Full-day workshop at ACM IUI 2027 · Helsinki, Finland

Human–AI Interaction and Technology-Mediated Human Representation in eXtended Reality

MixHAI-XR explores how Artificial Intelligence (AI) is changing the way humans are represented, from realistic replicas and human digital twins to agents that combine traits of different people. Extended Reality (XR) is the central interaction paradigm through which people meet, embody, and collaborate with these representations.

Submit a paper Call for Papers Important Dates

Submission deadline: Nov 9, 2026 (AoE) · ACM IUI 2027, Feb 8–11, 2027

Status: The submission portal opens once the IUI 2027 workshop track is configured. All dates follow the official IUI 2027 workshop schedule.

About the workshop

From human representation to immersive interaction

As generative AI, digital twins, avatars, personalized agents, XR, spatial computing, and multimodal sensing converge, identities, roles, bodies, voices, behaviors, and expertise can be captured, reconstructed, embodied, adapted, and negotiated. Immersive systems are no longer only environments in which interaction takes place: they become intelligent spaces in which people meet, embody, and collaborate with representations of humans and AI.

The workshop is organized around a unifying research question: How should intelligent immersive interfaces represent humans and AI, and how can people understand, control, evaluate, and collaborate with these representations?

MixHAI-XR brings together researchers and practitioners working on human-AI interaction, XR, embodied agents, mixed identities, digital human representations, human factors, ethics, accessibility, design, and evaluation.

Two perspectives

A continuum of representations, experienced in XR

The workshop first establishes a shared continuum of technology-mediated human representation and then applies it to XR.

1 · The continuum

Technology-mediated human representation

AI can capture, reconstruct, and animate a person's appearance, voice, behavior, and expertise. The resulting representations span a continuum: from realistic replicas and human digital twins of one person to agents that combine traits of different people.

Realistic replicasdigital twins and clones of one person Composite agentscombining traits of different people

Along the continuum, three questions recur:

  • Who controls a representation?
  • What is modelled, and what is omitted?
  • Who is accountable for its actions?

2 · Extended Reality

XR as a central interaction paradigm

XR lets people meet, embody, and collaborate with digital humans and AI agents in shared space. Spatial computing and multimodal sensing make gaze, gesture, voice, and presence part of the interaction, and part of the representation.

In the afternoon, the workshop applies the continuum to XR through:

  • Demos of XR prototypes and systems
  • Applied breakouts on XR scenarios
  • A framework linking the continuum to XR interaction and evaluation

XR is the workshop's main lens, not the boundary of its scope: contributions on non-immersive representations are also welcome.

Topics of interest

Four themes for contributions

Contributions may address any point on the continuum, in XR or beyond. Submissions need not fit a single theme, and closely related topics are welcome.

The continuum of technology-mediated human representation

Realistic replicas, human digital twins, digital clones, avatars, personalized agents, expert representations, and composite agents that combine traits of different people, including 3D capture, voice synthesis, and identity fidelity.

Agency, control, and responsible augmentation

Who controls a representation, what is modelled or omitted, and who is accountable for its actions: perceived control, explainability, consent, authorship, provenance, and attribution, as well as overreliance, offloading, manipulation, and privacy.

Embodied and multimodal interaction in XR

Immersive interaction with digital humans, LLMs, conversational agents, decision-support tools, and adaptive services, including speech, gesture, gaze, haptics, spatial cues, and physiological sensing.

Evaluation, collaboration, and application domains

Cognitive load, trust, acceptance, accessibility, and social acceptability in single- and multi-user XR, studied in areas such as healthcare, education, industrial training, and cultural heritage.

Key dates

Important deadlines

All deadlines are Anywhere on Earth (AoE) and follow the official ACM IUI 2027 workshop schedule.

Nov 9, 2026Workshop paper submission deadline
Dec 7, 2026Author notification
Dec 21, 2026Camera-ready deadline
Feb 8–11, 2027ACM IUI 2027, Helsinki Congress Paasitorni (workshop day TBA)

Call for papers

Who should submit?

We invite researchers, designers, engineers, and practitioners working on technology-mediated human representation, from human digital twins and avatars to personalized and composite agents, and on how people interact with these representations in XR and beyond, including embodied AI, mixed identities, and responsible human-AI interaction.

Submissions may include empirical studies, conceptual frameworks, position papers, design methods, prototypes, system descriptions, evaluation approaches, and domain-specific applications. Authors are encouraged to submit work that opens discussion, identifies challenges, or proposes new ways to connect interaction design with technology-mediated representation, for example by locating a representation on the continuum or examining how it is experienced in XR.

Submission information

Submission and review

Submit your paper

The portal opens once the IUI 2027 workshop track is configured. Deadline: Nov 9, 2026 (AoE).

Submission link TBA

Paper format

Authors should prepare a Regular or Short paper. Regular papers are at least 10 "standard" pages and short papers at least 5 pages (5-9 "standard" pages without references).

Review process

All submissions will be peer-reviewed by the workshop program committee. Acceptance will be based on relevance, quality, originality, clarity, and potential to stimulate discussion.

Proceedings

Accepted workshop papers are expected to be included in the joint IUI 2027 workshop proceedings published at CEUR-WS.org

Tentative program

Full-day format: first the continuum, then XR

The morning establishes the continuum of technology-mediated human representation; the afternoon applies it to XR.

Part I

Establishing the continuum

09:00–09:20

Welcome and framing · introducing the continuum and the two parts of the day.

09:20–10:00

Invited keynote · digital humans, embodied AI, and responsible representation.

10:00–11:00

Research session · accepted papers, positioned along the continuum.

11:15–12:15

Continuum studio · mapping representations onto the continuum: who controls them, what is modelled or omitted, and who is accountable.

Part II

Applying the continuum to XR

13:15–14:00

Demo and project showcase · XR prototypes and systems from accepted contributions.

14:00–15:15

Applied breakouts · XR scenarios examined through agency and identity control, authenticity and explainability, augmentation and dependence, and social and ethical governance.

15:30–16:20

Framework consolidation · connecting the continuum with the interaction and evaluation dimensions of intelligent XR interfaces.

16:20–17:00

Roadmap and closing · research agenda, collaboration planning, and next steps.

Planned outcomes

A shared research agenda for intelligent immersive representations

The workshop aims to produce a preliminary integrated framework that connects the continuum of technology-mediated human representation with the interaction and evaluation dimensions of intelligent XR interfaces. Concrete outputs will include a workshop summary, a structured map of design and evaluation dimensions, and a prioritized research roadmap supporting follow-up collaborations and joint publications.

Organizers

Organizing committee

Program committee

Tentative program committee

TBD

Contact

Questions?

For questions about the workshop scope, submissions, or participation, please contact Jan Henry Belz and Giuseppe Caggianese on behalf of the organizing committee.

Email the organizers Visit ACM IUI 2027