KR102277362B1 - System for language study service for learning korean as a foreign language - Google Patents

Abstract

A system for providing a language learning service for acquiring Korean as a second language is provided, accessing a page providing a language learning service, inputting user information including the first language used by the user, and speaking time included in a preset curriculum A user terminal that transmits and receives data through a channel formed in the user terminal, a teacher terminal that transmits and receives data through a channel formed at the time of speaking with the user terminal, and performs speaking learning by voice or video through call transmission or data communication to the user terminal; and a registration unit that receives user information including the first language of the user terminal and registers a user, a matching unit that compares and matches the user information of the user terminal with the instructor information of at least one teacher terminal stored in advance, and the instructor matched in the matching unit An allocator for allocating users by transmitting user information to the terminal, a channel forming unit for transmitting and receiving data by forming a channel between the user terminal and the instructor terminal at the speaking time in the preset curriculum, at least included in the curriculum set in the user terminal and a language learning service providing server including a curriculum management unit for outputting one piece of content in synchronization with time.

Description

A system for providing language learning services for the acquisition of Korean as a second language {SYSTEM FOR LANGUAGE STUDY SERVICE FOR LEARNING KOREAN AS A FOREIGN LANGUAGE}

The present invention relates to a system for providing a language learning service for acquiring Korean as a second language, and provides a platform that can provide a curriculum, a medium, and a channel for enhancing conversational communication ability and speaking ability.

Korean language education is to educate foreigners and overseas Koreans who want to learn Korean as a foreign language or second language to use Korean language and Korean culture fluently and accurately. First, the scope of foreigners refers to learners who want to study Korean language and culture, such as ordinary foreigners, foreign students, married immigrants, and foreign workers. In this case, marriage immigrants may include married immigrants residing in Korea after marrying a Korean spouse, but it does not exclude various types of immigrants not stipulated by law. Foreigners may be foreigners or Koreans. However, foreigners usually refer to learners of foreign nationality who want to learn Korean as a foreign language, whereas overseas Koreans, regardless of nationality, will be learners who learn Korean as a second language if one of their parents is Korean. In addition, the second language refers to Korean as an official language or Korean as a successor language, but since most countries do not adopt Korean as an official language, in fact, overseas Koreans who learn Korean as a successor language learn Korean as a second language. limited to the target. Married immigrants, their children, and those who have Korean citizenship but did not learn Korean were not included in the scope of education using this classification method, resulting in exclusion from the curriculum.

At this time, a system that supports education when a foreigner takes the Korean Language Proficiency Test has been researched and developed. In this regard, Korean Patent Publication No. 2018-0107908 (published on October 04, 2018), which is a prior art, provides a user's Korean education It can be connected to the electronic record terminal, where the level information is stored, and the electronic record terminal through a wired/wireless network, a learning menu generator that forms a learning management menu for each category and publishes the website on the wired/wireless network, and a learning menu generator that receives the Korean language education level information and receives the user Based on the first classification data generated by classifying the problems of the Korean language proficiency of students by level and the second classification data generated by classifying the problems by subject, the publicly submitted questions of the Korean Proficiency Test are downloaded and the first classification data and the second classification data are obtained. 2 Based on the results of comparative analysis by the previous analysis section and the previous analysis section that compare and analyze the classification data with the open previous questions, the frequency measurement data is generated by measuring the frequency of duplicate words, and based on the frequency measurement data, the duplicate words are generated. The configuration of a lexical analysis unit for generating third classification data by classifying by subject is disclosed.

However, the above method merely provides a question bank for the Korean language proficiency test, and the second generation of foreigners or overseas Koreans or married immigrants learning Korean as a second language actually lives in Korea and speaks Korean fluently. It does not include the process of fitting-in to society at all. In addition, in order to speak fluent and accurate Korean and to understand Korea, one must have the ability to understand and express the spoken and written words in the ordinary Korean dialect, and to speak accurately in accordance with the grammar of pronunciation, vocabulary, and sentences. It is necessary to have communication skills, which is the ability to understand and express texts, and this is a different point of view from the purpose of Korean language education. While the purpose of Korean language education is to develop Korean identity and culture by enhancing Korean language skills, the Korean language curriculum is suitable for learners who speak Korean as a second language because the ultimate goal is to enhance the communication skills of learners. Research and development of educational platforms is required.

One embodiment of the present invention is to teach Korean language and Korean culture through telephone and video education to learners who want to learn Korean and Korean culture as a foreign language or second language, so that they can improve their fluent and accurate communication skills, , to help the second-generation settlers through marriage immigrants learn not only Korean but also the language of the first-generation immigrants, prepare for the Korean Language Proficiency Test with the addition of speaking assessment, and feel social empathy with Korean culture and related vocabulary A method of providing a language learning service for acquiring Korean as a second language can be provided, which can provide learning content so that students can learn their backgrounds together. However, the technical task to be achieved by the present embodiment is not limited to the technical task as described above, and other technical tasks may exist.

