publications

2024

1. AutoUI

   

   Modeling Social Situation Awareness in Driving Interactions

   Navit Klein, Hauke Sandhaus, David Goedicke, and 2 more authors

   In Proceedings of the 16th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, Stanford, CA, USA, 2024

   Abs Bib HTML

   The design of self-driving vehicles requires an understanding of the social interactions between drivers in resolving vague encounters, such as at un-signalized intersections. In this paper, we make the case for social situation awareness as a model for understanding everyday driving interaction. Using a dual-participant VR driving simulator, we collected data from driving encounter scenarios to understand how (N=170) participant drivers behave with respect to one another. Using a social situation awareness questionnaire we developed, we assessed the participants’ social awareness of other driver’s direction of approach to the intersection, and also logged signaling, speed and speed change, and heading of the vehicle. Drawing upon the statistically significant relationships in the variables in the study data, we propose a Social Situation Awareness model based on the approach, speed, change of speed, heading and explicit signaling from drivers.

   @inproceedings{10.1145/3640792.3675717,
     title = {Modeling Social Situation Awareness in Driving Interactions},
     author = {Klein, Navit and Sandhaus, Hauke and Goedicke, David and Ju, Wendy and Parush, Avi},
     year = {2024},
     booktitle = {Proceedings of the 16th International Conference on Automotive User Interfaces and Interactive Vehicular Applications},
     location = {Stanford, CA, USA},
     publisher = {Association for Computing Machinery},
     address = {New York, NY, USA},
     series = {AutomotiveUI '24},
     pages = {1},
     doi = {10.1145/3640792.3675717},
     isbn = {9798400705106},
     url = {https://doi.org/10.1145/3640792.3675717},
     numpages = {1},
     keywords = {Driving encounters, autonomous vehicles, social situational awareness (SA), unsignaled intersections, virtual reality (VR)},
   }

2. AutoUI

   

   Changing Lanes Toward Open Science: Openness and Transparency in Automotive User Research

   Patrick Ebel, Pavlo Bazilinskyy, Mark Colley, and 6 more authors

   In Proceedings of the 16th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, Stanford, CA, USA, 2024

   Abs Bib HTML PDF

   We review the state of open science and the perspectives on open data sharing within the automotive user research community. Openness and transparency are critical not only for judging the quality of empirical research, but also for accelerating scientific progress and promoting an inclusive scientific community. However, there is little documentation of these aspects within the automotive user research community. To address this, we report two studies that identify (1) community perspectives on motivators and barriers to data sharing, and (2) how openness and transparency have changed in papers published at AutomotiveUI over the past 5 years. We show that while open science is valued by the community and openness and transparency have improved, overall compliance is low. The most common barriers are legal constraints and confidentiality concerns. Although research published at AutomotiveUI relies more on quantitative methods than research published at CHI, openness and transparency are not as well established. Based on our findings, we provide suggestions for improving openness and transparency, arguing that the motivators for open science must outweigh the barriers. All supporting materials are freely available at: https://osf.io/zdpek/

   @inproceedings{10.1145/3640792.3675730,
     title = {Changing Lanes Toward Open Science: Openness and Transparency in Automotive User Research},
     author = {Ebel, Patrick and Bazilinskyy, Pavlo and Colley, Mark and Goodridge, Courtney Michael and Hock, Philipp and Janssen, Christian P. and Sandhaus, Hauke and Srinivasan, Aravinda Ramakrishnan and Wintersberger, Philipp},
     year = {2024},
     booktitle = {Proceedings of the 16th International Conference on Automotive User Interfaces and Interactive Vehicular Applications},
     location = {Stanford, CA, USA},
     publisher = {Association for Computing Machinery},
     address = {New York, NY, USA},
     series = {AutomotiveUI '24},
     pages = {94–105},
     doi = {10.1145/3640792.3675730},
     isbn = {9798400705106},
     url = {https://doi.org/10.1145/3640792.3675730},
     numpages = {12},
     keywords = {AutomotiveUI, open data, open science, openness, reproducibility, transparency},
   }

3. AutoUI WiP

   

   Regaining Trust: Impact of Transparent User Interface Design on Acceptance of Camera-Based In-Car Health Monitoring Systems

