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Proceedings of the 2025 CHI Conference on human Factors in Computing Systems

作者： Vikram Mohanty Jude Lim Kurt Luther Human-Computer Interaction Institute Carnegie Mellon University Pittsburgh Pennsylvania USA Independent Researcher Arlington Virginia USA Department of Computer Science & Center for Human-Computer Interaction Virginia Tech Alexandria Virginia USA

ISBN: (纸本)9798400713941

AI models are constantly evolving, with new versions released frequently. human-AI interaction guidelines encourage notifying users about changes in model capabilities, ideally supported by thorough benchmarking. However, as AI systems integrate into domain-specific workflows, exhaustive benchmarking can become impractical, often resulting in silent or minimally communicated updates. This raises critical questions: Can users notice these updates? What cues do they rely on to distinguish between models? How do such changes affect their behavior and task performance? We address these questions through two studies in the context of facial recognition for historical photo identification: an online experiment examining users' ability to detect model updates, followed by a diary study exploring perceptions in a real-world deployment. Our findings highlight challenges in noticing AI model updates, their impact on downstream user behavior and performance, and how they lead users to develop divergent folk theories. Drawing on these insights, we discuss strategies for effectively communicating model updates in AI-infused systems. © 2025 Copyright held by the owner/author(s).

关键词： AI Model Updates

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Sign Language Machine Translation and the Sign Language Lexicon: A Linguistically Informed Approach 15

Sign Language Machine Translation and the Sign Language Lexi...

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15th Conference of the Association for Machine Translation in the Americas, AMTA 2022

作者： Murtagh, Irene Nogales, Víctor Ubieto Blat, Josep Department of Informatics TU Dublin Ireland Departament de Tecnologies de la Informació i les Comunicacions Human-Computer Interaction Graphics and Educational Technologies

Natural language processing and the machine translation of spoken language (speech/text) has benefitted from significant scientific research and development in recent times, rapidly advancing the field. On the other hand, computational processing and modelling of signed language has unfortunately not garnered nearly as much interest, with sign languages generally being excluded from modern language technologies. Many deaf and hard-of-hearing individuals use sign language on a daily basis as their first language. For the estimated 72 million deaf people in the world, the exclusion of sign languages from modern natural language processing and machine translation technology, aggravates further the communication barrier that already exists for deaf and hard-of-hearing individuals. This research leverages a linguistically informed approach to the processing and modelling of signed language. We outline current challenges for sign language machine translation from both a linguistic and a technical prespective. We provide an account of our work in progress in the development of sign language lexicon entries and sign language lexeme repository entries for SLMT. We leverage Role and Reference Grammar together with the Sign_A computational framework within this development. We provide an XML description for Sign_A, which is utilised to document SL lexicon entries together with SL lexeme repository entries. This XML description is also leveraged in the development of an extension to Bahavioural Markup Language, which will be used within this development to link the divide between the sign language lexicon and the avatar animation interface. © AMTA 2022 - 15th Conference of the Association for Machine Translation in the Americas, Proceedings.

关键词： Modeling languages

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Am I the Odd One? Exploring (In)Congruencies in the Realism of Avatars and Virtual Others in Virtual Reality

arXiv

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arXiv 2024年

作者： Mal, David Döllinger, Nina Wolf, Erik Wenninger, Stephan Botsch, Mario Wienrich, Carolin Latoschik, Marc Erich Human-Computer Interaction Group University of Würzburg Würzburg Germany Psychology of Intelligent Interactive Systems Group University of Würzburg Würzburg Germany Human-Computer Interaction Universität Hamburg Hamburg Germany Computer Graphics Group TU Dortmund University Dortmund Germany

