------------------------------------------------------------------------------ *ACM SUI 2023* The 11th ACM International Symposium on Spatial User Interaction SYDNEY, AUSTRALIA OCTOBER 13—15, 2023 https://sui.acm.org/2023/ ------------------------------------------------------------------------------- * Call for Participation * We invite you to join us at SUI 2023 in Sydney from Oct 13-15, 2023! The eraly bird registration is due in 5 days, Sept 10, 2023: https://sui.acm.org/2023/attending ACM SUI brings together top researchers and practitioners from around the world who focus on spatial interaction for Virtual Reality, Augmented Reality, Mixed Reality, and for ubiquitous, intelligent/smart and real environments. SUI is a premier venue for presenting research on the design and use of technologies that focus on the challenges of interacting with the volumetric, 3D space we live in. ACM SUI 2023 is the 11th edition of the Symposium on Spatial User Interaction. We warmly welcome you to join us in this premier international forum for sharing exciting new research and development in the field while meeting your peers and enjoying the beautiful Sydney! *Registration*: https://sui.acm.org/2023/attending *Program*: https://sui.acm.org/2023/program *Keynote speakers*: Professor Tim Dwyer, Professor Kiyoshi Kiyokawa and Professor Misha Sra: https://sui.acm.org/2023/keynote *Two journal special issues*: Journal on Multimodal User Interfaces (SCI indexed, impact factor:1.694): https://www.springer.com/journal/12193 Computers & Graphics (SCI indexed, impact factor:1.821): https://www.sciencedirect.com/journal/computers-and-graphics *TOPICS* All topics that are directly or indirectly relevant to spatial user interactions and interfaces are welcome. Topics of interest include, but are not limited to: Design practices, principles and frameworks Interaction design, usability and user experience (UX) User interface metaphors Evaluation methodologies and metrics Perception and cognition Human factors and ergonomics Ethical, social, cultural and language factors Inclusion and accessibility Privacy and security Empathy, trust, acceptance and safety Interactive spatial computer graphics Spatial input devices and technology Haptics, spatial audio, touch, tangible, gesture based spatial interactions and interfaces Multimodal/multisensory and other novel forms of spatial interaction and perception Spatial interaction with data, virtual humans and avatars Distributed, multi-user and collaborative spatial interaction Immersive analytics and visualisation Intelligent spatial interfaces, interaction and collaboration User adaptive spatial interaction and personalization Applications of human spatial perception to interaction Applications of spatial UIs, such as games, entertainment, CAD, education, health, engineering Best regards Tony Huang & Misha Sra ACM SUI'2023 general co-chairs