Automatic speech recognition correction

A system comprising:

• one or more processors;
• and
• at least one computer-readable storage medium having stored therein instructions which, when executed by the one or more processors, cause the one or more processors to perform operations comprising:
• receiving a transcription of speech created using an automatic speech recognition system;
• identifying one or more domain-specific contexts associated with the speech;
• applying one or more domain-specific extractors to the transcription to recognize a text span from the transcription that includes a mistranscribed entry of the speech based on the one or more domain-specific contexts associated with the speech;
• extracting features from the mistranscribed entry;
• matching the extracted features against an index of domain-specific entries to identify a correct entry of the mistranscribed entry;
• and
• correcting the transcription by replacing the mistranscribed entry with the correct entry.

A non-transitory computer-readable storage medium having stored therein instructions which, when executed by a processor, cause the processor to perform operations comprising:

• receiving a transcription of speech created using an automatic speech recognition system;
• identifying one or more domain-specific contexts associated with the speech;
• recognizing a text span from the transcription that includes a mistranscribed entry of the speech based on the one or more domain-specific contexts associated with the speech;
• extracting features from the mistranscribed entry;
• matching the extracted features against an index of domain-specific entries to identify a correct entry of the mistranscribed entry using term frequency-inverse document frequency-based information retrieval;
• and
• correcting the transcription by replacing the mistranscribed entry with the correct entry.