Virtual humans play a pivotal role in social virtual environments, shaping users' VR experiences. The diversity in available options and users' individual preferences can result in a heterogeneous mix of appearances among a group of virtual humans. The resulting variety in higher-order anthropomorphic and realistic cues introduces multiple (in)congruencies, eventually impacting the plausibility of the experience. However, related work investigating the effects of being co-located with multiple virtual humans of different appearances remains limited. In this work, we consider the impact of (in)congruencies in the realism of a group of virtual humans, including co-located others (agents) and one's self-representation (self-avatar), on users' individual VR experiences. In a 2×3 mixed design, participants embodied either (1) a personalized realistic or (2) a customized stylized self-avatar across three consecutive VR exposures in which they were accompanied by a group of virtual others being either (1) all realistic, (2) all stylized, or (3) mixed between stylized and realistic. Our results indicate groups of virtual others of higher realism, i.e., potentially more congruent with participants' real-world experiences and expectations, were considered more human-like, increasing the feeling of co-presence and the impression of interaction possibilities. (In)congruencies concerning the homogeneity of the group did not cause considerable effects. Furthermore, our results indicate that a self-avatar's congruence with the participant's real-world experiences concerning their own physical body yielded notable benefits for virtual body ownership and self-identification for realistic personalized avatars. Notably, the incongruence between a stylized self-avatar and a group of realistic virtual others resulted in diminished ratings of self-location and self-identification. This suggests that higher-order (in)congruent visual cues that are not within the ego-central referential fr

关键词： Virtual reality

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RAMBO — Robotic Anthropomorphic Manipulator for Bimanual Operations

RAMBO — Robotic Anthropomorphic Manipulator for Bimanual Op...

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IEEE International Conference on Autonomous Robot Systems and Competitions (ICARSC)

作者： Nuno Ribeiro Luís Louro Paulo Vicente Pedro Ribeiro Daniel Rodrigues Pedro Dias Emanuel Sousa Sérgio Monteiro Estela Bicho Industrial Electronics Dept ALGORITMI Center University of Minho Guimarães Portugal Center for Computer Graphics Human-Technology Interaction and Robotics Dept University of Minho Guimarães Portugal

ISBN: (数字)9798350352344

ISBN: (纸本)9798350352351

This paper presents the development of an anthropomorphic robot designed for collaborative research alongside the Kuka LBR iiwa R820 robotic arm for the research project I-CATER. The primary objectives were designing a robust and stable robot's structure, integrating hardware using the Robot Operating System (ROS), and developing a user- friendly human-Machine Interface. Priority was set on ensuring the structure could support two robotic arms without compromising stability or functionality. Key components include 7 Degrees of Freedom (DoF) robotic arms, Rg2 grippers, a display and a 2 DoF neck for the vision system support, resembling the human head configuration. Considerations such as size, cost, fabrication techniques, and material availability were taken into account in the structure's design. Integration into a simplified interface allows for easy manipulation without advanced programming knowledge, facilitated by the middleware ROS for modularity and future upgrades. The outcome is RAMBO - a Robotic Anthropomorphic Manipulator for Bimanual Operations - which is a valuable research platform for natural human-robot collaboration.

关键词： Torso Operating systems Machine vision Collaboration Manipulators Solids Stability analysis

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Resize Me! Exploring the User Experience of Embodied Realistic Modulatable Avatars for Body Image Intervention in Virtual Reality

arXiv

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arXiv 2022年

作者： Döllinger, Nina Wolf, Erik Mal, David Wenninger, Stephan Botsch, Mario Latoschik, Marc Erich Wienrich, Carolin Human-Technology-Systems Group University of Würzburg Würzburg Germany Human-Computer Interaction Group University of Würzburg Würzburg Germany Computer Graphics Group TU Dortmund University Dortmund Germany

