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Displaying 1-50 out of 90 total
GroupEnergyTable: An Interactive Tabletop for Energy Conservation
Found in: IEEE Pervasive Computing
By Katherine M. Everitt,Peter F. Oven,Shwetak N. Patel,James A. Landay
Issue Date:July 2012
pp. 46-53
The GroupEnergyTable is an interactive tabletop that lets users explore shared electricity and transportation data, view energy tips, and set goals. A two-month study shows how the GroupEnergyTable can help decrease electricity use and change travel habits...
 
Guest Editors' Introduction: Cross-Reality Environments
Found in: IEEE Pervasive Computing
By Joseph A. Paradiso, James A. Landay
Issue Date:July 2009
pp. 14-15
In this article, we define cross-reality as the union between ubiquitous sensor/actuator networks and shared online virtual worlds—a place where collective human perception meets the machines' view of pervasive computing. We describe how five of the articl...
 
Designing for Behavior Change in Everyday Life
Found in: Computer
By Sunny Consolvo, James A. Landay, David W. McDonald
Issue Date:May 2009
pp. 86-89
UbiFit uses on-body sensing, real-time activity inference, and a personal, mobile display to encourage people to incorporate regular and varied physical activity into everyday life.
 
Guest Editors' Introduction: Smarter Phones
Found in: IEEE Pervasive Computing
By James A. Landay, Anthony D. Joseph, Franklin Reynolds
Issue Date:April 2009
pp. 12-13
Mobile phones tend to be very personal devices. It's this property, as much as anything, that makes them so interesting to pervasive computing and offers the potential to enable whole new classes of adaptive, context-aware applications. This special issue'...
 
Into the Wild: Low-Cost Ubicomp Prototype Testing
Found in: Computer
By Yangi Li, James A. Landay
Issue Date:June 2008
pp. 94-97
ActivityStudio lets designers easily manage moderate-scale in situ user tests of ubicomp applications.
 
Design Challenges and Principles for Wizard of Oz Testing of Location-Enhanced Applications
Found in: IEEE Pervasive Computing
By Yang Li, Jason I. Hong, James A. Landay
Issue Date:April 2007
pp. 70-75
Location-enhanced applications are the most widely adopted type of ubicomp application. However, they're hard to design and test. New Wizard of Oz techniques for testing location-enhanced applications allow efficient testing of prototypes in the early stag...
 
Guest Editors' Introduction: Rapid Prototyping for Ubiquitous Computing
Found in: IEEE Pervasive Computing
By Nigel Davies, James Landay, Scott Hudson, Albrecht Schmidt
Issue Date:October 2005
pp. 15-17
This issue's articles represent some of the best recent advances in applying rapid prototyping to ubiquitous systems development.
 
Forms of Expression for Designing Visual Languages for Animation
Found in: Visual Languages and Human-Centric Computing, IEEE Symposium on
By Richard C. Davis, James A. Landay
Issue Date:September 2005
pp. 327-328
We present further steps in our research into visual languages for animation. Animation is a rich mode of communication that is currently accessible to few, because animation systems are complex. Some systems try to make animation simple but put severe lim...
   
A Visual Language for Animating Sketches
Found in: Visual Languages and Human-Centric Computing, IEEE Symposium on
By Richard C. Davis, James A. Landay
Issue Date:September 2004
pp. 273-274
We present our research into visual languages for animating sketches. Animation is a rich mode of communication that is currently accessible to few. Simple animation systems exist, but severely restrict the types of motion that can be represented. Our fiel...
   
Embarking on Multimodal Interface Design
Found in: Multimodal Interfaces, IEEE International Conference on
By Anoop K. Sinha, James A. Landay
Issue Date:October 2002
pp. 355
Designers are increasingly faced with the challenge of targeting multimodal applications, those that span heterogeneous devices and use multimodal input, but do not have tools to support them. We studied the early stage work practices of professional multi...
 
Sketching Interfaces: Toward More Human Interface Design
Found in: Computer
By James A. Landay, Brad A. Myers
Issue Date:March 2001
pp. 56-64
<p>Today people expect computers to perform not only obvious computational tasks but also to assist in people-oriented tasks. This shift is causing user-interface (UI) researchers to explore methods that bend computers to people's way of interacting ...
 
Gestalt: integrated support for implementation and analysis in machine learning
Found in: Proceedings of the 23nd annual ACM symposium on User interface software and technology (UIST '10)
By Andrew J. Ko, James Fogarty, James Landay, Kayur Patel, Naomi Bancroft, Steven M. Drucker
Issue Date:October 2010
pp. 37-46
We present Gestalt, a development environment designed to support the process of applying machine learning. While traditional programming environments focus on source code, we explicitly support both code and data. Gestalt allows developers to implement a ...
     