   Hauke Sandhaus, Madiha Zahrah Choksi, and Wendy Ju

   In Adjunct Proceedings of the 16th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, Stanford, CA, USA, 2024

   Abs arXiv Bib HTML

   Introducing in-car health monitoring systems offers substantial potential to improve driver safety. However, camera-based sensing technologies introduce significant privacy concerns. This study investigates the impact of transparent user interface design on user acceptance of these systems. We conducted an online study with 42 participants using prototypes varying in transparency, choice, and deception levels. The prototypes included three onboarding designs: (1) a traditional Terms and Conditions text, (2) a Business Nudge design that subtly encouraged users to accept default data-sharing options, and (3) a Transparent Walk-Through that provided clear, step-by-step explanations of data use and privacy policies. Our findings indicate that transparent design significantly affects user experience measures, including perceived creepiness, trust in data use, and trustworthiness of content. Transparent onboarding processes enhanced user experience and trust without significantly increasing onboarding time. These findings offer practical guidance for designing user-friendly and privacy-respecting in-car health monitoring systems.

   @inproceedings{sandhaus2024regainingtrustimpacttransparent,
     title = {Regaining Trust: Impact of Transparent User Interface Design on Acceptance of Camera-Based In-Car Health Monitoring Systems},
     author = {Sandhaus, Hauke and Choksi, Madiha Zahrah and Ju, Wendy},
     year = {2024},
     booktitle = {Adjunct Proceedings of the 16th International Conference on Automotive User Interfaces and Interactive Vehicular Applications},
     location = {Stanford, CA, USA},
     publisher = {Association for Computing Machinery},
     address = {New York, NY, USA},
     series = {AutomotiveUI '24 Adjunct},
     pages = {203–208},
     doi = {10.1145/3641308.3685048},
     isbn = {9798400705205},
     url = {https://doi.org/10.1145/3641308.3685048},
     numpages = {6},
     keywords = {Creepiness, In-Car Health Monitoring, Online Study, Pervasive Sensing, Privacy, Technology Acceptance, Transparent Design, Trustworthiness, User Experience, Vehicle},
     archiveprefix = {arXiv},
     primaryclass = {cs.HC},
   }

4. CHI Workshop

   

   Student Reflections on Self-Initiated GenAI Use in HCI Education

   Hauke Sandhaus, Maria Teresa Parreira, and Wendy Ju

   LLMs as Research Tools Workshop at CHI Conference, Honolulu, Hawaii, USA, May 2024

   Abs arXiv Bib HTML PDF

   This study explores students’ self-initiated use of Generative Artificial Intelligence (GenAI) tools in an interactive systems design class. Through 12 group interviews, students revealed the dual nature of GenAI in (1) stimulating creativity and (2) speeding up design iterations, alongside concerns over its potential to cause shallow learning and reliance. GenAI’s benefits were pronounced in the execution phase of design, aiding rapid prototyping and ideation, while its use in initial insight generation posed risks to depth and reflective practice. This reflection highlights the complex role of GenAI in Human-Computer Interaction education, emphasizing the need for balanced integration to leverage its advantages without compromising fundamental learning outcomes.

   @article{sandhaus_student_2024,
     title = {Student Reflections on Self-Initiated GenAI Use in HCI Education},
     author = {Sandhaus, Hauke and Parreira, Maria Teresa and Ju, Wendy},
     year = {2024},
     month = may,
     journal = {LLMs as Research Tools Workshop at CHI Conference},
     location = {Honolulu, Hawaii, USA},
     language = {en},
     primaryclass = {cs.HC},
     archiveprefix = {arXiv},
   }

5. CHI Workshop

   

   Towards Quantifying Ethical User Experience: Evaluating User Perceptions of Dark Patterns in Social Media

   Doris Maria Rhomberg^*, and Hauke Sandhaus^*

   Mobilizing Research and Regulatory Action on Dark Patterns and Deceptive Design Practices Workshop at CHI Conference on Human Factors in Computing Systems , Honolulu, Hawaii, USA, May 2024

