Proceedings of the 14th annual ACM symposium on User interface software and technology - UIST '01, 2001
In this paper, we describe Kimura, an augmented office environment to support common multitasking... more In this paper, we describe Kimura, an augmented office environment to support common multitasking practices. Previous systems, such as Rooms, limit users by constraining the interaction to the desktop monitor. In Kimura, we leverage interactive projected peripheral displays to ...
Large, high-resolution displays enable efficient visualization of large datasets. To interact wit... more Large, high-resolution displays enable efficient visualization of large datasets. To interact with these large datasets, touchless interfaces can support fluid interaction at different distances from the display. Touchless gestures, however, lack haptic feedback. Hence, users' gestures may unintentionally move off the interface elements and require additional physical effort to perform intended actions. To address this problem, we propose data-morphed topographies for touchless interactions: constraints on users' cursor movements that guide touchless interaction along the structure of the visualized data. To exemplify the potential of our concept, we envision applying three data-morphed topographies-holes, pits, and valleysto common problem-solving tasks in visual analytics.
ABSTRACT We present the sharing palette, a desktop user interface for sharing files and services.... more ABSTRACT We present the sharing palette, a desktop user interface for sharing files and services. The UI design was informed by a study of existing file sharing practices and two findings in particular: (1) sharing interfaces need to provide flexible, intuitive mechanisms for specifying which individuals and groups can see and use files and services, and (2) they should provide a visually persistent record of which files and services are being shared and with whom.
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems - CHI '13, 2013
ABSTRACT We present an alternative approach to the design of personal informatics systems: instea... more ABSTRACT We present an alternative approach to the design of personal informatics systems: instead of motivating people to examine their own behaviors, this approach promotes awareness of and reflection on the infrastructures behind personal informatics and the modes of engagement that they promote. Specifically, this paper presents an interface that displays personal web browsing data. The interface aims to reveal underlying infrastructure using several methods: drawing attention to the scope of mined data by displaying deliberately selected sensitive data, using purposeful malfunction as a way to encourage reverse engineering, and challenging normative expectations around data mining by displaying information in unconventional ways. Qualitative results from a two-week deployment show that these strategies can raise people's awareness about data mining, promote efficacy and control over personal data, and inspire reflection on the goals and assumptions embedded in infrastructures for personal data analytics.
Ictus supports the study and preparation of musical scores by semi-novice conductors. It does so ... more Ictus supports the study and preparation of musical scores by semi-novice conductors. It does so by representing the complex analytical processes in which professional conductors routinely engage. Through iterative design and prototyping and with feedback from expert conductors, we have developed a prototyped system for use as a learning tool. This paper presents a brief overview of the complexities of
Proceedings of the 24th annual ACM symposium on User interface software and technology - UIST '11, 2011
Workplace collaboration often requires interruptions, which can happen at inopportune times. Desi... more Workplace collaboration often requires interruptions, which can happen at inopportune times. Designing a successful availability-sharing system requires finding the right balance to optimize the benefits and reduce costs for both the interrupter and interruptee. In this paper, we examine the design space of availability-sharing systems and identify six relevant design dimensions: abstraction, presentation, information delivery, symmetry, obtrusiveness and temporal gradient. We describe these dimensions in terms of the tensions between interrupters and interruptees revealed in previous studies of workplace collaboration and deployments of awareness systems. As a demonstration of the utility of our design space, we introduce InterruptMe, a novel availability-sharing system that represents a previously unexplored point in the design space and that balances the tensions between interrupters and interruptees. Inter-ruptMe differs from previous systems in that it displays availability information only when needed by monitoring implicit inputs from the system's users, implements a traceable asymmetry structure, and introduces the notion of per-communications channel availability.
Proceedings of the ACM 2008 conference on Computer supported cooperative work - CSCW '08, 2008
Abstract In any collaborative system, there are both symmetries and asymmetries present in the de... more Abstract In any collaborative system, there are both symmetries and asymmetries present in the design of the technology and in the ways that technology is appropriated. Yet media space research tends to focus more on supporting and fostering the symmetries than the asymmetries. Throughout more than 20 years of media space research, the pursuit of increased symmetry, whether achieved through technical or social means, has been a recurrent theme. The research literature on the use of contemporary awareness systems, ...
