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Human–ComPuter InteraCtIon
simple calculation, we can easily see that recognizing a sentence with
five words, with each word having a recognition rate of 90%, will
yield a success rate of only 0.9
5
= 0.59 success rate. Add the problem
of extracting the meaning of the whole sentence, and now we have an
even lower success rate in the correct natural language understanding.
Despite these difficulties, due to its huge potential, great efforts are con-
tinually being made to improve the situation. e recent cases of Apple®
Siri [3] and IBM® Watson [1] illustrate the bright future we have with
regard to voice/language understanding. Apple Siri understands ...