Obesity is a serious disease that can affect both physical and psychological well-being. Due to weight stigmatization, many affected individuals suffer from body image disturbances whereby they perceive their body in a distorted way, evaluate it negatively, or neglect it. Beyond established interventions such as mirror exposure, recent advancements aim to complement body image treatments by the embodiment of visually altered virtual bodies in virtual reality (VR). We present a high-fidelity prototype of an advanced VR system that allows users to embody a rapidly generated personalized, photorealistic avatar and to realistically modulate its body weight in real-time within a carefully designed virtual environment. In a formative multi-method approach, a total of 12 participants rated the general user experience (UX) of our system during body scan and VR experience using semi-structured qualitative interviews and multiple quantitative UX measures. By using body weight modification tasks, we further compared three different interaction methods for real-time body weight modification and measured our system’s impact on the body image relevant measures body awareness and body weight perception. From the feedback received, demonstrating an already solid UX of our overall system and providing constructive input for further improvement, we derived a set of design guidelines to guide future development and evaluation processes of systems supporting body image interventions. © 2022, CC BY.

关键词： Virtual reality

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The Role of Expertise in Effectively Moderating Harmful Social Media Content 25

The Role of Expertise in Effectively Moderating Harmful Soci...

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Proceedings of the 2025 CHI Conference on human Factors in Computing Systems

作者： Nuredin Ali Abdelkadir Tianling Yang Shivani Kapania Meron Estefanos Fasica Berhane Gebrekidan Zecharias Zelalem Messai Ali Rishan Berhe Dylan Baker Zeerak Talat Milagros Miceli Alex Hanna Timnit Gebru Computer Science and Engineering University of Minnesota Minneapolis Minnesota USA and The Distributed AI Research Institute Minneapolis Minnesota USA Weizenbaum Institute Technische Universität Berlin Berlin Germany Human-Computer Interaction Institute Carnegie Mellon University Pittsburgh Pennsylvania USA The Distributed AI Research Institute Stockholm Sweden Independent Researcher Nairobi Kenya Freelance Journalist Montreal Quebec Canada Independent Researcher Stockholm Sweden Independent Researcher New York New York USA The Distributed AI Research Institute Seattle Washington USA University of Edinburgh Edinburgh United Kingdom The Distributed AI Research Institute Berlin Germany and Weizenbaum Institute Technische Universität Berlin Berlin Germany The Distributed AI Research Institute Oakland California USA

ISBN: (纸本)9798400713941

Social media platforms played a significant role in spreading genocidal content in the 2020-2022 Tigray war, where the deadliest genocide of the 21st century was committed. While linguistic expertise is clearly needed to adequately moderate such content, we ask: What additional expertise is needed? Why and to what extent do experts disagree on what constitutes harmful content, and what is the best way to resolve these disagreements? What do social media platforms do instead? We examine these questions through a 4-month study with 7 experts labeling 340 X (formerly Twitter) posts, and by interviewing 15 commercial content moderators. We find in-depth cultural knowledge and dialects to be most important for accurate hate speech annotation - knowledge which social media platforms do not prioritize. Even amongst experts, disagreements are high (71%), dropping to 40% after deliberation meetings. Based on these results, we present 7 recommendations to improve hate speech annotation and moderation practices. © 2025 Copyright held by the owner/author(s). Publication rights licensed to ACM.

关键词： Expertise

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‘It's Not Just about the Patient’: A ‘360° Feedback’ Ethnography of Chronic Care Knowledge Generation

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Ethnographic Praxis in Industry Conference Proceedings 2016年第1期2016卷 328-347页

作者： JYOTIRMAYA MAHAPATRA NIMMI RANGASWAMY SAJAL NAGWANSHI Works in the field of Human Computer Interaction. He currently works as Research Engineer with the focus on User Experience Design of various products. Senior Researcher at the Xerox Research Centre India Bangalore. Xerox Research Centre India Bengaluru

The paper attempts to offer a method to consistently monitor and capture a data eco-system in the everyday of a patient-caregiver relationship. We offer an account of the capture and intermeshing of different types and quality of data sources and their gainful deflection into a methodological protocol for ethnographic engagements. We call this the ‘360° feedback’ ethnography and elaborate its underlying methodological process in this paper. Building on the live feedback obtained from various stakeholder activities in a care ecosystem, we propose how a 360° feedback can enrich regenerative knowledge.