Proceedings of the 13th international conference on Ubiquitous computing - UbiComp '11, 2011
Workplace collaboration often requires interruptions, which can happen at inopportune times. Shar... more Workplace collaboration often requires interruptions, which can happen at inopportune times. Sharing availability information can reduce many of these untimely interruptions. However, designing a successful availability-sharing system requires finding the right balance to maximize the benefits and reduce costs for both the interrupter and interruptee. The main challenges for finding such balance lie in the acquisition of availability information from the interruptee and its delivery to the interrupter. In this demonstration, we show how common technical approaches in ubicomp can address some of the problems typically encountered in availability sharing. We present InterruptMe, a novel availability sharing system that uses sensor information to calculate multiple availability measures for each interruptee and that delivers this information in the periphery of the interrupter's attention by using a projected peripheral display and monitoring implicit inputs to the system.
Proceedings of the SIGCHI conference on Human factors in computing systems - CHI '05, 2005
Are the object manipulation techniques traditionally used in head-mounted displays (HMDs) applica... more Are the object manipulation techniques traditionally used in head-mounted displays (HMDs) applicable to augmented reality based projection systems? This paper examines the differences between HMD-and projector/camerabased AR interfaces in the light of a manipulation task involving documents and applications projected on common office surfaces such as tables, walls, cabinets, and floor. We report a Wizard of Oz study where subjects were first asked to create gesture/voice commands to move 2D objects on those surfaces and then exposed to gestures created by the authors. Among the options, subjects could select the object to be manipulated using voice command; touching, pointing, and grabbing gesture; or a virtual mouse. The results show a strong preference for a manipulation interface based on pointing gestures using small hand movements and involving minimal body movement. Direct touching of the object was also common when the object being manipulated was within the subjects' arm reach. Based on these results, we expect that the preferred interface resembles, in many ways, the egocentric model traditionally used in AR.
ABSTRACT How do you design for sustained engagement in the context of supporting or encouraging h... more ABSTRACT How do you design for sustained engagement in the context of supporting or encouraging health and well-being? Two studies of a mobile social-health application reveal how different aspects of the sociotechnical design affect user engagement with the system.
The Kimura system augments and integrates independent tools into a pervasive computing system tha... more The Kimura system augments and integrates independent tools into a pervasive computing system that monitors a user's interactions with the computer, an electronic whiteboard, and a variety of networked peripheral devices and data sources.
Proceedings of the 14th annual ACM symposium on User interface software and technology - UIST '01, 2001
In this paper, we describe Kimura, an augmented office environment to support common multitasking... more In this paper, we describe Kimura, an augmented office environment to support common multitasking practices. Previous systems, such as Rooms, limit users by constraining the interaction to the desktop monitor. In Kimura, we leverage interactive projected peripheral displays to ...
Large, high-resolution displays enable efficient visualization of large datasets. To interact wit... more Large, high-resolution displays enable efficient visualization of large datasets. To interact with these large datasets, touchless interfaces can support fluid interaction at different distances from the display. Touchless gestures, however, lack haptic feedback. Hence, users' gestures may unintentionally move off the interface elements and require additional physical effort to perform intended actions. To address this problem, we propose data-morphed topographies for touchless interactions: constraints on users' cursor movements that guide touchless interaction along the structure of the visualized data. To exemplify the potential of our concept, we envision applying three data-morphed topographies-holes, pits, and valleysto common problem-solving tasks in visual analytics.
ABSTRACT We present the sharing palette, a desktop user interface for sharing files and services.... more ABSTRACT We present the sharing palette, a desktop user interface for sharing files and services. The UI design was informed by a study of existing file sharing practices and two findings in particular: (1) sharing interfaces need to provide flexible, intuitive mechanisms for specifying which individuals and groups can see and use files and services, and (2) they should provide a visually persistent record of which files and services are being shared and with whom.
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems - CHI '13, 2013
ABSTRACT We present an alternative approach to the design of personal informatics systems: instea... more ABSTRACT We present an alternative approach to the design of personal informatics systems: instead of motivating people to examine their own behaviors, this approach promotes awareness of and reflection on the infrastructures behind personal informatics and the modes of engagement that they promote. Specifically, this paper presents an interface that displays personal web browsing data. The interface aims to reveal underlying infrastructure using several methods: drawing attention to the scope of mined data by displaying deliberately selected sensitive data, using purposeful malfunction as a way to encourage reverse engineering, and challenging normative expectations around data mining by displaying information in unconventional ways. Qualitative results from a two-week deployment show that these strategies can raise people's awareness about data mining, promote efficacy and control over personal data, and inspire reflection on the goals and assumptions embedded in infrastructures for personal data analytics.
