| 1. |
- Matviienko, Andrii, et al.
(författare)
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Augmenting bicycles and helmets with multimodal warnings for children
- 2018
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Ingår i: MobileHCI 2018 - Beyond Mobile. - New York, NY, USA : Association for Computing Machinery (ACM).
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Konferensbidrag (refereegranskat)abstract
- Child cyclists are often at greater risk for traffic accidents. This is in part due to the development of children's motor and perceptual-motor abilities. To facilitate road safety for children, we explore the use of multimodal warning signals to increase their awareness and prime action in critical situations. We developed a bicycle simulator instrumented with these signals and conducted two controlled experiments. We found that participants spent significantly more time perceiving visual than auditory or vibrotactile cues. Unimodal signals were the easiest to recognize and suitable for encoding directional cues. However, when priming stop actions, reaction time was shorter when all three modalities were used simultaneously. We discuss the implications of these outcomes with regard to design of safety systems for children and their perceptual-motor learning.
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| 2. |
- Matviienko, Andrii, et al.
(författare)
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Awarekit: Exploring a tangible interaction paradigm for digital calendars
- 2017
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Ingår i: CHI 2017 Extended Abstracts - Proceedings of the 2017 ACM SIGCHI Conference on Human Factors in Computing Systems: Explore, Innovate, Inspire. - New York, NY, USA : Association for Computing Machinery (ACM). ; , s. 1877-1884
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Konferensbidrag (refereegranskat)abstract
- Digital calendars are a conventional tool for planning meetings and providing information about the availability of others. In this paper, we explore an alternative tangible way of interaction with existing electronic calendaring systems. Our prototype, called AwareKit, is a tangible toolkit aimed at supplementing existing electronic calendar systems and exploits quick, fun and playful interaction. It integrates an attractive design and utilizes touch and rotation as interaction techniques to access different types of information. In this paper, we outline the design concept of AwareKit, its hardware implementation and the first usability feedback. The results of the pilot usability study showed that AwareKit is easy to use and facilitates intuitive and playful interaction.
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| 3. |
- Matviienko, Andrii, et al.
(författare)
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Comparing unimodal lane keeping cues for child cyclists
- 2019
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Ingår i: MUM 2019 - 18th International Conference on Mobile and Ubiquitous Multimedia, Proceedings. - New York, NY, USA : Association for Computing Machinery (ACM).
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Konferensbidrag (refereegranskat)abstract
- Child cyclists are at greater risk for car-to-cyclist accidents than adults. This is in part due to developmental differences in the motor and perceptual-motor abilities of children and adults, and missing cycling infrastructure. To address these issues, we examine unimodal and projection-based techniques to support children in maintaining a good lane position in the absence of bicycle lanes. We present safety-relevant information using unimodal cues: vibration on the handlebar, ambient light in a cycle helmet, projected heads-up display indicators, and on-road laser projection. As a first step, we interviewed twelve children about their cycling issues. We then conducted a lab experiment (N=25) in a bicycle simulator using the unimodal cues in the presence of a visual search task, followed by a controlled test-track experiment (N=15). We found that cycling performance with lane keeping cues was comparable to situations without them, however children found them helpful and expressed subjective preferences for the LED helmet and vibration on the handlebar.
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| 4. |
- Matviienko, Andrii, et al.
(författare)
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NaviBike : Comparing Unimodal Navigation Cues for Child Cyclists
- 2019
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Ingår i: CHI '19. - New York, NY, USA : ACM. ; , s. 1-12
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Konferensbidrag (refereegranskat)abstract
- Navigation systems for cyclists are commonly screen-based devices mounted on the handlebar which show map information. Typically, adult cyclists have to explicitly look down for directions. This can be distracting and challenging for children, given their developmental differences in motor and perceptual-motor abilities compared with adults. To address this issue, we designed different unimodal cues and explored their suitability for child cyclists through two experiments. In the first experiment, we developed an indoor bicycle simulator and compared auditory, light, and vibrotactile navigation cues. In the second experiment, we investigated these navigation cues in-situ in an outdoor practice test track using a mid-size tricycle. To simulate road distractions, children were given an additional auditory task in both experiments. We found that auditory navigational cues were the most understandable and the least prone to navigation errors. However, light and vibrotactile cues might be useful for educating younger child cyclists.
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| 5. |
- Matviienko, Andrii, et al.
(författare)
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Reminding child cyclists about safety gestures
- 2020
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Ingår i: Proceedings - Pervasive Displays 2020: 9th ACM International Symposium on Pervasive Displays, PerDis 2020. - New York, NY, USA : Association for Computing Machinery (ACM). ; , s. 1-7
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Konferensbidrag (refereegranskat)abstract
- Cycling safety gestures, such as hand signals and shoulder checks, are an essential part of safe manoeuvring on the road. Child cyclists, in particular, might have difficulties performing safety gestures on the road or even forget about them, given the lack of cycling experience, road distractions and differences in motor and perceptual-motor abilities compared with adults. To support them, we designed two methods to remind about safety gestures while cycling. The first method employs an icon-based reminder in heads-up display (HUD) glasses and the second combines vibration on the handlebar and ambient light in the helmet. We investigated the performance of both methods in a controlled test-track experiment with 18 children using a mid-size tricycle, augmented with a set of sensors to recognize children's behavior in real time. We found that both systems are successful in reminding children about safety gestures and have their unique advantages and disadvantages.
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| 6. |
- Wallbaum, Torben, et al.
(författare)
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A real-time distributed toolkit to ease children’s exploration of IOT
- 2020
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Ingår i: Proceedings of the 11th Nordic Conference on Human-Computer Interaction. - New York, NY, USA : Association for Computing Machinery (ACM). ; , s. 1-9
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Konferensbidrag (refereegranskat)abstract
- Children are increasingly exposed to everyday objects with embedded computing and wireless capabilities. However, understanding how these devices collect data, communicate information to other devices, and interpret program instructions is not typically taught to children. Moreover, programming these devices still requires considerable knowledge particularly for primary school children. In this paper, we showcase a distributed toolkit of various sensors and output modules, each with wireless capability, that can independently or in concert work together. This is enabled by a programming environment with a real-time interpreter that can connect and update the state of the modules on-the-fly. We tested the system with 32 primary school children in an after-school study and found that the majority of children knew how to couple sensors to different output modalities to solve various devised scenarios. For some children, the toolkit was also used to build IoT games or fulfill personal tasks.
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| 7. |
- Wallbaum, Torben, et al.
(författare)
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Supporting communication between grandparents and grandchildren through tangible storytelling systems
- 2018
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Ingår i: CHI 2018 - Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems: Engage with CHI. - New York, NY, USA : Association for Computing Machinery (ACM).
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Konferensbidrag (refereegranskat)abstract
- Grandparents and grandchildren that live apart often rely on communication technologies, such as messengers, video conferencing, and phone calls for maintaining relationships. While some of these systems are challenging for grandparents, others are less engaging for children. To facilitate communication, we developed StoryBox, a tangible device that allows sharing photos, tangible artifacts, and audio recordings of everyday life. We conducted a preliminary study with two families to identify design issues, and further refine the prototype. Subsequently, we conducted a field study with four families for up to four weeks to better understand real-world use and examine inter-generational connectedness. We found that StoryBox was accessible, simple, and helped bridge the technological gap between grandparents and grandchildren. Children communicated asynchronously in a playful and idiosyncratic manner, and grandparents shared past family memories. We provide insights on how to ease communication between different generations, engage them in sharing activities, and strengthen family relationships.
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