Sophie Jörg

An AI-Driven Virtual Patient for Breaking Bad News: An Expert Formative Study on Facial Expression Intensity

Steffen Hauck, Theresa Schell, Sophie Jörg, Jens Grubert

Interactive virtual patients driven by large language models (LLMs) offer scalable solutions for medical communication training, such as breaking bad news. However, designing their emotional expressiveness remains a challenge. This paper presents an AI-driven virtual patient framework combining LLM dialogue with real-time …

An AI-Driven Virtual Patient for Breaking Bad News: An Expert Formative Study on Facial Expression Intensity

Steffen Hauck, Theresa Schell, Sophie Jörg, Jens Grubert

Interactive virtual patients driven by large language models (LLMs) offer scalable solutions for medical communication training, such as breaking bad news. However, designing their emotional expressiveness remains a challenge. This paper presents an AI-driven virtual patient framework combining LLM dialogue with real-time …

Behavioral and Perceptual Responses to 3D Character and Volumetric Avatars Under Conflicting Guidance in Mixed Reality

Luís Fernando de Souza Cardoso, Andy Schleising, Tobias Schwandt, Sophie Jörg et autres

In Mixed Reality (MR), in-the-moment guidance can support physical tasks under time and attention constraints. In contexts where such guidance is embodied, users must rapidly evaluate whether to trust and follow an advisor’s recommendations. Prior work has examined how avatar representation shapes …

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Mobile Augmented Reality Indoor Navigation with DWC: Multi-Floor Deployment and Usability Evidence

Soroush Rad, Mohammad Mohebbi, Sophie Jörg

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Data-driven and Procedural Dual-hand Motion Synthesis for Virtual Guitar Playing in Real-time

Ryan Canales, Sophie Jörg

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Real-time Hand Motion Synthesis for Playing a Virtual Guitar

Ryan Canales, Sophie Jörg

Concerts and performances in virtual reality are becoming increasingly popular. Accurately visualizing the detailed hand motions of musicians playing instruments is challenging. In this work, we present a real-time motion synthesis method that generates the detailed fretting hand motion for playing guitar. …

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Behavioral and Symbolic Fillers as Delay Mitigation for Embodied Conversational Agents in Virtual Reality

Snehanjali Kalamkar, Sophie Jörg, Jens Grubert

When communicating with embodied conversational agents (ECAs) in virtual reality, there might be delays in the responses of the agents lasting several seconds, for example, due to more extensive computations of the answers when large language models are used. Such delays might …

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Behavioral and Symbolic Fillers as Delay Mitigation for Embodied Conversational Agents in Virtual Reality

Snehanjali Kalamkar, Sophie Jörg, Jens Grubert

When communicating with embodied conversational agents (ECAs) in virtual reality, there might be delays in the responses of the agents lasting several seconds, for example, due to more extensive computations of the answers when large language models are used. Such delays might …

Does Hand Size Matter? The Effect of Avatar Hand Size on Non-verbal Communication in Virtual Reality

Jackson Henry, Ryan Canales, Catherine Stolarski, Alex Adkins et autres

Virtual reality (VR) has increasingly become a popular platform for socializing and collaborating remotely because it enables both verbal and nonverbal aspects of communication through the use of embodied avatars. However, such avatars are not typically adjusted to match the proportions of …

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User identification based on conversational gestures

Aline Normoyle, Sophie Jörg

Virtual reality relies on tracking to provide users with a compelling and comfortable experience. However, such VR tracking increases the amount of data we generate about ourselves when online. In this work, we investigate the extent to which social gestures can be …

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Hands or Controllers? How Input Devices and Audio Impact Collaborative Virtual Reality

Alex Adkins, Ryan Canales, Sophie Jörg

Advancing virtual reality technologies are enabling real-time virtual-face to virtual-face communication. Hand tracking systems that are integrated into Head-Mounted Displays (HMD) enable users to directly interact with their environments and with each other using their hands as opposed to using controllers. Due …

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The Curation Tree: A Lightweight Behavior Tree Framework for Implementing Puzzle and Narrative Games

Aline Normoyle, Sophie Jörg, Jennifer Hill

In this work, we describe the Curation Tree framework that has matured as part of our game-based research and teaching. We use this framework to manage the top-level experience of our players via a text-based, authorable behavior tree system that is easy …

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