VoiceLabel: using speech to label mobile sensor data
Found in: Proceedings of the 10th international conference on Multimodal interfaces (IMCI '08)
By Jacob O. Wobbrock, James A. Landay, James Fogarty, Jonathan Lester, Kayur Patel, Susumu Harada, T. Scott Saponas
Issue Date:October 2008
pp. 203-204
Many mobile machine learning applications require collecting and labeling data, and a traditional GUI on a mobile device may not be an appropriate or viable method for this task. This paper presents an alternative approach to mobile labeling of sensor data...
     
Employing patterns and layers for early-stage design and prototyping of cross-device user interfaces
Found in: Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems (CHI '08)
By James A. Landay, James Lin
Issue Date:April 2008
pp. 49-54
Designing UIs that run across multiple devices is increasingly important. To address this, we have created a prototyping tool called Damask, which targets web UIs that run on PCs and mobile phones, and prompt-and-response style voice UIs. In Damask, design...
     
Investigating statistical machine learning as a tool for software development
Found in: Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems (CHI '08)
By Beverly Harrison, James A. Landay, James Fogarty, Kayur Patel
Issue Date:April 2008
pp. 49-54
As statistical machine learning algorithms and techniques continue to mature, many researchers and developers see statistical machine learning not only as a topic of expert study, but also as a tool for software development. Extensive prior work has studie...
     
Access control by testing for shared knowledge
Found in: Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems (CHI '08)
By James A. Landay, James Fogarty, Michael Toomim, Xianhang Zhang
Issue Date:April 2008
pp. 49-54
Controlling the privacy of online content is difficult and often confusing. We present a social access control where users devise simple questions testing shared knowledge instead of constructing authenticated accounts and explicit access control rules. We...
     
Development and evaluation of emerging design patterns for ubiquitous computing
Found in: Proceedings of the 2004 conference on Designing interactive systems: processes, practices, methods, and techniques (DIS '04)
By Alan L. Liu, Eric S. Chung, James A. Landay, James Lin, Jason I. Hong, Madhu K. Prabaker
Issue Date:August 2004
pp. 233-242
Design patterns are a format for capturing and sharing design knowledge. In this paper, we look at a new domain for design patterns, namely ubiquitous computing. The overall goal of this work is to aid practice by speeding up the diffusion of new interacti...
     
A visual language for sketching large and complex interactive designs
Found in: Proceedings of the SIGCHI conference on Human factors in computing systems: Changing our world, changing ourselves (CHI '02)
By James A. Landay, James Lin, Michael Thomsen
Issue Date:April 2002
pp. 307-314
Informal, sketch-based design tools closely match the work practices of user interface designers. Current tools, however, are limited in the size and complexity of interaction that can be specified. We have created an advanced sketch-based visual language ...
     
End-user perceptions of formal and informal representations of web sites
Found in: CHI '01 extended abstracts on Human factors in computer systems (CHI '01)
By Francis C. Li, James A. Landay, James Lin, Jason I. Hong
Issue Date:March 2001
pp. 385-386
Web site designers have expressed concerns that formal, cleaned-up representations of early ideas cause end-users to focus on inappropriate details. It is believed that the high-fidelity of formal representations cause end-users to believe a design is more...
     
DENIM: an informal tool for early stage web site design
Found in: CHI '01 extended abstracts on Human factors in computer systems (CHI '01)
By James A. Landay, James Lin, Jason I. Hong, Mark W. Newman
Issue Date:March 2001
pp. 205-206
DENIM is a system that helps web site designers in the early stages of design. DENIM supports sketching input; allows design at different refinement levels--site map, storyboard, and individual page; and unifies the levels through zooming. The design of DE...
     
DENIM: finding a tighter fit between tools and practice for Web site design
Found in: Proceedings of the SIGCHI conference on Human factors in computing systems (CHI '00)
By James A. Landay, James Lin, Jason I. Hong, Mark W. Newman
Issue Date:April 2000
pp. 510-517
Through a study of web site design practice, we observed that web site designers design sites at different levels of refinement---site map, storyboard, and individual page---and that designers sketch at all levels during the early stages of design. However...
     
