| 摘要 |
A speech recognition system has an acoustic processor whic-generates a string of acoustic labels in response to speech input and a decoder which matches words in a vocabulary against generated labels in a string. A string of labels are generated in response to a speech input, and selecting words from a vocabulary as possible first words corresp. to labels at the beginning of the string. For a subject selected word, a most likely boundary label interval in the string is located where the subject selected word has the highest probability of ending. A respective likelihood of the subject selected word at each label interval of the string up to and including the most likely boundary label interval is evaluated. The process is repeated for each selected word as the subject selected word. A given selected word is classified as extendible if the likelihood at the partic. label interval corresp. to the most likely boundary label interval is within a predefined range of the highest likelihood for any selected word the partic. label interval. |
