Patent ID: 9318102
Filing Date: 2016-04-19
CPC Classification: G10L

Claim Text:
1. A speech recognition error correction method performed by a speech recognition error correction apparatus, the method comprising: determining a likelihood that a speech recognition result is erroneous based on a language model learned through a correct answer corpus and a domain corpus; generating a parallel corpus according to whether the speech recognition result matches the correct answer corpus, if the likelihood that the speech recognition result is erroneous is higher than a predetermined standard; generating a speech recognition model based on the parallel corpus; and correcting an erroneous speech recognition result based on the speech recognition model and the language model; wherein the generating of the parallel corpus includes detecting a correct answer pair from the correct answer corpus and the speech recognition result, detecting an incorrect answer pair from the correct answer corpus and the speech recognition result, and generating the parallel corpus based on the correct answer corpus, the speech recognition result, the correct answer pair, and the incorrect answer pair, wherein if text included in the incorrect answer pair is included in the correct answer pair, the incorrect answer pair including the text is not detected as the incorrect answer pair, and wherein the generating of the speech recognition model includes detecting a first syntax before speech recognition from the parallel corpus, detecting a second syntax after speech recognition from the parallel corpus, calculating a speech recognition rate between the first syntax and the second syntax, and generating the speech recognition model based on the first syntax, the second syntax, and the speech recognition rate.