NotePals: lightweight note sharing by the group, for the group
Found in: Proceedings of the SIGCHI conference on Human factors in computing systems: the CHI is the limit (CHI '99)
By Ben Schleimer, Bill N. Schilit, Charles B. Morrey, Frances C. Li, James A. Landay, James Lin, Jonathan Huang, Morgan N. Price, Rebecca B. Lee, Richard C. Davis, Victor Chen
Issue Date:May 1999
pp. 338-345
We present an approach to control information flow in object-oriented systems. The decision of whether an informatin flow is permitted or denied depends on both the authorizations specified on the objects and the process by which information is obtained an...
     
A framework for sharing handwritten notes
Found in: Proceedings of the 11th annual ACM symposium on User interface software and technology (UIST '98)
By Bill N. Schilit, James A. Landay, James Lin, Jason A. Brotherton, Morgan N. Price, Richard C. Davis
Issue Date:November 1998
pp. 119-120
This paper describes a Computer Aided Design system for sketching free-form polygonal surfaces such as terrains and other natural objects. The user manipulates two 3D position and orientation trackers with three buttons, one for each hand. Each hand has a ...
     
Cascade: crowdsourcing taxonomy creation
Found in: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '13)
By Daniel S. Weld, Darren Edge, Greg Little, James A. Landay, Lydia B. Chilton
Issue Date:April 2013
pp. 1999-2008
Taxonomies are a useful and ubiquitous way of organizing information. However, creating organizational hierarchies is difficult because the process requires a global understanding of the objects to be categorized. Usually one is created by an individual or...
     
Hero: designing learning tools to increase parental involvement in elementary education in china
Found in: CHI '13 Extended Abstracts on Human Factors in Computing Systems (CHI EA '13)
By Alexis Hope, James A. Landay, Jin Huang, Yoel Sumitro, Yuanchun Shi, Yuhang Zhao
Issue Date:April 2013
pp. 637-642
In this paper, we present the design of Hero, a suite of learning tools that combine teacher-created extracurricular challenges with in-class motivational tools to help parents become more involved in their child's education, while also engaging students i...
     
MicroMandarin: mobile language learning in context
Found in: Proceedings of the 2011 annual conference on Human factors in computing systems (CHI '11)
By Darren Edge, Elly Searle, James A. Landay, Jing Zhao, Kevin Chiu
Issue Date:May 2011
pp. 3169-3178
Learning a new language is hard, but learning to use it confidently in conversations with native speakers is even harder. From our field research with language learners, with support from Cognitive Psychology and Second Language Acquisition, we argue for t...
     
Utility of human-computer interactions: toward a science of preference measurement
Found in: Proceedings of the 2011 annual conference on Human factors in computing systems (CHI '11)
By Claus Portner, James Landay, Michael Toomim, Travis Kriplean
Issue Date:May 2011
pp. 2275-2284
The success of a computer system depends upon a user choosing it, but the field of Human-Computer Interaction has little ability to predict this user choice. We present a new method that measures user choice, and quantifies it as a measure of utility. Our ...
     
Activity-based Ubicomp: a new research basis for the future of human-computer interaction
Found in: International Conference on Multimodal Interfaces and the Workshop on Machine Learning for Multimodal Interaction (ICMI-MLMI '10)
By James Landay
Issue Date:November 2010
pp. 1-1
Ubiquitous computing (Ubicomp) is bringing computing off the desktop and into our everyday lives. For example, an interactive display can be used by the family of an elder to stay in constant touch with the elder's everyday wellbeing, or by a group to visu...
     
Measuring utility of human-computer interaction
Found in: Proceedings of the ACM SIGKDD Workshop on Human Computation (HCOMP '10)
By James A. Landay, Michael Toomim
Issue Date:July 2010
pp. 53-53
Human Computation, along with much of the Internet, only works when humans find tasks fun, enjoyable, or valuable enough to outweigh the time and effort they require to complete. The more value, or utility, that a task and interface provides, the more "wor...
     
The design of eco-feedback technology
Found in: Proceedings of the 28th international conference on Human factors in computing systems (CHI '10)
By James Landay, Jon Froehlich, Leah Findlater
Issue Date:April 2010
pp. 1999-2008
Eco-feedback technology provides feedback on individual or group behaviors with a goal of reducing environmental impact. The history of eco-feedback extends back more than 40 years to the origins of environmental psychology. Despite its stated purpose, few...
     
Making muscle-computer interfaces more practical
Found in: Proceedings of the 28th international conference on Human factors in computing systems (CHI '10)
By Dan Morris, Desney S. Tan, James A. Landay, Jim Turner, T. Scott Saponas
Issue Date:April 2010
pp. 851-854
Recent work in muscle sensing has demonstrated the poten-tial of human-computer interfaces based on finger gestures sensed from electrodes on the upper forearm. While this approach holds much potential, previous work has given little attention to sensing f...
     
