Speech recognition apparatus

A speech recognition method that calculates a score indicating the likelihood of a speech recognition result for an input speech and recognizes the speech on the basis of the score, the speech recognition method comprising the step of:

• calculating the scores of words to be recognized and producing, on the basis of the calculated scores, a word series as a candidate for a speech recognition result;
• storing connection relationships among words in the word series to be employed as a candidate for the speech recognition result;
• correcting the connection relationships stored in the storage step;
• determining a word series as the speech recognition result on the basis of the corrected connection relationships;
• and
• limiting the location of a boundary between words represented by the connection relationships stored in the storage step.

A storage medium including a program stored therein for causing a computer to perform a speech recognition process of calculating a score indicating the likelihood of a speech recognition result for an input speech and recognizing the speech on the basis of the score, the program comprising the steps of:

• calculating the scores of words to be recognized and producing, on the basis of the calculated scores, a word series as a candidate for a speech recognition result;
• storing connection relationships among words in the word series to be employed as a candidate for the speech recognition result;
• correcting the connection relationships stored in the storage step;
• determining a word series as the speech recognition result on the basis of the corrected connection relationships;
• and
• limiting the location of a boundary between words represented by the connection relationships stored in the storage step.

A speech recognition apparatus that calculates a score indicating the likelihood of a speech recognition result for an input speech and recognizes the speech on the basis of the score, the speech recognition apparatus comprising:

• selection means for selecting one or more words to be placed following an already-selected word included in a word series to be employed as a candidate for the speech recognition result, from a set of speech-recognizable words,
• production means for calculating the score of the one or more words selected by the selection means and producing, on the basis of the calculated scores, a word series to be employed as a candidate for a speech recognition result;
• determining means for selecting one word series as a determinate speech recognition result from the word series that have been produced as candidates for the speech recognition result;
• and
• start location limiting means for limiting the start location of a word selected by the selection means.

A speech recognition method that calculates a score indicating the likelihood of a speech recognition result for an input speech and recognizes the speech on the basis of the score, the speech recognition method comprising the step of:

• selecting one or more words to be placed following an already-selected word included in a word series to be employed as a candidate for the speech recognition result, from a set of speech-recognizable words;
• calculating the score of the one or more words selected in the selection step and producing, on the basis of the calculated scores, a word series to be employed as a candidate for a speech recognition result;
• selecting one word series as a determinate speech recognition result from the word series that have been produced as candidates for the speech recognition result;
• and
• limiting the start location of a word selected in the selection step.

A storage medium including a program stored therein for causing a computer to perform a speech recognition process of calculating a score indicating the likelihood of a speech recognition result for an input speech and recognizing the speech on the basis of the score, the program comprising the steps of:

• selecting one or more words to be placed following an already-selected word included in a word series to be employed as a candidate for the speech recognition result, from a set of speech-recognizable words;
• calculating the score of the one or more words selected in the selection step and producing, on the basis of the calculated scores, a word series to be employed as a candidate for a speech recognition result;
• selecting one word series as a determinate speech recognition result from the word series that have been produced as candidates for the speech recognition result;
• and
• limiting the start location of a word selected in the selection step.