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A Perfect Storm? Reimagining Work in the Era of the End of the Job

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Ethnographic Praxis in Industry Conference Proceedings 2014年第1期2014卷 3-19页

作者： MELISSA CEFKIN OBINNA ANYA ROBERT MOORE Anthropologist at IBM Research who focuses on work and organization in complex contexts. Postdoctoral researcher at IBM Research – Almaden. Sociologist at IBM Research – Almaden where he examines work practice social interaction and human-computer interaction.

Trends of independent workers, an economy of increasingly automated processes and an ethos of the peer-to-peer “sharing economy” are all coming together to transform work and employment as we know them. Emerging forms of “open” and “crowd” work are particularly keen sites for investigating how the structures and experiences of work, employment and organizations are changing. Drawing on research and design of work in organizational contexts, this paper explores how experiences with open and crowd work systems serve as sites of workplace cultural re-imagining. A marketplace, a crowdwork system and a crowdfunding experiment, all implemented within IBM, are examined as instances of new workplace configurations.

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Digital Fabrication Technology in the Library: Where We Are and Where We Are Going

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Bulletin of the Association for Information Science and Technology 2016年第1期42卷

作者： Stephanie C. Prato public librarian Lauren Britton PhD candidate MLIS Syracuse University. She is a graduate of the School of Information Studies at Syracuse University (2012). She is committed to providing community members with tools opportunities and experiences that will enable them to be self-motivated lifelong learners. Stephanie is interested in creating dynamic hands-on learning opportunities in libraries especially around making STEM topics and digital creation. With experience in youth services technology and instruction she delights in helping people of all ages discover what the 21st century public library can do. Information science and technology at Syracuse University. Her research lies at the intersection of human computer interaction and social theory with particular interest in feminist science and technology studies and ubiquitous computing. Lauren's dissertation work explores the relationship between the human body and embedded/implanted technology. Lauren is a student researcher with the BITS Lab at Syracuse University.

EDITOR'S SUMMARY Makerspaces are environments where crafters and techies can come together to create, share and learn. Many libraries support the maker movement by providing access to a variety of technologies from sewing machines and looms to recording equipment and production tools, an expansion of services that is in line with promoting literacy, community and lifelong learning. About one third of makerspaces charged a fee or required membership in 2013, though some, including libraries and museums, are supported by major funding agencies. Digital fabrication technology or 3D printers are increasingly available through library-based makerspaces and extend opportunities for STEM education, but libraries face challenges from high initial and ongoing costs, user training and even encouraging users in 3D thinking and design. 3D printers can be a powerful stimulus for creativity, learning and sharing, even promoting jobs and community development.

关键词： digital modeling and fabrication makerspaces 3D printers library and archival services access to resources diffusion of innovation lifelong learning creativity communities

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ProFi: Design and evaluation of a productfinder in a supermarket scenario

ProFi: Design and evaluation of a productfinder in a superma...

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2013 ACM Conference on Ubiquitous Computing, UbiComp 2013

作者： Li, Ming Arning, Katrin Bremen, Luisa Sack, Oliver Ziefle, Martina Kobbelt, Leif Computer Graphics and Multimedia Group RWTH Aachen AhornStr.55 52074 Aachen Germany Human-Computer Interaction Centre RWTH Aachen Theater Str.14 52062 Aachen Germany

ISBN: (纸本)9781450322157

This paper presents the design and evaluation of ProFi, a PROduct FInding assistant in a supermarket scenario. We explore the idea of micro-navigation in supermarkets and aim at enhancing visual search processes in front of a shelf. In order to assess the concept, a prototype is built combining visual recognition techniques with an Augmented Reality interface. Two AR patterns (circle and spotlight) are designed to highlight target products. The prototype is formally evaluated in a controlled environment. Quantitative and qualitative data is collected to evaluate the usability and user preference. The results show that ProFi significantly improves the users' product finding performance, especially when using the circle pattern, and that ProFi is well accepted by users. Copyright © 2013 ACM.

关键词： Augmented reality

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