Confidence Measures in Speech Recognition
Feb 25, 2007 9273 views 
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A confidence measure (CM) is a number between 0 and 1 that is applied to speech recognition output. A CM gives an indication of how confident we are that the unit to which it has been applied (e.g. a phrase, word, phone) is correct. Confidence measures are extremely useful in any speech application that involves a dialogue, because they can guide the system towards a more intelligent dialogue that is faster and less frustrating for the user.