FrameWire: a tool for automatically extracting interaction logic from paper prototyping tests
Found in: Proceedings of the 28th international conference on Human factors in computing systems (CHI '10)
By James A. Landay, Katherine Everitt, Morgan Dixon, Xiang Cao, Yang Li
Issue Date:April 2010
pp. 503-512
Paper prototyping offers unique affordances for interface design. However, due to its spontaneous nature and the limitations of paper, it is difficult to distill and communicate a paper prototype design and its user test findings to a wide audience. To add...
     
Technical perspectiveDesign tools for the rest of us
Found in: Communications of the ACM
By James A. Landay
Issue Date:December 2009
pp. 80-80
Integrating computer games into existing CS courses may help attract students to the field, but there are guidelines to be considered.
     
Enabling always-available input with muscle-computer interfaces
Found in: Proceedings of the 22nd annual ACM symposium on User interface software and technology (UIST '09)
By Dan Morris, Desney S. Tan, James A. Landay, Jim Turner, Ravin Balakrishnan, T. Scott Saponas
Issue Date:October 2009
pp. 167-176
Previous work has demonstrated the viability of applying offline analysis to interpret forearm electromyography (EMG) and classify finger gestures on a physical surface. We extend those results to bring us closer to using muscle-computer interfaces for alw...
     
Goal-setting considerations for persuasive technologies that encourage physical activity
Found in: Proceedings of the 4th International Conference on Persuasive Technology (Persuasive '09)
By David W. McDonald, James A. Landay, Predrag Klasnja, Sunny Consolvo
Issue Date:April 2009
pp. 1-32
Goal-setting has been shown to be an effective strategy for changing behavior; therefore employing goal-setting in persuasive technologies could be an effective way to encourage behavior change. In our work, we are developing persuasive technologies to enc...
     
Attaching UI enhancements to websites with end users
Found in: Proceedings of the 27th international conference on Human factors in computing systems (CHI '09)
By Ali Rahimi, Blake Thomson, James A. Landay, Michael Toomim, Mira Dontcheva, Steven M. Drucker
Issue Date:April 2009
pp. 1-4
We present reform, a step toward write-once apply-anywhere user interface enhancements. The reform system envisions roles for both programmers and end users in enhancing existing websites to support new goals. First, a programmer authors a traditional mash...
     
UbiGreen: investigating a mobile tool for tracking and supporting green transportation habits
Found in: Proceedings of the 27th international conference on Human factors in computing systems (CHI '09)
By Beverly Harrison, James A. Landay, Jennifer Mankoff, Jon Froehlich, Predrag Klasnja, Sunny Consolvo, Tawanna Dillahunt
Issue Date:April 2009
pp. 1-4
The greatest contributor of CO2 emissions in the average American household is personal transportation. Because transportation is inherently a mobile activity, mobile devices are well suited to sense and provide feedback about these activities. In this pap...
     
Theory-driven design strategies for technologies that support behavior change in everyday life
Found in: Proceedings of the 27th international conference on Human factors in computing systems (CHI '09)
By David W. McDonald, James A. Landay, Sunny Consolvo
Issue Date:April 2009
pp. 1-4
In this paper, we propose design strategies for persuasive technologies that help people who want to change their everyday behaviors. Our strategies use theory and prior work to substantially extend a set of existing design goals. Our extensions specifical...
     
Longitudinal study of people learning to use continuous voice-based cursor control
Found in: Proceedings of the 27th international conference on Human factors in computing systems (CHI '09)
By Jacob O. Wobbrock, James A. Landay, Jeff A. Bilmes, Jonathan Malkin, Susumu Harada
Issue Date:April 2009
pp. 1-4
We conducted a 2.5 week longitudinal study with five motor impaired (MI) and four non-impaired (NMI) participants, in which they learned to use the Vocal Joystick, a voice-based user interface control system. We found that the participants were able to lea...
     
Flowers or a robot army?: encouraging awareness & activity with personal, mobile displays
Found in: Proceedings of the 10th international conference on Ubiquitous computing (UbiComp '08)
By Daniel Avrahami, David W. McDonald, James A. Landay, Jon Froehlich, Keith Mosher, Louis LeGrand, Predrag Klasnja, Ryan Libby, Sunny Consolvo
Issue Date:September 2008
pp. N/A
Personal, mobile displays, such as those on mobile phones, are ubiquitous, yet for the most part, underutilized. We present results from a field experiment that investigated the effectiveness of these displays as a means for improving awareness of daily li...
     