As a technical means for achieving the above-described technical problem, an embodiment of the present invention accesses a page providing a language learning service, inputs user information including a first language used by the user, and includes it in a preset curriculum A user terminal that transmits and receives data through a channel formed at the speaking time, transmits and receives data through a channel formed at the time of speaking with a user terminal, and learns to speak by voice or video through call transmission or data communication to the user terminal In the instructor terminal, and a registration unit that receives user information including the first language of the user terminal and registers a user, a matching unit that compares and matches the user information of the user terminal with the instructor information of at least one teacher terminal stored in advance, in the matching unit An allocator for allocating users by transmitting user information to the matched instructor terminal, a channel forming unit for transmitting and receiving data by forming a channel between the user terminal and the instructor terminal at the speaking time within a preset curriculum, and within the curriculum set in the user terminal and a language learning service providing server including a curriculum management unit for outputting at least one included content in synchronization with time.

According to any one of the above-described problem solving means of the present invention, by teaching Korean language and Korean culture through telephone and video education to learners who want to learn Korean and Korean culture as a foreign language or a second language, fluent and accurate communication ability In order to improve students’ ability to develop their skills, enable the second generation, the children of the first generation of immigrants who settled through marriage immigrants, to learn not only Korean but also the language of the first generation of immigrants, and prepare for the Korean Language Proficiency Test with the addition of speaking assessment, Learning contents can be provided so that you can learn Korean culture and related vocabulary and backgrounds together so that you can feel social sympathy.

1 is a diagram for explaining a system for providing a language learning service for acquiring Korean as a second language according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a language learning service providing server included in the system of FIG. 1 .
3 is a diagram for explaining an embodiment in which a language learning service for acquiring Korean as a second language according to an embodiment of the present invention is implemented.
4 is a diagram illustrating a process in which data is transmitted/received between components included in the system for providing a language learning service for acquiring Korean as a second language of FIG. 1 according to an embodiment of the present invention.
5 is a flowchart illustrating a method of providing a language learning service for acquiring Korean as a second language according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement them. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is "connected" with another part, this includes not only the case of being "directly connected" but also the case of being "electrically connected" with another element interposed therebetween. . Also, when a part "includes" a component, it means that other components may be further included, rather than excluding other components, unless otherwise stated, and one or more other features However, it is to be understood that the existence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded in advance.

The terms "about", "substantially", etc. to the extent used throughout the specification are used in a sense at or close to the numerical value when the manufacturing and material tolerances inherent in the stated meaning are presented, and serve to enhance the understanding of the invention To help, precise or absolute figures are used to prevent unfair use by unscrupulous infringers of the stated disclosure. As used throughout the specification of the present invention, the term “step for (to)” or “step for” does not mean “step for”.

In this specification, a "part" includes a unit realized by hardware, a unit realized by software, and a unit realized using both. In addition, one unit may be implemented using two or more hardware, and two or more units may be implemented by one hardware.

In this specification, some of the operations or functions described as being performed by the terminal, apparatus, or device may be performed instead of in a server connected to the terminal, apparatus, or device. Similarly, some of the operations or functions described as being performed by the server may also be performed in a terminal, apparatus, or device connected to the server.

In this specification, some of the operations or functions described as mapping or matching with the terminal means mapping or matching the terminal's unique number or personal identification information, which is the identification data of the terminal. can be interpreted as

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram for explaining a system for providing a language learning service for acquiring Korean as a second language according to an embodiment of the present invention. Referring to FIG. 1 , a language learning service providing system 1 for acquiring Korean as a second language includes at least one user terminal 100 , a language learning service providing server 300 , and at least one instructor terminal 400 . may include. However, since the language learning service providing system 1 for acquiring Korean as a second language of FIG. 1 is only an embodiment of the present invention, the present invention is not limitedly interpreted through FIG. 1 .

In this case, each component of FIG. 1 is generally connected through a network 200 . For example, as shown in FIG. 1 , at least one user terminal 100 is connected to the language learning service providing server 300 through the network 200 , and via the language learning service providing server 300 , It may be connected to the instructor terminal 400 . In addition, the language learning service providing server 300 may be connected to at least one user terminal 100 and at least one instructor terminal 400 through the network 200 . In addition, the at least one instructor terminal 400 is connected to the language learning service providing server 300 through the network 200 , and is connected to the user terminal 100 via the language learning service providing server 300 . can be

Here, the network refers to a connection structure in which information exchange is possible between each node, such as a plurality of terminals and servers, and an example of such a network includes RF, 3rd Generation Partnership Project (3GPP) network, Long Term (LTE). Evolution) network, 5th Generation Partnership Project (5GPP) network, WIMAX (World Interoperability for Microwave Access) network, Internet, LAN (Local Area Network), Wireless LAN (Wireless Local Area Network), WAN (Wide Area Network) , PAN (Personal Area Network), Bluetooth (Bluetooth) network, NFC network, satellite broadcasting network, analog broadcasting network, DMB (Digital Multimedia Broadcasting) network, and the like are included, but are not limited thereto.

