Abstract: A speech recognition device and a method thereof are disclosed. The speech recognition method includes detecting an error word of a recognized received speech, separately encoding a right part and a left part with respect to the detected error word, and decoding while correcting the error word based on a vector of the encoded right and left parts, a last character of the encoded right part, and a last character of the left part.

Abstract: The apparatus for foreign language study includes: a voice recognition device configured to recognize a speech entered by a user and convert the speech into a speech text; a speech intent recognition device configured to extract a user speech intent for the speech text using skill level information of the user and dialog context information; and a feedback processing device configured to extract a different expression depending on the user speech intent and a speech situation of the user. According to the present invention, the intent of a learner's speech may be determined even though the learner's skill is low, and customized expressions for various situations may be provided to the learner.

Abstract: A conversation management system includes: a training unit that generates an articulation speech act and an entity name of a training corpus, that generates a lexical syntactic pattern, and that estimates a speech act and an entity name of a training corpus; a database that stores the articulation speech act, the entity name, and the lexical syntactic pattern of the training corpus; an execution unit that generates an articulation speech act and an entity name of a user, that generates a user lexical syntactic pattern, that estimates a speech act and an entity name of a user, that searches for an articulation pair corresponding to a user articulation at the database using a search condition including the estimated user speech act and the generated user lexical syntactic pattern, and that generates a final response by selecting an articulation template using a restriction condition including an estimated entity name among the found articulation pair; and an output unit that outputs a final response that is gen

Abstract: Provided are a grammatical error correcting system and a grammatical error correcting method using the same, and in detail, the grammatical error correcting system includes: a learning unit configured to acquire a plurality of context features according to a linguistic characteristic from a plurality of corpuses and generate a primary learning classification model and a secondary learning classification model which are references of diagnosing a grammatical error from the context features; and an executing unit configured to predict the grammatical error with respect to a corpus which is input by a learner by using the primary learning classification model, predict the grammatical error by using a primary prediction result of the grammatical error and the secondary learning classification model, and correct the grammatical error, in which the secondary learning classification model is generated by an iterative learning technique by using the plurality of context features extracted from the plurality of corpus

Abstract: Disclosed herein are a language learning system and a language learning method. A language learning system includes a user terminal configured to receive utterance information of a user as a speech or text type and to output learning data transferred through a network to the user as the speech or text type, and a main server which includes a learning processing unit configured to analyze a meaning of the utterance information of the user, to generate at least one response utterance candidate corresponding to dialogue learning in a predetermined domain to induce a correct answer of the user, and to connect a dialogue depending on the domain and a storage unit linked with the learning processing unit and configured to store material data or a dialogue model depending on the dialogue learning.

Abstract: A conversation management system includes: a training unit that generates an articulation speech act and an entity name of a training corpus, that generates a lexical syntactic pattern, and that estimates a speech act and an entity name of a training corpus; a database that stores the articulation speech act, the entity name, and the lexical syntactic pattern of the training corpus; an execution unit that generates an articulation speech act and an entity name of a user, that generates a user lexical syntactic pattern, that estimates a speech act and an entity name of a user, that searches for an articulation pair corresponding to a user articulation at the database using a search condition including the estimated user speech act and the generated user lexical syntactic pattern, and that generates a final response by selecting an articulation template using a restriction condition including an estimated entity name among the found articulation pair; and an output unit that outputs a final response that is gen

Abstract: Disclosed is an apparatus and method for processing documents to extract expressions and descriptions. The apparatus for processing documents includes a document collection unit, which collects documents from websites and divides each of the collected documents into a script portion and a description portion to thus generate a script document and a description document, and an expression extraction unit, which extracts expression description sentences on the basis of the description document, and extracts expressions described by the expression description sentences from the script document. According to the invention, study material, including a pair that comprises an expression to be studied and a description thereof, can be automatically constructed.

Abstract: The apparatus for foreign language study includes: a voice recognition device configured to recognize a speech entered by a user and convert the speech into a speech text; a speech intent recognition device configured to extract a user speech intent for the speech text using skill level information of the user and dialogue context information; and a feedback processing device configured to extract a different expression depending on the user speech intent and a speech situation of the user. According to the present invention, the intent of a learner's speech may be determined even though the learner's skill is low, and customized expressions for various situations may be provided to the learner.

Abstract: Disclosed is an apparatus and method for processing documents to extract expressions and descriptions. The apparatus for processing documents includes a document collection unit, which collects documents from websites and divides each of the collected documents into a script portion and a description portion to thus generate a script document and a description document, and an expression extraction unit, which extracts expression description sentences on the basis of the description document, and extracts expressions described by the expression description sentences from the script document. According to the invention, study material, including a pair that comprises an expression to be studied and a description thereof, can be automatically constructed.