   * = equal contribution

   Abs Bib HTML PDF

   No standardized questionnaire currently incorporates an ethical dimension for assessing User Experience (UX). We explored how the ethicality of interface design is reflected in current UX metrics and how they could be extended. To this end, we adapted the User Experience Questionnaire (UEQ) and enriched it with supplementary items specifically designed to capture user responses on social media to unethical interface designs, commonly referred to as ’dark patterns’. Through an exploratory analysis of a survey involving 120 participants who evaluated a selection of 15 social media dark patterns, we found preliminary evidence that (1) an aggregated UX score using items from the User Experience Questionnaire does not effectively indicate unethical user interface design. Instead, (2) subscale measures from the questionnaire show a relationship with unethical design. Furthermore, extending the User Experience Questionnaire seems promising, as (3) users can identify interfaces with addictive and pressuring properties, and (4) evaluations demonstrate consistency within groups of unethical design strategies.

   @article{rhomberg_towards_2024,
     title = {Towards Quantifying Ethical User Experience: Evaluating User Perceptions of Dark Patterns in Social Media},
     author = {Rhomberg, Doris Maria and Sandhaus, Hauke},
     year = {2024},
     month = may,
     journal = {
             Mobilizing Research and Regulatory Action on Dark Patterns and Deceptive Design Practices Workshop at CHI Conference on Human Factors in Computing Systems
         },
     location = {Honolulu, Hawaii, USA},
     language = {en},
     note = {* = equal contribution}
   }

6. 🏆 CHI

   

   The Cadaver in the Machine: The Social Practices of Measurement and Validation in Motion Capture Technology

   Emma Harvey, Hauke Sandhaus, Abigail Z Jacobs, and 2 more authors

   Proceedings of the CHI Conference on Human Factors in Computing Systems, Honolulu, HI, USA, Jan 2024

   Best Paper Honorable Mention at CHI ’24

   Abs arXiv Bib HTML

   Motion capture systems, used across various domains, make body representations concrete through technical processes. We argue that the measurement of bodies and the validation of measurements for motion capture systems can be understood as social practices. By analyzing the findings of a systematic literature review (N=278) through the lens of social practice theory, we show how these practices, and their varying attention to errors, become ingrained in motion capture design and innovation over time. Moreover, we show how contemporary motion capture systems perpetuate assumptions about human bodies and their movements. We suggest that social practices of measurement and validation are ubiquitous in the development of data- and sensor-driven systems more broadly, and provide this work as a basis for investigating hidden design assumptions and their potential negative consequences in human-computer interaction.

   @article{Harvey2024-gn,
     title = {The Cadaver in the Machine: The Social Practices of Measurement and Validation in Motion Capture Technology},
     author = {Harvey, Emma and Sandhaus, Hauke and Jacobs, Abigail Z and Moss, Emanuel and Sloane, Mona},
     year = {2024},
     month = jan,
     journal = {Proceedings of the CHI Conference on Human Factors in Computing Systems},
     archiveprefix = {arXiv},
     primaryclass = {cs.CY},
     publisher = {Association for Computing Machinery},
     address = {New York, NY, USA},
     articleno = {768},
     numpages = {23},
     keywords = {anthropometry, measurement, motion capture, social practices, validation},
     location = {Honolulu, HI, USA},
     series = {CHI '24},
     doi = {10.1145/3613904.3642004},
     url = {https://doi.org/10.1145/3613904.3642004},
     howpublished = {CHI '24: Proceedings of the CHI Conference on Human Factors in Computing Systems},
     note = {Best Paper Honorable Mention at CHI '24},
   }

2023

1. CSCW

   

   VR Job Interview Using a Gender-Swapped Avatar

   Jieun Kim^*, Hauke Sandhaus^*, and Susan R Fussell

   In Computer Supported Cooperative Work and Social Computing, Oct 2023

   * = equal contribution

   Abs arXiv Bib HTML

   Virtual Reality (VR) has emerged as a potential solution for mitigating bias in a job interview by hiding the applicants’ demographic features. The current study examines the use of a gender-swapped avatar in a virtual job interview that affects the applicants’ perceptions and their performance evaluated by recruiters. With a mixed-method approach, we first conducted a lab experiment (N=8) exploring how using a gender-swapped avatar in a virtual job interview impacts perceived anxiety, confidence, competence, and ability to perform. Then, a semi-structured interview investigated the participants’ VR interview experiences using an avatar. Our findings suggest that using gender-swapped avatars may reduce the anxiety that job applicants will experience during the interview. Also, the affinity diagram produced seven key themes highlighting the advantages and limitations of VR as an interview platform. These findings contribute to the emerging field of VR-based recruitment and have practical implications for promoting diversity and inclusion in the hiring process.

