@inproceedings{plabst2022push,

title = {Push the Red Button: Comparing Notification Placement with Augmented and Non-Augmented Tasks in AR},

author = {Lucas Plabst and Sebastian Oberdörfer and Francisco Ortega and Florian Niebling},

doi = {10.1145/3565970.3567701},

year  = {2022},

date = {2022-01-01},

urldate = {2022-01-01},

booktitle = {Symposium on Spatial User Interaction},

pages = {1--11},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{saad2022systematic,

title = {A Systematic Analysis of External Factors Affecting Gait Identification},

author = {Alia Saad and Nick Wittig and Uwe Gruenefeld and Stefan Schneegass},

url = {https://uwe-gruenefeld.de/pub/gaitfactors-paper.pdf},

doi = {10.1109/IJCB54206.2022.10007994},

year  = {2022},

date = {2022-01-01},

urldate = {2022-01-01},

booktitle = {IEEE International Joint Conference on Biometrics (IJCB).},

abstract = {Inertial sensors integrated into smartphones provide a unique opportunity for implicitly identifying users through their gait. However, researchers identified different external factors influencing the user's gait and consequently impact gait-based user identification algorithms. While these previous studies provide important insights, a holistic comparison of external factors influencing identification algorithms is still missing. In this explorative work, we conducted a focus group with participants from biometrics research to collect and classify these factors. Next, we recorded the gait of 12 participants walking regularly and being influenced by eleven different external factors (e.g., shoes and floor types) in two separate sessions. We used a Deep Learning (DL) identification algorithm for analysis and validated the analysis results using within- and between- sessions data. We propose a categorization of gait covariates based on users' control levels. Floor types have the most significant impact on recognition accuracy. Finally, between-session analysis shows less accurate yet more robust results than within-session validation and testing.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{10.1145/3552327.3552354,

title = {”Man’s (and Sheep’s) Best Friend”: Towards a Shepherding-Based Metaphor for Human-Computer Cooperation in Process Control},

author = {Tilo Mentler and Nadine Flegel and Jonas Pöhler and Kristof Van Laerhoven},

url = {https://doi.org/10.1145/3552327.3552354},

doi = {10.1145/3552327.3552354},

isbn = {9781450398084},

year  = {2022},

date = {2022-01-01},

booktitle = {Proceedings of the 33rd European Conference on Cognitive Ergonomics},

publisher = {Association for Computing Machinery},

address = {<conf-loc>, <city>Kaiserslautern</city>, <country>Germany</country>, </conf-loc>},

series = {ECCE '22},

abstract = {Metaphors can be helpful in human-computer interaction in various ways, e.g., for user-appropriate design of interfaces, naming of functions, or visualization. In the field of process control, paradigm shifts are imminent under terms such as smart control rooms or pervasive computing environments. However, there is a lack of suitable metaphors to accompany this development. This paper examines the extent to which sheep herding and the relationships between humans, dogs, and sheep can be a suitable model for shaping human-computer cooperation in process control. Even though sheep herding has already been discussed in various relationships to HCI, a systematic discussion of the factors that underlie successful human-animal cooperation is lacking. This is introduced in this paper based on an expert interview and literature research. Based on this, it is discussed to what extent the success factors can be transferred to the design of technical systems and human-computer cooperation.},

keywords = {Control Room, Metaphor, Pervasive Computing Environment, Safety-Critical Systems, Shepherd},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{10.1145/3546155.3546640,

title = {PriKey – Investigating Tangible Privacy Control for Smart Home Inhabitants and Visitors},

author = {Sarah Delgado Rodriguez and Sarah Prange and Christina Vergara Ossenberg and Markus Henkel and Florian Alt and Karola Marky},

