Enhancing spoken connected-digit recognition accuracy by error correction codes — A novel scheme |
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Authors: | Sunil K Kopparapu P V S Rao |
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Affiliation: | (1) Cognitive Systems Research Laboratory, Tata Infotech Limited, Plot No 14, Sector 24, Vashi-Turbe, 400 705 Navi Mumbai, India |
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Abstract: | Recognizing spoken connected-digit numbers accurately is an important problem and has very many applications. Though state-of-the-art
word recognition systems have gained acceptable accuracy levels, the accuracy of recognition of current connected spoken digits
(and other short words) is very poor. In this paper, we develop a novel scheme to enhance the accuracy of recognizing a connected
number. The basic idea proposed in this paper is to increase the number of digits in a number and use these appended digits
to increase the overall accuracy of recognizing the number, as is done in the error-correcting code literature. We further
show that the developed scheme is able to uniquely and exactly correct single-digit errors. |
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Keywords: | Connected-digit recognition spoken number recognition error-correcting codes |
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