In the following, the term at least one is defined as a term including the singular and the plural, and even if at least one term does not exist, each element may exist in the singular or plural, and may mean the singular or plural. it will be self-evident In addition, that each component is provided in singular or plural may be changed according to embodiments.

The at least one user terminal 100 may be a terminal that registers a user using a language learning service related web page, an app page, a program, or an application for acquiring Korean as a second language and receives a level test. In addition, the at least one user terminal 100 may be a terminal that receives and outputs the content of the curriculum corresponding to the level test result according to a preset period or schedule. In addition, the at least one user terminal 100 may be a terminal connected to the instructor terminal 400 via the language learning service providing server 300 to transmit and receive audio or video content. In addition, the at least one user terminal 100 may be a terminal that receives the vocabulary list through the language learning service providing server 300 and performs a test on it. Also, the at least one user terminal 100 may be a terminal that transmits feedback on the progress result to the instructor terminal 400 to the language learning service providing server 300 .

Here, the at least one user terminal 100 may be implemented as a computer that can access a remote server or terminal through a network. Here, the computer may include, for example, a navigation device, a laptop computer equipped with a web browser, a desktop computer, and a laptop computer. In this case, the at least one user terminal 100 may be implemented as a terminal capable of accessing a remote server or terminal through a network. At least one user terminal 100, for example, as a wireless communication device that guarantees portability and mobility, navigation, PCS (Personal Communication System), GSM (Global System for Mobile communications), PDC (Personal Digital Cellular), PHS(Personal Handyphone System), PDA(Personal Digital Assistant), IMT(International Mobile Telecommunication)-2000, CDMA(Code Division Multiple Access)-2000, W-CDMA(W-Code Division Multiple Access), Wibro(Wireless Broadband Internet) ) terminal, a smart phone, a smart pad, a tablet PC, etc. may include all kinds of handheld-based wireless communication devices.

The language learning service providing server 300 may be a server providing a language learning service web page, an app page, a program, or an application for acquiring Korean as a second language. In addition, the language learning service providing server 300 may be a server that performs a level test based on the first language and user information input for user registration in the user terminal 100 . In addition, the language learning service providing server 300 may be a server that analyzes the test result of the user terminal 100 to determine a level and, correspondingly, proceeds with a pre-stored curriculum. In addition, the language learning service providing server 300 receives the registration of at least one instructor terminal 400 and assigns a user of the user terminal 100 to any one instructor terminal 400 among the at least one instructor terminal 400 . It can be a server that In addition, the language learning service providing server 300 may be a server that forms a channel between the user terminal 100 and the instructor terminal 400 so that a speaking class can be conducted by voice or video in response to a preset curriculum. In addition, the language learning service providing server 300 may be a server that receives and stores feedback from the user terminal 100 and the instructor terminal 400 after the speaking class is performed. In addition, the language learning service providing server 300 may be a server that collects Korean corpus data and extracts high-frequency vocabulary based on frequency of use and the like. In this case, the language learning service providing server 300 may be a server that separately constructs each corpus and database to correspond to the first language and analyzes the results of the difficult vocabulary, sentences, or characteristics according to the first language, It may be a server that builds a database for questions included in the Test of Proficiency in Korean separately or in an integrated way to reflect the vocabulary of the Test of Proficiency in Korean.

Here, the language learning service providing server 300 may be implemented as a computer capable of accessing a remote server or terminal through a network. Here, the computer may include, for example, a navigation device, a laptop computer equipped with a web browser, a desktop computer, and a laptop computer.

The at least one instructor terminal 400 may be a terminal of an instructor using a language learning service related web page, an app page, a program, or an application for acquiring Korean as a second language. In addition, the at least one instructor terminal 400 may be a terminal that receives a learner assigned through the language learning service providing server 300 , generates a schedule, and feeds it back to the language learning service providing server 300 . In addition, when the at least one instructor terminal 400 forms a channel in the language learning service providing server 300 according to a schedule, the at least one instructor terminal 400 may be a terminal connected to the user terminal 100 by voice or video. In addition, the at least one instructor terminal 400 may be a terminal that transmits the learner's evaluation data to the language learning service providing server 300 .