url = {https://doi.org/10.1145/3546155.3546640},

doi = {10.1145/3546155.3546640},

isbn = {9781450396998},

year  = {2022},

date = {2022-01-01},

booktitle = {Nordic Human-Computer Interaction Conference},

publisher = {Association for Computing Machinery},

address = {Aarhus, Denmark},

series = {NordiCHI '22},

abstract = {The increasing number of smart devices installed in our homes poses privacy risks for inhabitants and visitors. However, individuals face difficulties counteracting privacy intrusions due to missing controls, incorrect mental models, and limitations in their level of expertise. We present PriKey, a concept for device-independent and easy-to-use tangible smart home privacy mechanisms. PriKey is the key to privacy protection: it supports users in taking control over their privacy through meaningful, tangible interactions. Using a Wizard-of-Oz prototype, we explored users’ perceptions regarding PriKey (N = 16). We then compared PriKey to an equivalent smartphone app (N = 32), focusing on visitors. Participants perceived PriKey as engaging, intuitive, and benevolent. Their privacy considerations were based on personal and contextual factors. While most participants preferred the smartphone app, others clearly favored PriKey. Our results indicate that tangible privacy is a noteworthy approach for future smart home privacy mechanisms.},

keywords = {bystander, privacy, privacy assistance, smart home, tangible, tangible privacy},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{10.1145/3510487.3510494,

title = {Under Pressure. A User-Centered Threat Model for Cryptocurrency Owners},

author = {Michael Froehlich and Philipp Hulm and Florian Alt},

url = {https://doi.org/10.1145/3510487.3510494},

doi = {10.1145/3510487.3510494},

isbn = {9781450387460},

year  = {2022},

date = {2022-01-01},

booktitle = {Proceedings of the 2021 4th International Conference on Blockchain Technology and Applications},

pages = {39–50},

publisher = {Association for Computing Machinery},

address = {Xi'an, China},

series = {ICBTA '21},

abstract = {Cryptocurrencies have gained popularity in recent years. However, for many users, keeping ownership of their cryptocurrency is a complex task. News reports frequently bear witness to scams, hacked exchanges, and fortunes beyond retrieval. However, we lack a systematic understanding of user-centered cryptocurrency threats, as causes leading to loss are scattered across publications. To address this gap, we conducted a focus group (n=6) and an expert elicitation study (n=25) following a three-round Delphi process with a heterogeneous group of blockchain and security experts from academia and industry. We contribute the first systematic overview of threats cryptocurrency users are exposed to and propose six overarching categories. Our work is complemented by a discussion on how the human-computer-interaction community can address these threats and how practitioners can use the model to understand situations in which users might find themselves under the pressure of an attack to ultimately engineer more secure systems.},

keywords = {blockchain, cryptocurrency, hci, threat model, user-centered},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{nokey,

title = {Sweet Spot: Displaying Interaction Areas on Everyday Home Surfaces using AR},

author = {Chamunorwa, Michael and Müller, Lisa-Maria and Ihmels, Tjado and Diekmann, Dennis and Müller, Heiko and Boll, Susanne CJ},

doi = {10.1145/3447932.3490524},

isbn = {9781450383400},

year  = {2021},

date = {2021-11-17},

urldate = {2021-11-17},

booktitle = {Interactive Surfaces and Spaces},

pages = {21-24},

publisher = {Association for Computing Machinery},

address = {New York, NY, USA},

abstract = {In a typical home or office setting, a work desk provides a surface that primarily holds objects and is used for everyday tasks such as writing and typing. However, given its centrality and multiple surfaces, many of which are always unoccupied, an ordinary table may find secondary usage as an alternative interface to control facets of a smart home. For tabletop surfaces to work efficiently as alternative interfaces, there is a need to determine their most reachable zones and those that do not have too much clutter. We present Sweet Spots, an AR platform to visualize easily accessible and non-cluttered areas on table-like surfaces using augmented reality to assess suitable interaction areas. Sweet Spots provides designers and researchers with a tool to visualize their ideas and to take the exploration of key parameters that make an interaction area a Sweet Spot.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{10.1007/978-3-030-98388-8_25,