   @inproceedings{Kim2023-no,
     title = {VR Job Interview Using a Gender-Swapped Avatar},
     author = {Kim, Jieun and Sandhaus, Hauke and Fussell, Susan R},
     year = {2023},
     month = oct,
     booktitle = {Computer Supported Cooperative Work and Social Computing},
     publisher = {ACM},
     address = {New York, NY, USA},
     doi = {10.1145/3584931.3606976},
     url = {https://doi.org/10.1145/3584931.3606976},
     language = {en},
     eprint = {2307.04247},
     archiveprefix = {arXiv},
     primaryclass = {cs.HC},
     howpublished = {CSCW '23 Companion},
     note = {* = equal contribution}
   }

2. CHI Workshop

   

   Promoting Bright Patterns

   Hauke Sandhaus

   Oct 2023

   Abs arXiv Bib Website

   User experience designers are facing increasing scrutiny and criticism for creating harmful technologies, leading to a pushback against unethical design practices. While clear-cut harmful practices such as dark patterns have received attention, trends towards automation, personalization, and recommendation present more ambiguous ethical challenges. To address potential harm in these "gray" instances, we propose the concept of "bright patterns" - persuasive design solutions that prioritize user goals and well-being over their desires and business objectives. The ambition of this paper is threefold: to define the term "bright patterns", to provide examples of such patterns, and to advocate for the adoption of bright patterns through policymaking.

   @misc{sandhaus2023promoting,
     title = {Promoting Bright Patterns},
     author = {Sandhaus, Hauke},
     year = {2023},
     eprint = {2304.01157},
     archiveprefix = {arXiv},
     primaryclass = {cs.HC},
     howpublished = {CHI '23 Workshop: Designing Technology and Policy Simultaneously},
   }

3. CHI Workshop

   

   Towards Prototyping Driverless Vehicle Behaviors, City Design, and Policies Simultaneously

   Hauke Sandhaus, Wendy Ju, and Qian Yang

   Oct 2023

   Abs arXiv Bib

   Autonomous Vehicles (AVs) can potentially improve urban living by reducing accidents, increasing transportation accessibility and equity, and decreasing emissions. Realizing these promises requires the innovations of AV driving behaviors, city plans and infrastructure, and traffic and transportation policies to join forces. However, the complex interdependencies among AV, city, and policy design issues can hinder their innovation. We argue the path towards better AV cities is not a process of matching city designs and policies with AVs’ technological innovations, but a process of iterative prototyping of all three simultaneously: Innovations can happen step-wise as the knot of AV, city, and policy design loosens and tightens, unwinds and reties. In this paper, we ask: How can innovators innovate AVs, city environments, and policies simultaneously and productively toward better AV cities? The paper has two parts. First, we map out the interconnections among the many AV, city, and policy design decisions, based on a literature review spanning HCI/HRI, transportation science, urban studies, law and policy, operations research, economy, and philosophy. This map can help innovators identify design constraints and opportunities across the traditional AV/city/policy design disciplinary bounds. Second, we review the respective methods for AV, city, and policy design, and identify key barriers in combining them: (1) Organizational barriers to AV-city-policy design collaboration, (2) computational barriers to multi-granularity AV-city-policy simulation, and (3) different assumptions and goals in joint AV-city-policy optimization. We discuss two broad approaches that can potentially address these challenges, namely, "low-fidelity integrative City-AV-Policy Simulation (iCAPS)" and "participatory design optimization".