Here, the at least one instructor terminal 400 may be implemented as a computer capable of accessing a remote server or terminal through a network. Here, the computer may include, for example, a navigation device, a laptop computer equipped with a web browser, a desktop computer, and a laptop computer. In this case, the at least one instructor terminal 400 may be implemented as a terminal capable of accessing a remote server or terminal through a network. At least one instructor terminal 400, for example, as a wireless communication device that guarantees portability and mobility, navigation, PCS (Personal Communication System), GSM (Global System for Mobile communications), PDC (Personal Digital Cellular), PHS(Personal Handyphone System), PDA(Personal Digital Assistant), IMT(International Mobile Telecommunication)-2000, CDMA(Code Division Multiple Access)-2000, W-CDMA(W-Code Division Multiple Access), Wibro(Wireless Broadband Internet) ) terminal, a smart phone, a smart pad, a tablet PC, etc. may include all kinds of handheld-based wireless communication devices.

FIG. 2 is a block diagram illustrating a language learning service providing server included in the system of FIG. 1 , and FIG. 3 is an implementation of a language learning service for acquiring Korean as a second language according to an embodiment of the present invention. It is a drawing for explaining an embodiment.

Referring to FIG. 2 , the language learning service providing server 300 includes a registration unit 310 , a matching unit 320 , an assignment unit 330 , a channel forming unit 340 , a curriculum management unit 350 , and a chatting unit 360 . ), a vocabulary extraction unit 370 , an addition unit 380 , an evaluation unit 390 , and a teaching material providing unit 391 may be included.

The language learning service providing server 300 according to an embodiment of the present invention or another server (not shown) operating in conjunction with the at least one user terminal 100 and the at least one instructor terminal 400 provides a second language When transmitting a language learning service application, program, app page, web page, etc. for acquiring Korean as You can install or open language learning service applications, programs, app pages, web pages, etc. In addition, the service program may be driven in at least one user terminal 100 and at least one instructor terminal 400 by using a script executed in a web browser. Here, the web browser is a program that enables the use of a web (WWW: world wide web) service, and refers to a program that receives and displays hypertext written in HTML (hyper text mark-up language), for example, Netscape , Explorer, Chrome, and the like. In addition, the application means an application on the terminal, for example, includes an app (app) executed in a mobile terminal (smartphone).

Referring to FIG. 2 , the registration unit 310 may register a user by receiving user information including the first language of the user terminal 100 . The difficult part to learn Korean is different depending on which language you first acquired. For example, if Japanese is the first language, it is easier to construct sentences than for students of other languages because the grammar or arrangement is similar to that of Korean, but this part can be difficult because there are Korean pronunciations that are not in Japanese pronunciation, and speaking is difficult. It can be difficult. On the other hand, when Arabic is the first language, difficulties may be encountered from the grammar because the arrangement of the grammar is different from that of Korean. Depending on which language was first learned, the weak points are different, and the areas in which the curriculum needs to be focused also vary. In other words, since the target audience of the Korean language curriculum is Koreans, it is possible to construct a curriculum by grade level and determine the subject area relatively easily due to the group's homogeneity, but the Korean language curriculum is not a homogeneous group, so the national level Even if the Korean language curriculum is created, there is a difficulty that various variables cannot be included. Therefore, it is possible to determine the user's curriculum by grasping user information such as what the user's first language is and the learning goal, that is, whether to get a job, to complete a university course, or to settle as a second-generation immigrant. It can be set as an input query.

The matching unit 320 may match the user information of the user terminal 100 by comparing the user information of the at least one instructor terminal 400 stored in advance. At this time, when comparing the information of the instructor and the user who is a student, the schedule or load information, such as how many students are assigned to the instructor, is first considered, and then matching is performed using age, gender, preference, etc. However, it is not limited to the above-described variables, and a matching algorithm may be applied by applying various variables.

The allocator 330 may assign users by transmitting user information from the matching unit 320 to the matched instructor terminal 400 . To this end, the user terminal 100 may access a page providing a language learning service and input user information including a first language used by the user.

The channel forming unit 340 forms a channel between the user terminal 100 and the instructor terminal 400 at a speaking time within a preset curriculum to transmit and receive data. Accordingly, the user terminal 100 may transmit and receive data through a channel formed during the speaking time included in the preset curriculum, and the instructor terminal 400 transmits data to and from the user terminal 100 and the channel formed during the speaking time. It can transmit and receive, and learn to speak by voice or video through call transmission or data communication to the user terminal 100 .

