪识别的影响

Proceedings of the 19th ACM International Conference on Intelligent Virtual Agents Pub Date : 2019-07-01 DOI: 10.1145/3308532.3329446

Anne-Sophie Milcent, Erik Geslin, Abdelmajid Kadri, S. Richir

引用次数: 10

Evaluating Temporal Predictive Features for Virtual Patients Feedbacks 评估虚拟患者反馈的时间预测特征

Proceedings of the 19th ACM International Conference on Intelligent Virtual Agents Pub Date : 2019-07-01 DOI: 10.1145/3308532.3329426

B. Penteado, M. Ochs, R. Bertrand, P. Blache

引用次数: 4