Activity sensing in the wild: a field trial of ubifit garden
Found in: Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems (CHI '08)
By Anthony LaMarca, Beverly Harrison, David W. McDonald, Ian Smith, James A. Landay, Jon Froehlich, Louis LeGrand, Mike Y. Chen, Predrag Klasnja, Ryan Libby, Sunny Consolvo, Tammy Toscos
Issue Date:April 2008
pp. 49-54
Recent advances in small inexpensive sensors, low-power processing, and activity modeling have enabled applications that use on-body sensing and machine learning to infer people's activities throughout everyday life. To address the growing rate of sedentar...
     
Activity-based prototyping of ubicomp applications for long-lived, everyday human activities
Found in: Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems (CHI '08)
By James A. Landay, Yang Li
Issue Date:April 2008
pp. 49-54
We designed an activity-based prototyping process realized in the ActivityDesigner system that combines the theoretical framework of Activity-Centered Design with traditional iterative design. This process allows designers to leverage human activities as f...
     
K-sketch: a 'kinetic' sketch pad for novice animators
Found in: Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems (CHI '08)
By Brien Colwell, James A. Landay, Richard C. Davis
Issue Date:April 2008
pp. 49-54
Because most animation tools are complex and time-consuming to learn and use, most animations today are created by experts. To help novices create a wide range of animations quickly, we have developed a general-purpose, informal, 2D animation sketching sys...
     
Disambiguating speech commands using physical context
Found in: Proceedings of the 9th international conference on Multimodal interfaces (ICMI '07)
By James A. Landay
Issue Date:November 2007
pp. 247-254
Speech has great potential as an input mechanism for ubiquitous computing. However, the current requirements necessary for accurate speech recognition, such as a quiet environment and a well-positioned and high-quality microphone, are unreasonable to expec...
     
Voicepen: augmenting pen input with simultaneous non-linguisitic vocalization
Found in: Proceedings of the 9th international conference on Multimodal interfaces (ICMI '07)
By James A. Landay
Issue Date:November 2007
pp. 178-185
This paper explores using non-linguistic vocalization as an additional modality to augment digital pen input on a tablet computer. We investigated this through a set of novel interaction techniques and a feasibility study. Typically, digital pen users cont...
     
Activity-based pen computing
Found in: Proceedings of the 4th Eurographics workshop on Sketch-based interfaces and modeling (SBIM '07)
By James A. Landay
Issue Date:August 2007
pp. 48-55
Much of pen-computing research to date has focused on how to properly recognize the end user's strokes. Instead, we advocate an activity-driven approach to designing high-value pen-based applications. This will not only result in pen-based applications bet...
     
SATIN: a toolkit for informal ink-based applications
Found in: ACM SIGGRAPH 2007 courses (SIGGRAPH '07)
By James A. Landay, Jason I. Hong
Issue Date:August 2007
pp. 12-es
Software support for making effective pen-based applications is currently rudimentary. To facilitate the creation of such applications, we have developed SATIN, a Java-based toolkit designed to support the creation of applications that leverage the informa...
     
Increasing the breadth: applying sensors, inference and self-report in field studies with the MyExperience tool
Found in: Proceedings of the 1st international workshop on System evaluation for mobile platforms (MobiEval '07)
By Beverly Harrison, James A. Landay, Jon Froehlich, Mike Y. Chen, Sunny Consolvo
Issue Date:June 2007
pp. 27-27
In this talk, we describe how the MyExperience tool uses sensing, machine inference, and self-report to gather information about human attitudes, behaviors, and mobile device usage. To illustrate this, we focus on four field studies that leverage different...
     
MyExperience: a system for in situ tracing and capturing of user feedback on mobile phones
Found in: Proceedings of the 5th international conference on Mobile systems, applications and services (MobiSys '07)
By Beverly Harrison, James A. Landay, Jon Froehlich, Mike Y. Chen, Sunny Consolvo
Issue Date:June 2007
pp. 57-70
This paper presents MyExperience, a system for capturing both objective and subjective in situ data on mobile computing activities. MyExperience combines the following two techniques: 1) passive logging of device usage, user context, and environmental sens...
     
The vocal joystick:: evaluation of voice-based cursor control techniques
Found in: Proceedings of the 8th international ACM SIGACCESS conference on Computers and accessibility (Assets '06)
By James A. Landay, Jeff A. Bilmes, Jonathan Malkin, Susumu Harada, Xiao Li
Issue Date:October 2006
pp. 197-204
Mouse control has become a crucial aspect of many modern day computer interactions. This poses a challenge for individuals with motor impairments or those whose use of hands are restricted due to situational constraints. We present a system called the Voca...
     
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