In this case, the formed channel may be a channel that is valid only within a preset time and is not activated after that. At this time, flipped learning can be applied to induce students to actively participate in class. In flipped learning, students learn the subject contents online before they are connected with the instructor, and the actual instructor and the channel are connected. In this case, it is a class method that allows for learner-centered deep learning activities. This compensates for the disadvantage that the instructor unilaterally gives lectures in order to learn a large amount of knowledge for a limited time in the existing traditional teaching method, and learners passively accept the knowledge, so less time is devoted to students' practice activities or in-depth learning. does it

Flip learning class can be composed of pre-class (Pre-class), in-class (In-class), and post-class (After-class) stages. The pre-class stage is a stage in which the learner takes the initiative in pre-learning through the instructional materials provided in the curriculum. You will learn mainly through videos or presentations with lectures on the subject, or through learning applications. At this time, the learner can self-directly write summary notes or collect necessary questions related to the learning content. Thus, learners can have specific questions necessary for their learning, and instructors can anticipate what needs are most helpful to learners when learning the subject. This is the learning stage where the next channel is formed and instructors and learners meet and operate in an online space. Instructors provide a learner-centered learning environment, and learners engage in practice activities, assignments, projects, and experiments that enable them to practice the skills they are expected to learn, either independently or under the guidance of the instructor. In this case, the instructor can guide the learner through the process by providing feedback or mini-lectures, and the stage during class includes a warm-up activity and a Q&A time for the lecture content watched in advance. can Lastly, the post-class stage is a stage in which learners continuously deepen and apply their knowledge skills after receiving clear explanations and feedback received during class. The instructor continuously provides additional explanations or necessary materials to the learners, through which the learners complete a higher level of conversation and receive evaluation. Of course, in addition to the above-described methods, various methods may be applied according to embodiments.

Using the above-described teaching theory, the curriculum management unit 350 may synchronize and output at least one content included in a curriculum set in the user terminal 100 in time. The preset curriculum includes a grammar area including pronunciation, vocabulary, sentence, and discourse dimensions, and a skill area including speaking, listening, reading, and writing, and the preset curriculum includes a grammar area and skills Content corresponding to a preset level for the region may be synchronized with time to correspond to the learning process, and the content synchronized with time may be transmitted to the user terminal 100 at a preset time. By synchronizing the time, users can prevent arbitrarily skipping lectures or not listening to lectures due to sluggish schedules or a slump while teaching online.

The chat unit 360 may provide an artificial intelligence conversation agent. In this case, the chat unit 360 may control the conversation agent to be driven based on a data set learned based on the first language included in the user information. In other words, the most common mistake foreigners make is to write similar words into sentences with the wrong context. For example, if there is a sentence saying that O-Ryeon Jo is a good swimmer like a fish, Koreans know something is wrong, but foreigners do not know what part is wrong. In other words, it is the result of memorizing only similar words without understanding the context or situation of using the word fish when applying a fish to a dead fish and an analogy to a living person. As such, foreigners' Korean writing errors mainly include errors in conjunctions and investigations, omissions of sentence elements, inappropriate correspondence between words, and errors due to phonological differences, showing characteristics different from the general writing errors of Koreans. Existing Korean spelling check or proofreading systems often fail to catch sentences with clearly incorrect correspondences if the spelling is correct within a single word, making them somewhat inappropriate for foreigner's writing correction. Therefore, in one embodiment of the present invention, a conversation agent (chatbot) based on natural language processing is provided, and by explaining even a writing error in the conversation agent, it is possible to obtain the same effect as having a conversation with a Korean even if there is no Korean friend, and You can provide a conversational agent who can take on the role of a mother when learning, that is, teaching from one to ten and correcting errors immediately.

The conversational agent of the chatting unit 360 can obtain a set of recommended correction candidates for the input sentence by searching for the expression most similar to the user input from the pre-built set of word biggrams, and apply the editing distance calculation method to the foreigner In order to obtain ranked recommended corrections reflecting the characteristics of writing, and to conveniently obtain recommended corrections in any writing environment, a correction system is built with a keyboard hooking-based background process, while It enables real-time correction using the similarity calculation method.

In the construction of the word bigram set, the word biggram set can be extracted from the well-written Korean corpus, and the inverse index can be constructed in syllable units for quick search of similar words. In similarity-based word correction, set-based search and improved editing distance are used to recommend the word most similar to the input word among the extracted biggram sets. At this time, the word biggram set is extracted through the steps of corpus preprocessing, word biggram extraction, and syllable inverse index construction. Since numbers and proper nouns unnecessarily increase the capacity of extraction data and cause data scarcity, numbers and proper nouns can be applied by replacing them with predefined special characters in the corpus preprocessing step. In the next step, word bigram extraction, word biggrams are obtained from the preprocessed corpus sentences. In syllable inverse index construction, an inverse index can be created to quickly obtain a set of recommended correction candidates for user input words, a word ID is assigned to each extracted word biggram, and an inverse index can be constructed based on each syllable of the word biggram. can This structure supports fast search in the next level of similarity-based word correction.