title = {Control Rooms from a Human-Computer Interaction Perspective},

author = {Tilo Mentler and Philippe Palanque and Michael D. Harrison and Kristof Van Laerhoven and Paolo Masci},

editor = {Carmelo Ardito and Rosa Lanzilotti and Alessio Malizia and Marta Larusdottir and Lucio Davide Spano and José Campos and Morten Hertzum and Tilo Mentler and José Abdelnour Nocera and Lara Piccolo and Stefan Sauer and Gerrit Veer},

doi = {10.1007/978-3-030-98388-8_25},

isbn = {978-3-030-98388-8},

year  = {2021},

date = {2021-08-30},

urldate = {2021-08-30},

booktitle = {Sense, Feel, Design},

pages = {281--289},

publisher = {Springer International Publishing},

address = {Cham},

abstract = {As defined in Paper 2 presented at the workshop, whose presentations and discussions are introduced in this paper, ``control rooms are work spaces that serve the purpose of managing and operating physically dispersed systems, services and staff''.},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{reinhardt2021placement,

title = {Placement of Teleported Co-users in AR},

author = {Jens Reinhardt and Marco Kurzweg and Katrin Wolf},

doi = {10.1007/978-3-030-85623-6_34},

year  = {2021},

date = {2021-01-01},

urldate = {2021-01-01},

booktitle = {IFIP Conference on Human-Computer Interaction},

pages = {590--610},

organization = {Springer},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{zenner2021blink,

title = {Blink-Suppressed Hand Redirection},

author = {André Zenner and Kora Persephone Heqitz and Antonio Krüger},

doi = {10.1109/VR50410.2021.00028},

year  = {2021},

date = {2021-01-01},

urldate = {2021-01-01},

booktitle = {2021 IEEE Virtual Reality and 3D User Interfaces (VR)},

pages = {75--84},

organization = {IEEE},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{makela2021hidden,

title = {Hidden Interaction Techniques: Concealed Information Acquisition and Texting on Smartphones and Wearables},

author = {Ville Mäkelä and Johannes Kleine and Maxine Hood and Florian Alt and Albrecht Schmidt},

doi = {10.1145/3411764.3445504},

year  = {2021},

date = {2021-01-01},

urldate = {2021-01-01},

booktitle = {Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems},

pages = {1--14},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{frohlich2021better,

title = {Is it Better With Onboarding? Improving First-Time Cryptocurrency App Experiences},

author = {Michael Fröhlich and Charlotte Kobiella and Albrecht Schmidt and Florian Alt},

doi = {10.1145/3461778.3462047},

year  = {2021},

date = {2021-01-01},

urldate = {2021-01-01},

booktitle = {Proceedings of the 2021 ACM Designing Interactive Systems Conference (Virtual Event, USA)(DIS’21). Association for Computing Machinery, New York, NY, USA. https://doi. org/10.1145/3461778.3462047},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{rivu2021emotion,

title = {Emotion Elicitation Techniques in Virtual Reality},

author = {Radiah Rivu and Ruoyu Jiang and Ville Mäkelä and Mariam Hassib and Florian Alt},

doi = {10.1007/978-3-030-85623-6_8},

year  = {2021},

date = {2021-01-01},

urldate = {2021-01-01},

booktitle = {IFIP Conference on Human-Computer Interaction},

pages = {93--114},

organization = {Springer},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{frohlich2021don,

title = {Don’t Stop Me Now! Exploring Challenges Of First-Time Cryptocurrency Users},

author = {Michael Fröhlich and Maurizio Raphael Wagenhaus and Albrecht Schmidt and Florian Alt},

doi = {10.1145/3461778.3462071},

year  = {2021},

date = {2021-01-01},

urldate = {2021-01-01},

booktitle = {Designing Interactive Systems Conference 2021},

pages = {138--148},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}