Sensing techniques for mobile interaction
UIST '00 Proceedings of the 13th annual ACM symposium on User interface software and technology
Language modeling for soft keyboards
Proceedings of the 7th international conference on Intelligent user interfaces
TiltType: accelerometer-supported text entry for very small devices
Proceedings of the 15th annual ACM symposium on User interface software and technology
Overcoming the Lack of Screen Space on Mobile Computers
Personal and Ubiquitous Computing
On-line personalization of a touch screen based keyboard
Proceedings of the 8th international conference on Intelligent user interfaces
A piece of butter on the PDA display
CHI '01 Extended Abstracts on Human Factors in Computing Systems
Metrics for text entry research: an evaluation of MSD and KSPC, and a new unified error metric
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Mobile HCI '02 Proceedings of the 4th International Symposium on Mobile Human-Computer Interaction
Phrase sets for evaluating text entry techniques
CHI '03 Extended Abstracts on Human Factors in Computing Systems
TiltText: using tilt for text input to mobile phones
Proceedings of the 16th annual ACM symposium on User interface software and technology
Examining mobile phone text legibility while walking
CHI '04 Extended Abstracts on Human Factors in Computing Systems
SHARK2: a large vocabulary shorthand writing system for pen-based computers
Proceedings of the 17th annual ACM symposium on User interface software and technology
Relaxing stylus typing precision by geometric pattern matching
Proceedings of the 10th international conference on Intelligent user interfaces
Gait phase effects in mobile interaction
CHI '05 Extended Abstracts on Human Factors in Computing Systems
Mobile text entry: relationship between walking speed and text input task difficulty
Proceedings of the 7th international conference on Human computer interaction with mobile devices & services
Proceedings of the 7th international conference on Human computer interaction with mobile devices & services
Removing camera shake from a single photograph
ACM SIGGRAPH 2006 Papers
Analyzing the input stream for character- level errors in unconstrained text entry evaluations
ACM Transactions on Computer-Human Interaction (TOCHI)
Capturing the effects of context on human performance in mobile computing systems
Personal and Ubiquitous Computing
How do people tap when walking? An empirical investigation of nomadic data entry
International Journal of Human-Computer Studies
Experiments in Mobile User Interface Adaptation for Walking Users
IPC '07 Proceedings of the The 2007 International Conference on Intelligent Pervasive Computing
TrueKeys: identifying and correcting typing errors for people with motor impairments
Proceedings of the 13th international conference on Intelligent user interfaces
Getting off the treadmill: evaluating walking user interfaces for mobile devices in public spaces
Proceedings of the 10th international conference on Human computer interaction with mobile devices and services
NoShake: Content stabilization for shaking screens of mobile devices
PERCOM '09 Proceedings of the 2009 IEEE International Conference on Pervasive Computing and Communications
BigKey: A Virtual Keyboard for Mobile Devices
Proceedings of the 13th International Conference on Human-Computer Interaction. Part III: Ubiquitous and Intelligent Interaction
Usability guided key-target resizing for soft keyboards
Proceedings of the 15th international conference on Intelligent user interfaces
Small-device users situationally impaired by input
Computers in Human Behavior
GesText: accelerometer-based gestural text-entry systems
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
CATKey: customizable and adaptable touchscreen keyboard with bubble cursor-like visual feedback
INTERACT'07 Proceedings of the 11th IFIP TC 13 international conference on Human-computer interaction
Investigating selection and reading performance on a mobile phone while walking
Proceedings of the 12th international conference on Human computer interaction with mobile devices and services
The aligned rank transform for nonparametric factorial analyses using only anova procedures
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Experimental analysis of touch-screen gesture designs in mobile environments
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Typing on flat glass: examining ten-finger expert typing patterns on touch surfaces
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Text text revolution: a game that improves text entry on mobile touchscreen keyboards
Pervasive'11 Proceedings of the 9th international conference on Pervasive computing
GripSense: using built-in sensors to detect hand posture and pressure on commodity mobile phones
Proceedings of the 25th annual ACM symposium on User interface software and technology
Machine learning models for uncertain interaction
Adjunct proceedings of the 25th annual ACM symposium on User interface software and technology
CrashAlert: enhancing peripheral alertness for eyes-busy mobile interaction while walking
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The relationship between encumbrance and walking speed on mobile interactions
CHI '13 Extended Abstracts on Human Factors in Computing Systems
SIG: NVI (non-visual interaction)
CHI '13 Extended Abstracts on Human Factors in Computing Systems
Grand challenges in text entry
CHI '13 Extended Abstracts on Human Factors in Computing Systems
Improving two-thumb text entry on touchscreen devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
iGrasp: grasp-based adaptive keyboard for mobile devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Upright or sideways?: analysis of smartphone postures in the wild
Proceedings of the 15th international conference on Human-computer interaction with mobile devices and services
Proceedings of the 15th international conference on Human-computer interaction with mobile devices and services
Surround-see: enabling peripheral vision on smartphones during active use
Proceedings of the 26th annual ACM symposium on User interface software and technology
Tilt-Based support for multimodal text entry on touchscreen smartphones: using pitch and roll
UAHCI'13 Proceedings of the 7th international conference on Universal Access in Human-Computer Interaction: applications and services for quality of life - Volume Part III
Motion and context sensing techniques for pen computing
Proceedings of Graphics Interface 2013
Exploring tilt-based text input for mobile devices with teenagers
BCS-HCI '13 Proceedings of the 27th International BCS Human Computer Interaction Conference
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The lack of tactile feedback on touch screens makes typing difficult, a challenge exacerbated when situational impairments like walking vibration and divided attention arise in mobile settings. We introduce WalkType, an adaptive text entry system that leverages the mobile device's built-in tri-axis accelerometer to compensate for extraneous movement while walking. WalkType's classification model uses the displacement and acceleration of the device, and inference about the user's footsteps. Additionally, WalkType models finger-touch location and finger distance traveled on the screen, features that increase overall accuracy regardless of movement. The final model was built on typing data collected from 16 participants. In a study comparing WalkType to a control condition, WalkType reduced uncorrected errors by 45.2% and increased typing speed by 12.9% for walking participants.