Incorporating an exogenous large-vocabulary model into rule-based speech recognition

A system for providing speech recognition, comprising:

• one or more processors;
• and
• a memory coupled to the one or more processors, the one or more processors operable to:
• receive a first recognition result for a received audio stream, the first recognition results being received from a rule-based speech recognition system;
• determine if the first recognition result comprises a mark-up that indicates a portion of the audio stream was not recognized by the rule-based speech recognition system;
• when it is determined the first recognition result comprises the mark-up, performing a statistical model-based recognition of the marked-up portion of the audio stream to create a second recognition result;
• combine the second recognition result with the first recognition result to create a combined recognition result;
• and
• send the combined recognition result to the rule-based speech recognition system.

A computer-readable storage device encoding computer executable instructions that, when executed by a processing unit, perform a method, comprising:

• receiving a first recognition result of an audio stream from a rule-based speech recognition system, the first recognition result containing
• a mark-up that indicates a portion of the audio stream was not recognized by the rule-based speech recognition system;
• performing a statistical model-based recognition of the marked-up portion of the audio stream to create a second recognition result;
• combining the second recognition result with the first recognition result to form a combined recognition result;
• and
• sending the combined recognition result to the rule-based speech recognition system.