Ictus supports the study and preparation of musical scores by semi-novice conductors. It does so ... more Ictus supports the study and preparation of musical scores by semi-novice conductors. It does so by representing the complex analytical processes in which professional conductors routinely engage. Through iterative design and prototyping and with feedback from expert conductors, we have developed a prototyped system for use as a learning tool. This paper presents a brief overview of the complexities of
Proceedings of the 24th annual ACM symposium on User interface software and technology - UIST '11, 2011
Workplace collaboration often requires interruptions, which can happen at inopportune times. Desi... more Workplace collaboration often requires interruptions, which can happen at inopportune times. Designing a successful availability-sharing system requires finding the right balance to optimize the benefits and reduce costs for both the interrupter and interruptee. In this paper, we examine the design space of availability-sharing systems and identify six relevant design dimensions: abstraction, presentation, information delivery, symmetry, obtrusiveness and temporal gradient. We describe these dimensions in terms of the tensions between interrupters and interruptees revealed in previous studies of workplace collaboration and deployments of awareness systems. As a demonstration of the utility of our design space, we introduce InterruptMe, a novel availability-sharing system that represents a previously unexplored point in the design space and that balances the tensions between interrupters and interruptees. Inter-ruptMe differs from previous systems in that it displays availability information only when needed by monitoring implicit inputs from the system's users, implements a traceable asymmetry structure, and introduces the notion of per-communications channel availability.
Proceedings of the ACM 2008 conference on Computer supported cooperative work - CSCW '08, 2008
Abstract In any collaborative system, there are both symmetries and asymmetries present in the de... more Abstract In any collaborative system, there are both symmetries and asymmetries present in the design of the technology and in the ways that technology is appropriated. Yet media space research tends to focus more on supporting and fostering the symmetries than the asymmetries. Throughout more than 20 years of media space research, the pursuit of increased symmetry, whether achieved through technical or social means, has been a recurrent theme. The research literature on the use of contemporary awareness systems, ...
Proceedings of the 13th international conference on Ubiquitous computing - UbiComp '11, 2011
Workplace collaboration often requires interruptions, which can happen at inopportune times. Shar... more Workplace collaboration often requires interruptions, which can happen at inopportune times. Sharing availability information can reduce many of these untimely interruptions. However, designing a successful availability-sharing system requires finding the right balance to maximize the benefits and reduce costs for both the interrupter and interruptee. The main challenges for finding such balance lie in the acquisition of availability information from the interruptee and its delivery to the interrupter. In this demonstration, we show how common technical approaches in ubicomp can address some of the problems typically encountered in availability sharing. We present InterruptMe, a novel availability sharing system that uses sensor information to calculate multiple availability measures for each interruptee and that delivers this information in the periphery of the interrupter's attention by using a projected peripheral display and monitoring implicit inputs to the system.
Proceedings of the SIGCHI conference on Human factors in computing systems - CHI '05, 2005
Are the object manipulation techniques traditionally used in head-mounted displays (HMDs) applica... more Are the object manipulation techniques traditionally used in head-mounted displays (HMDs) applicable to augmented reality based projection systems? This paper examines the differences between HMD-and projector/camerabased AR interfaces in the light of a manipulation task involving documents and applications projected on common office surfaces such as tables, walls, cabinets, and floor. We report a Wizard of Oz study where subjects were first asked to create gesture/voice commands to move 2D objects on those surfaces and then exposed to gestures created by the authors. Among the options, subjects could select the object to be manipulated using voice command; touching, pointing, and grabbing gesture; or a virtual mouse. The results show a strong preference for a manipulation interface based on pointing gestures using small hand movements and involving minimal body movement. Direct touching of the object was also common when the object being manipulated was within the subjects' arm reach. Based on these results, we expect that the preferred interface resembles, in many ways, the egocentric model traditionally used in AR.
ABSTRACT How do you design for sustained engagement in the context of supporting or encouraging h... more ABSTRACT How do you design for sustained engagement in the context of supporting or encouraging health and well-being? Two studies of a mobile social-health application reveal how different aspects of the sociotechnical design affect user engagement with the system.
The Kimura system augments and integrates independent tools into a pervasive computing system tha... more The Kimura system augments and integrates independent tools into a pervasive computing system that monitors a user's interactions with the computer, an electronic whiteboard, and a variety of networked peripheral devices and data sources.
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Papers by Stephen Voida