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By Kwok-Kee Wei, Krishnamurthy S. Raman on the task-medium fit proposition, Loren Terveen on topically related Web resources, and others Stephen Morrison on non-WIMP user interfaces

Significant essays by means of major overseas laptop scientists.

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Hinckley, E. Horvitz, and M. com; J. Pierce, College of Computing, Georgia Institute of Technology, 801 Atlantic Drive, Atlanta, GA 30332; email: jpierce@cc. edu. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or direct commercial advantage and that copies show this notice on the first page or initial screen of a display along with the full citation. Copyrights for components of this work owned by others than ACM must be honored.

Foreground and Background Interaction with Sensor-Enhanced Mobile Devices • 41 Fig. 4. Portrait/Landscape display mode detection. Top Left: An E-book application automatically rotates and reformats the UI to fit the new screen orientation. Bottom Right: Spreadsheet application. The user can get the most out of a small display. display format. Although holding the device in a different orientation represents an intentional act by the user, we classify Portrait/Landscape switching as a background sensing technique.

2002] also expose challenges for dealing with “Accidents,” raising issues such as how to control or cancel system action in progress; how to disambiguate what to undo in time; and how to intervene when the user makes an obvious error. 2 Mappings and Customization Our system design uses a fixed mapping of the activities and gestures that it recognizes, to a set of services that it provides on the user’s behalf. We chose services that seemed to provide the user with some benefit by being automatically sensed.

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ACM transactions on computer-human interaction (March) by Kwok-Kee Wei, Krishnamurthy S. Raman on the task-medium fit proposition, Loren Terveen on topically related Web resources, and others Stephen Morrison on non-WIMP user interfaces


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