In similarity-based word correction, recommendation correction can be performed by spelling check and set-based search. In the set-based search, word bigram candidates of a corpus similar to the input word biggram can be found by using the word bigram similarity calculation using the extracted word biggram and the syllable inverse index. Most Korean spelling checkers independently evaluate the spelling of each word, so they cannot accurately correct expressions such as tearing rice that is incorrectly written to cook rice. Accordingly, in an embodiment of the present invention, since the word biggram extracted from the corpus is used, it is possible to provide recommended correction based on context information. In this case, if the entire sentence of the corpus is used as a comparison target, the system speed may be slowed, so it is possible to provide recommended correction in units of two words from a reduced size candidate group using the POI data search algorithm. The user's input is composed of two syllables in a block, the search candidates are reduced to the first order by the operation process within the constructed block, and the final similar word candidate is presented by considering the correlation between blocks and additional biggrams with the inter-block operation. can do. In order to improve the search speed, the syllable inverse index table may be divided based on the first syllable ‘bob’. In the partitioned table, inverse indexed word IDs for each syllable are called, and the remaining syllables except for the start syllable are divided into 2-syllable units to obtain blocks of ‘tear’ and ‘da’. The operation within a block extracts a word that is included in common between two syllables of the block. In the inter-block operation process, a reduced number of final similar word candidates can be extracted by applying an additional constraint that checks the relationship between blocks to the candidates extracted from the intra-block operation. bracket

In the last step, the final recommended correction can be determined by using the edit distance for the similar word candidates extracted through the inter-block operation. In this case, it is possible to reflect the writing characteristics of foreigners by applying the improved editing distance method using the editing distance in phoneme units. In foreign writing, it is often found that diphthongs, aspirated consonants, and hard consonants are confused with diphthongs, which cannot be corrected well in the existing system, such as 'tear' and 'build', 'yeel' and 'yeeul', and 'oneya if'. Accordingly, the chatting unit 360 can reflect the writing characteristics of foreigners by giving a low editing distance to the diphthongs, aspirated consonants, and hard consonants, which are easily confused in the correction operation during the insertion/deletion/correction of the existing editing distance. Due to the characteristics of Korean, phonemes that are often confused are different for each initial, middle, and final voice. Based on this, groups for each phoneme that are frequently used within the initial voice, groups for each phoneme that are frequently used within the neutral, and groups for each phoneme that are frequently used within the final voice are separately configurable. In the editing distance calculation, insertion, deletion, or correction between different groups can be performed by adding a constant to the editing distance when the calculation occurs. For correction operations within a group that can be frequently used together, the edit distance can be calculated by dividing the absolute value of the index difference within a group by the number of elements in the group. For example, in 'because' and 'only if', the vowels 'ㅙ' and 'ㅚ' The difference between ' is the diphthong error that foreigners often make. Accordingly, the editing distance for each similar word biggram obtained as a candidate is calculated, and the recommended correction is presented in the order of the smallest editing distance. For the example of 'Rip rice', 'I cook rice' may be selected as the final recommended correction, and the conversation agent may correct it and inform the user as a result of text or voice. Of course, since various methods other than the above-described method may be applied, the present invention is not limited to the above-described method, and the natural language processing (NLP) of a conversation agent or artificial intelligence chatbot is the same as the known technology, and thus a description thereof is omitted.

The vocabulary extracting unit 370 learns, through machine learning, the frequency and range of at least one Korean corpus and at least one Korean corpus, and the frequency and range of the corpus extracted from the Korean Proficiency Test, in order to provide a list of very frequent vocabulary words. can do. Machine learning may include any one or a combination of at least one of supervised learning, semi-supervised learning, unsupervised learning, and reinforcement learning. In this case, the very frequent vocabulary list may be about 2000 learning lists corresponding to the goals of basic vocabulary learning related to daily life. The characteristics of the vocabulary group with a frequency of 2,000 are words related to daily life or social life. The amount of vocabulary learning in consideration of the quality within a period of one year corresponds to about 1,000 vocabulary words, which is equivalent to about two years of learning vocabulary. may correspond to However, this amount of infrequent words can cover about 80% of vocabulary among major texts or conversational vocabulary, so learn about it. In this case, the corpus may be constructed by the frequency of the general Korean corpus, the frequency and range of the Korean textbook and the Korean Language Proficiency Test corpus, the review of the topic of the Korean textbook, and the expert rating.

The adding unit 380 receives at least one map terminal (not shown) capable of speaking a first language, adds a curriculum for learning the first language to the curriculum of the user terminal 100, and at least one map Based on the schedule of the terminal, a leader to guide the user of the user terminal 100 may be selected and the user terminal 100 may be assigned. It may be a way to learn two languages.

