TY - GEN
T1 - Dialing for documents
T2 - 7th Annual ACM Symposium on User Interface Software and Technology, UIST 1994
AU - Rau, Harald
AU - Skiena, Steven S.
N1 - Publisher Copyright:
©1994 ACM.
PY - 1994/11/2
Y1 - 1994/11/2
N2 - 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, Email without a terminal, and advanced voice-response systems.
AB - 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, Email without a terminal, and advanced voice-response systems.
KW - Information theory
KW - Telephone keypads
KW - Telephones for the hearing-impaired
KW - Viterbi algorithm
UR - https://www.scopus.com/pages/publications/33847302707
U2 - 10.1145/192426.192488
DO - 10.1145/192426.192488
M3 - Conference contribution
AN - SCOPUS:33847302707
T3 - Proceedings of the 7th Annual ACM Symposium on User Interface Software and Technology, UIST 1994
SP - 147
EP - 155
BT - Proceedings of the 7th Annual ACM Symposium on User Interface Software and Technology, UIST 1994
PB - Association for Computing Machinery, Inc
Y2 - 2 November 1994 through 4 November 1994
ER -