Nada Matic

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We have designed a writer-adaptive character recognition system for on-line characters entered on a touch-terminal. It is based on a Time Delay Neural Network (TDNN) that is rst trained on examples from many writers to recognize digits and uppercase letters. The TDNN without its last layer serves as a preprocessor to an Optimal Hyperplane classier, that can(More)
We present a method for discovering informative patterns from data. With this method, large databases can be reduced to only a few representative data entries. Our framework encompasses also methods for cleaning databases containing corrupted data. Both on-line and off-line algorithms are proposed and experimentally checked on databases of handwritten(More)
We describe a new circular touch gesture for scrolling called ChiralMotion<sup>TM</sup> and report on work to measure its performance. In a study using a document scrolling task, ChiralMotion outperformed linear Virtual Scrolling on a notebook computer TouchPad. Participants also indicated a preference for ChiralMotion in a follow-up questionnaire. We(More)
We present a novel user-friendly Chinese text input method for mobile phones and other small form-factor-devices. Our technique is based on handwritten phonetic input rather than handwritten ideogram input. Using our system, the user is able to write any Chinese characters (Traditional or Simplified) using finger movements on the touch sensitive surface(More)
Even with highly-sensitive touchscreens and emphasis on "designing for touch", small target selection remains difficult. Good touch performance cannot solve the "fat-finger" problem, which results from occlusion and the size disparity between fingers and targets. We propose Hover Cursor, a method to improve small target selection using hover-sensing over a(More)
Current automotive interfaces rely heavily on touchscreen interfaces which leverage simple and intuitive direct touch interaction. Since input and output are co-located, displays have to be positioned within hand's reach. When the display is outside the reach envelope, a touchpad has been used as a control device. Current implementation of touchpads in cars(More)
Force-based touch input is a novel input method for automotive interfaces. It constitutes an efficient and effective way of in-car interaction with an added degree of freedom. Research on force-based in-car interfaces is still scarce. Recommendations such as gesture sets or interaction languages that could guide future implementations have not yet been(More)
With the spread of mobile device fingerprint sensors, there is an opportunity to allow interaction beyond biometric authentication on the same device. The fingerprint sensor can detect simple gestures, enabling an additional gestural input method. We conducted user research sessions with ten people to understand the usefulness of a fingerprint sensor that(More)
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