Method and apparatus for correcting speech recognition error

A speech recognition error correction apparatus, comprising:

• a processing unit configured to determine a likelihood that a speech recognition result is erroneous based on a language model learned through a correct answer corpus and a domain corpus, and if the likelihood that the speech recognition result is erroneous is higher than a predetermined standard, generate a parallel corpus according to whether the speech recognition result matches the correct answer corpus generate a speech recognition model based on the parallel corpus, and correct an erroneous speech recognition result based on the speech recognition model and the language model;
• and
• a storage unit configured to store information to be processed and information processed in the processing unit;
• wherein the processing unit detects a correct answer pair from the correct answer corpus and the speech recognition result, detects an incorrect answer pair from the correct answer corpus and the speech recognition result, and generates the parallel corpus based on the correct answer corpus, the speech recognition result, the correct answer pair, and the incorrect answer pair, and
• wherein if text included in the incorrect answer pair is included in the correct answer pair, the processing unit does not detect the incorrect answer pair including the text as the incorrect answer pair, and
• wherein the processing unit detects a first syntax before speech recognition from the parallel corpus, detects a second syntax after speech recognition from the parallel corpus, calculates a speech recognition rate between the first syntax and the second syntax, and generates the speech recognition model based on the first syntax, the second syntax, and the speech recognition rate.