   @misc{sandhaus2023prototyping,
     title = {Towards Prototyping Driverless Vehicle Behaviors, City Design, and Policies Simultaneously},
     author = {Sandhaus, Hauke and Ju, Wendy and Yang, Qian},
     year = {2023},
     eprint = {2304.06639},
     archiveprefix = {arXiv},
     primaryclass = {cs.HC},
     howpublished = {CHI '23 Workshop: Designing Technology and Policy Simultaneously},
   }

2018

1. UIST

   

   A WOZ Study of Feedforward Information on an Ambient Display in Autonomous Cars

   Hauke Sandhaus, and Eva Hornecker

   In The 31st Annual ACM Symposium on User Interface Software and Technology Adjunct Proceedings, Berlin, Germany, Oct 2018

   Abs Bib HTML

   We describe the development and user testing of an ambient display for autonomous vehicles. Instead of providing feedback about driving actions, once executed, it communicates driving decisions in advance, via light signals in passengers’ peripheral vision. This ambient display was tested in a WoZ-based on-the-road-driving simulation of a fully autonomous vehicle. Findings from a preliminary study with 14 participants suggest that such a display might be particularly useful to communicate upcoming inertia changes for passengers.

   @inproceedings{Sandhaus2018-el,
     title = {A WOZ Study of Feedforward Information on an Ambient Display in Autonomous Cars},
     author = {Sandhaus, Hauke and Hornecker, Eva},
     year = {2018},
     month = oct,
     booktitle = {The 31st Annual {ACM} Symposium on User Interface Software and Technology Adjunct Proceedings},
     location = {Berlin, Germany},
     publisher = {Association for Computing Machinery},
     address = {New York, NY, USA},
     series = {UIST '18 Adjunct},
     pages = {90--92},
     doi = {10.1145/3266037.3266111},
     isbn = {9781450359498},
     url = {https://doi.org/10.1145/3266037.3266111},
     keywords = {on-road simulation, autonomous vehicle interfaces, methodology, ambient display},
   }

2. D TEX

   

   Smart Textiles in the Performing Arts

   Aline Martinez, Michaela Honauer, Hauke Sandhaus, and 1 more author

   Textiles, Identity and Innovation: Design the Future, Oct 2018

   Abs Bib HTML

   We present the Sonification Costume, an interactive costume created for modern dance performances, that makes movements perceivable through sound. We created it in the context of studying textile-based sensors, and here describe the exploration of different production techniques, which led to a knitted whole-body suit with seamlessly integrated stretch sensors. Self-reflection and a user study reveal that the costume concept is interesting to dancers and how we can further improve textile-integrated sensors.

   @article{Martinez2018-xc,
     title = {Smart Textiles in the Performing Arts},
     author = {Martinez, Aline and Honauer, Michaela and Sandhaus, Hauke and Hornecker, Eva},
     year = {2018},
     journal = {Textiles, Identity and Innovation: Design the Future},
     publisher = {Taylor & Francis},
     url = {https://www.taylorfrancis.com/chapters/edit/10.1201/9781315100210-57/smart-textiles-performing-arts-aline-martinez-michaela-honauer-hauke-sandhaus-eva-hornecker},
   }

2015

1. UT

   

   Development of a 3D Navigable Interface for a Touchless Showcase

   Hauke Sandhaus

   University of Twente, Oct 2015

   Abs Bib HTML

   Due to widespread usage of touchscreens, users have accepted interaction without haptic feedback. Commercial game consoles have introduced users to touchless input and natural user interfaces. Only recently it has become technically possible to track human hand skeleton in high detail, precision, and low latency contactless. This report describes the design process for the user experience, user interface, and interaction interface of a touchless showcase using skeletal hand tracking. The project extends on existing hardware, compares current approaches, researches on the user group, and rebuilds the software, based on these findings, from scratch. To allow input, multiple interactions and 3D buttons were developed. In a user experiment, these were tested. A final prototype was implemented on two showcases for a month and compared to the existing software. The findings suggest that users want more natural and direct interactions. Missing physical feedback, non-existent depth perception on traditional screens, and unfamiliar gesture language are hindrances but can be overcome with the use of good visual cues. Future work on the software is solely on refinement. Some of the interactions investigated in this thesis will prevail, while some might appear in other contexts.

   @mastersthesis{Sandhaus2015-in,
     title = {Development of a {3D} Navigable Interface for a Touchless Showcase},
     author = {Sandhaus, Hauke},
     year = {2015},
     school = {University of Twente},
   }