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Harald Rau

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Publications by Harald Rau (bibliography)

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1996
 
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Rau, Harald and Skiena, Steven (1996): Dialing for Documents: An Experiment in Information Theory. In J. Vis. Lang. Comput., 7 (1) pp. 79-95.

1994
 
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Rau, Harald and Skiena, Steven S. (1994): Dialing for Documents: An Experiment in Information Theory. In: Szekely, Pedro (ed.) Proceedings of the 7th annual ACM symposium on User interface software and technology November 02 - 04, 1994, Marina del Rey, California, United States. pp. 147-155.

Standard telephone keypads are labeled with letters of the alphabet, enabling users to enter textual data for a variety of possible applications. However, the overloading of three letters on a single key creates a potential ambiguity as to which character was intended, which must be resolved for unambiguous text entry. Existing systems all use pairs of keypresses to spell out single letters, but are extremely cumbersome and frustrating to use. Instead, we propose single-stroke text entry on telephone keypads, with the ambiguity resolved by exploiting information-theoretic constraints. We develop algorithms capable of correctly identifying up to 99% of the characters in typical English text, sufficient for such applications as telephones for the hearing-impaired, E-mail without a terminal, and advanced voice-response systems.

© All rights reserved Rau and Skiena and/or ACM Press

 
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Changes to this page (author)

14 Apr 2011: Modified
28 Apr 2003: Added

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Featured chapter

Marc Hassenzahl explains the fascinating concept of User Experience and Experience Design. Commentaries by Don Norman, Eric Reiss, Mark Blythe, and Whitney Hess

User Experience and Experience Design !

 
 

Our Latest Books

 
 
Gamification at Work: Designing Engaging Business Software
by Janaki Mythily Kumar and Mario Herger
start reading
 
 
 
 
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by Brian Whitworth and Adnan Ahmad
start reading
 
 
 
 
The Encyclopedia of Human-Computer Interaction, 2nd Ed.
by Mads Soegaard and Rikke Friis Dam
start reading