The evaluation unit 390 transmits the mock test content to the user terminal 100 so as to correspond to the preset mock test schedule, evaluates the feedback data input as the correct answer of the mock test in the user terminal 100, and gives an evaluation score to the user terminal 100 ) and stored, and the evaluation score may be transmitted to the user terminal 100 together with the analysis result data. In this case, the test may include speaking, writing, reading, listening, etc., but does not exclude tests according to various other curricula. Currently, the Ministry of Justice provides Korean language education while operating the Social Integration Program (KIIP) for marriage immigrants and foreign workers in Korea. have. In addition, since a speaking test will be introduced in the Test of Proficiency in Korean (TOPIK) for foreigners from 2022, a test and evaluation system for this may be included in an embodiment of the present invention. Of course, in addition to the above-described tests, it will be obvious that the tests that change as laws, procedures, or rules are changed are not excluded and are not limited to the above-described tests.

At this time, in the case of the speaking test, the system 1 according to an embodiment of the present invention builds a pool of speaking test questions and makes it a database, and when the learner selects a level and pays, the learner meets the level It may be a method in which problem groups are provided randomly. When the learner stares, the voice uttered by the learner may be recorded and stored through the learner interface, and the sentence may be converted into text and stored through STT for changing the voice into text. In addition, when the graders in the team grade the recorded answers (based on scoring by two people) and transmit the score and feedback (overall comments), the system 1 according to an embodiment of the present invention uploads the answers to a web page, etc., the learner can be configured so that it can be viewed through the learner interface.

In addition, an embodiment of the present invention can match a group of learners and a group of teachers. In a curriculum including a speaking class, a group of teachers is arranged according to a level and a topic, and the learner selects any one of the group of teachers or randomly Learners and teachers can be matched automatically, such as by being placed or assigned according to a schedule. Speaking classes, which involve more communication with teachers than reading or writing classes, can be used to prioritize and match learners' preferences because the learner's liking or preference as a teacher plays an important role. In the speaking class, a 1:1 lecture using a phone call or video is matched, and in other classes, the method may be a method for the learner to select a video lecture uploaded by the teacher, but is not limited thereto.

The teaching material providing unit 391 provides the level test content to the user terminal 100, and when the user terminal 100 transmits the answer content in response to the level test, analyzes and evaluates the answer content to determine the level of the user. You can set and select a curriculum and place an order for textbooks corresponding to the selected curriculum.

Hereinafter, an operation process according to the configuration of the language learning service providing server of FIG. 2 will be described in detail with reference to FIG. 3 as an example. However, it will be apparent that the embodiment is only one of various embodiments of the present invention and is not limited thereto.

Referring to FIG. 3 , (a) the language learning service providing server 300 registers the first language and user information from the user terminal 100, and (b) the level test of the user using Gyeoroga. assigns students to the instructor terminal 400 by designating and designating a corresponding instructor, (c) forming a channel so that the instructor and student can have a conversation by voice or video according to a preset curriculum, (d) If learning with the instructor does not proceed, allow learning with a conversational agent.

As described above, the method of providing a language learning service for acquiring Korean as a second language in FIGS. 2 and 3 has not been described above with reference to FIG. 1 as a method of providing a language learning service for acquiring Korean as a second language. Since it is the same as the content or can be easily inferred from the described content, the following description will be omitted.

4 is a diagram illustrating a process in which data is transmitted/received between components included in the system for providing a language learning service for acquiring Korean as a second language of FIG. 1 according to an embodiment of the present invention. Hereinafter, an example of a process in which data is transmitted and received between the respective components will be described with reference to FIG. 4 , but the present application is not limited to such an embodiment, and the example shown in FIG. 4 according to the various embodiments described above will be described. It is apparent to those skilled in the art that the data transmission/reception process may be changed.

Referring to FIG. 4 , the language learning service providing server 300 receives user registration from the user terminal 100 ( S4100 ), performs a level test, and analyzes the result to determine the level ( S4200 , S4300 ). Then, the language learning service providing server 300 selects the instructor terminal 400 based on the determined level and user information, then allocates the student (S4400), and generates a high frequency corpus corresponding to the first language and a corpus according to the level. Extracts from the pre-built corpus (S4500), and provides a vocabulary to the user terminal 100 (S4600).

