Learn More
Slipping while clicking and accidental clicks are a source of errors for mouse users with motor impairments. The Steady Clicks assistance feature suppresses these errors by freezing the cursor during mouse clicks, preventing overlapping button presses and suppressing clicks made while the mouse is moving at a high velocity. Evaluation with eleven target(More)
Since not all persons interact with computer systems in the same way, computer systems should not interact with all individuals in the same way. This paper presents a significant step in automatically detecting characteristics of persons with a wide range of abilities based on observing their user input events. Three datasets are used to build learned(More)
Overlap errors, in which two keys are pressed down at once, are a common typing error for people with motor disabilities. Keyguards are a commonly suggested means to may reduce overlap errors. However, they are also unpopular with many users. We present an alternative to the keyguard, a software filter which targets overlap errors. Basic, keystroke(More)
The Gsearch system allows the selection of sentences by syntactic criteria from text corpora, even when these corpora contain no prior syntactic markup. This is achieved by means of a fast chart parser, which takes as input a grammar and a search expression specified by the user. Gsearch features a modular architecture that can be extended straightforwardly(More)
Low-end mobile phones are becoming generally available throughout the world and the main window onto the Web. A large constituency for Web access is being created whose experience Web designers are not familiar with, particularly because of the central role of auditory, rather than visual access. This is analogous to problems faced by visually impaired(More)
Point-and-click tasks are known to present difficulties to users with physical impairments, particularly motor- or vision-based, and to older adults. This paper presents the results of a study to quantify and understand the effects of age and impairment on the ability to perform such tasks. Results from four separate user groups are presented and compared(More)