Language correction system, method therefor, and language correction model learning method of system

A method for enabling a language correction system to learn a language correction model based on machine learning, the method comprising:

• performing a learning processing including a supervised learning data labeling task, a machine learning data expansion task, and a parallel data construction task for machine learning on a plurality of data sets including ungrammatical sentence data and error-free grammatical sentence data corresponding to the ungrammatical sentence data, respectively;
• and
• generating a corresponding correction model by performing supervised learning-based machine learning on the data sets on which the learning processing has been performed.

A method for enabling a language correction system to perform a language correction based on machine learning, the method comprising:

• performing spelling error correction on sentences to be corrected;
• and generating a corrected sentence by performing grammar correction by using a correction model on the spelling error-corrected sentence, wherein the correction model is generated by performing supervised learning-based machine learning on
• a plurality of data sets consisting of ungrammatical sentence data and error-free grammatical sentence data corresponding to the ungrammatical sentence data, respectively.