At this time, the language learning service providing server 300 may monitor whether learning is in progress according to the curriculum with the user terminal 100 (S4700), and at the same time report the state that the schedule is in progress from the instructor terminal 400 to do so (S4800). In addition, the language learning service providing server 300 sets a period in which the user terminal 100 and the instructor terminal 400 are connected by voice or video based on the student's curriculum progress result and the instructor's schedule (S4810), and the period is When it is imminent (S4820), a channel is formed (S4830), and when a preset time has elapsed, the channel is closed (S4840, S4900). In addition, the language learning service providing server 300 receives feedback from the instructor and the user from the user terminal 100 and the instructor terminal 400 ( S4910 ), and continues the curriculum ( S4920 ).

The order between the above-described steps (S4100 to S4920) is only an example, and is not limited thereto. That is, the order between the above-described steps S4100 to S4920 may be mutually changed, and some of these steps may be simultaneously executed or deleted.

As described above, the method of providing a language learning service for acquiring Korean as a second language in FIG. 4 is not described above with respect to the method of providing a language learning service for acquiring Korean as a second language through FIGS. 1 to 3 . Since it is the same as the content or can be easily inferred from the described content, the following description will be omitted.

5 is a flowchart illustrating a method of providing a language learning service for acquiring Korean as a second language according to an embodiment of the present invention. Referring to FIG. 5 , the language learning service providing server receives user information including a first language of the user terminal and registers a user ( S5100 ), user information of the user terminal and instructor information of at least one pre-stored instructor terminal Compare and match (S5200).

In addition, the language learning service providing server transmits user information to the matched instructor terminal to assign a user (S5300), and forms a channel between the user terminal and the instructor terminal at the speaking time in the preset curriculum to transmit and receive data. Curriculum management is formed (S5400), and the user terminal outputs at least one content included in a preset curriculum in synchronization with time (S5500).

As described above, the method of providing a language learning service for acquiring Korean as a second language in FIG. 5 is not described above with respect to the method of providing a language learning service for acquiring Korean as a second language through FIGS. 1 to 4 . Since it is the same as the content or can be easily inferred from the described content, the following description will be omitted.

The method of providing a language learning service for acquiring Korean as a second language according to an embodiment described with reference to FIG. 5 is in the form of a recording medium including instructions executable by a computer, such as an application or program module executed by a computer. can also be implemented. Computer-readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. Also, computer-readable media may include all computer storage media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data.

The method for providing a language learning service for acquiring Korean as a second language according to an embodiment of the present invention described above may include an application basically installed in a terminal (which may include a program included in a platform or operating system basically installed in the terminal) ), and may be executed by an application (ie, a program) installed directly in the master terminal through an application providing server such as an application store server, an application, or a web server related to a corresponding service by the user. In this sense, the method for providing a language learning service for acquiring Korean as a second language according to an embodiment of the present invention described above is implemented as an application (that is, a program) installed basically in a terminal or directly installed by a user and installed in the terminal. It may be recorded on a computer-readable recording medium, such as.

The above description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

Claims (7)

a user terminal that accesses a page providing a language learning service, inputs user information including a first language used by the user, and transmits and receives data through a channel formed at a speaking time included in a preset curriculum;
an instructor terminal for transmitting and receiving data to and from the user terminal through a channel formed during the speaking time, and performing speaking learning through voice or video through call transmission or data communication to the user terminal; and
A registration unit for registering a user by receiving user information including the first language of the user terminal, a matching unit for comparing and matching between the user information of the user terminal and the instructor information of at least one teacher terminal stored in advance, and matching in the matching unit Allocating unit for allocating users by transmitting the user information to the instructor terminal, a channel forming unit for transmitting and receiving data by forming a channel between the user terminal and the instructor terminal at a speaking time within the preset curriculum, the user terminal a language learning service providing server including a curriculum management unit for outputting at least one content included in the preset curriculum in synchronization with time;
The preset curriculum includes a grammar area including pronunciation, vocabulary, sentence, and discourse dimensions, and a skill area including speaking, listening, reading, and writing, and the preset curriculum includes: The content corresponding to the preset level for the region and the technology region is synchronized with time to correspond to the learning process, and the content synchronized with the time is transmitted to the user terminal at a preset time,
The language learning service providing server may be configured to register at least one guidance terminal capable of speaking the first language, add a curriculum for learning the first language to a curriculum of the user terminal, and Further comprising; an additional unit for allocating the user terminal by selecting a leader to guide the user of the user terminal based on the schedule;
The language learning service providing server further includes a chat unit providing an artificial intelligence conversation agent, wherein the chat unit is the conversation unit based on a data set learned based on a first language included in the user information. Control the agent to run,
The language learning service providing server provides the level test content to the user terminal, and when the user terminal transmits the answer content in response to the level test, analyzes and evaluates the answer content to set the user's level A system for providing a language learning service for acquiring Korean as a second language, further comprising a teaching material providing unit for selecting a curriculum and placing an order for teaching materials corresponding to the selected curriculum. delete delete delete delete delete delete

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