Patents Assigned to 42 Maru Inc.
  • Publication number: 20260148112
    Abstract: A method and system for providing an answer to user question by using a generative artificial intelligence (AI) model. In the system for providing an interactive communication agent service based on a generative AI model, the method for providing the service includes the steps of: receiving a user query from a user terminal in a state in which a page associated with a company has been provided to the user terminal; using unique information associated with the user query to identify a specific company related to the user query; and generating an answer to the user query on the basis of the characteristics of the user query by using at least one of a plurality of different answer models.
    Type: Application
    Filed: January 15, 2026
    Publication date: May 28, 2026
    Applicant: 42 Maru Inc.
    Inventors: Dong Hwan KIM, You Kyung KWON, Han Su KIM, Gil Je SEONG
  • Publication number: 20250068855
    Abstract: The present invention relates to a context-based QA generation architecture for generating diverse QA pairs from a single context. The context-based QA generation architecture includes a latent variable generating network, an answer generating network and a question generating network. The latent variable generating network comprises multiple Bi-LSTM encoders encode the a first context, the a first question and the a first answer to generate a first context vector, a first question vector and a first answer vector, respectively, a first Multi-Layer Perceptron (MLP) generate a first question latent variable based on the first context vector and the first question vector, and a second MLP generate a first answer latent variable based on the first question latent variable and the first answer vector. The answer generating network and the question generating network are trained based on the first context, the first question latent variable and the first answer latent variable.
    Type: Application
    Filed: November 11, 2024
    Publication date: February 27, 2025
    Applicants: 42 Maru Inc., Korea Advanced Institute of Science and Technology
    Inventors: Dong Hwan Kim, Sung Ju Hwang, Seanie Lee, Dong Bok Lee, Woo Tae Jeong, Han Su Kim, You Kyung Kwon, Hyun Ok Kim
  • Patent number: 12159118
    Abstract: The present invention relates to a context-based QA generation architecture, and an object of the present invention is to generate diverse QA pairs from a single context. To achieve the object, the present invention includes a latent variable generating network including at least one encoder and an artificial neural network (Multi-Layer Perceptron: MLP) and configured to train the artificial neural network using a first context, a first question, and a first answer, and generate a second question latent variable and a second answer latent variable by applying the trained artificial neural network to a second context, an answer generating network configured to generate a second answer by decoding the second answer latent variable, and a question generating network configured to generate a second question based on a second context and the second answer.
    Type: Grant
    Filed: December 18, 2023
    Date of Patent: December 3, 2024
    Assignees: 42 Maru Inc., Korea Advanced Institute of Science and Technology
    Inventors: Dong Hwan Kim, Sung Ju Hwang, Seanie Lee, Dong Bok Lee, Woo Tae Jeong, Han Su Kim, You Kyung Kwon, Hyun Ok Kim
  • Patent number: 12141532
    Abstract: Aspects of the subject disclosure may include, systems and methods, for example, including receiving a user question data in a speech format or a text format, analyzing the user question data, selecting a plurality of documents from a plurality of domains corresponding to the user question data, searching for a plurality of passages including candidates for an answer value determined as being suitable for the user question data, in the plurality of documents, obtaining candidates by inputting the user question data and the plurality of passages into a plurality of MRC question and answer units, determining the answer value based on whether a reliability value of each of the candidates exceeds a threshold value, and providing the determined answer value to a user. Other embodiments are disclosed.
    Type: Grant
    Filed: October 5, 2023
    Date of Patent: November 12, 2024
    Assignee: 42 Maru Inc.
    Inventors: Dong Hwan Kim, Hyun Ok Kim, Woo Tae Jeong
  • Patent number: 12033413
    Abstract: Provided are method and apparatus for data structuring of text. The apparatus for data structuring of text includes a data extraction unit configured to extract text and location information of the text from an image based on an optical character recognition (OCR) technique, a data processing unit configured to generate a text unit based on the text and the location information, a form classification unit configured to classify a form of the image based on the text, a labeling unit configured to label the text unit as first text, second text, and third text respectively corresponding to an item name, an item value, or others based on the classified form, a relationship identification unit configured to map and structure the second text corresponding to the first text, and a misrecognition correction unit configured to determine misrecognition of the first text and correct the first text determined to be misrecognized.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: July 9, 2024
    Assignee: 42 Maru Inc.
    Inventors: Dong Hwan Kim, You Kyung Kwon, So Young Ko, Sook Jin Roe, Ki Beom Kwon, Da Hea Moon
  • Publication number: 20240028837
    Abstract: Aspects of the subject disclosure may include, systems and methods, for example, including receiving a user question data in a speech format or a text format, analyzing the user question data, selecting a plurality of documents from a plurality of domains corresponding to the user question data, searching for a plurality of passages including candidates for an answer value determined as being suitable for the user question data, in the plurality of documents, obtaining candidates by inputting the user question data and the plurality of passages into a plurality of MRC question and answer units, determining the answer value based on whether a reliability value of each of the candidates exceeds a threshold value, and providing the determined answer value to a user. Other embodiments are disclosed.
    Type: Application
    Filed: October 5, 2023
    Publication date: January 25, 2024
    Applicant: 42 Maru Inc.
    Inventors: Dong Hwan KIM, Hyun Ok KIM, Woo Tae JEONG
  • Patent number: 11822890
    Abstract: Provided is an artificial intelligence (AI) answering system including a user question receiver configured to receive a user question from a user terminal; a first question extender configured to generate a question template by analyzing the user question and determine whether the user question and the generated question template match; a second question extender configured to generate a similar question template by using a natural language processing and a deep learning model when the user question and the generated question template do not match; a training data builder configured to generate training data for training the second question extender by using an neural machine translation (NMT) engine; and a question answering unit configured to transmit a user question result derived through the first question extender or the second question extender to the user terminal.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: November 21, 2023
    Assignee: 42 Maru Inc.
    Inventor: Dong Hwan Kim
  • Patent number: 11816441
    Abstract: A machine reading comprehension (MRC) question and answer providing method includes receiving a user question; analyzing the user question; selecting at least one document from at least one domain corresponding to an analyzed user question and searching for a passage, which is a candidate answer determined as being suitable for the user question, in the selected at least one document; obtaining at least one correct answer candidate value by inputting the user question and a corresponding passage into each of at least one MRC question and answer unit; and determining whether the at least one correct answer candidate value is a best answer.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: November 14, 2023
    Assignee: 42 MARU INC.
    Inventors: Dong Hwan Kim, Hyun Ok Kim, Woo Tae Jeong
  • Publication number: 20230078362
    Abstract: A machine reading comprehension (MRC) question and answer providing method includes receiving a user question; analyzing the user question; selecting at least one document from at least one domain corresponding to an analyzed user question and searching for a passage, which is a candidate answer determined as being suitable for the user question, in the selected at least one document; obtaining at least one correct answer candidate value by inputting the user question and a corresponding passage into each of at least one MRC question and answer unit; and determining whether the at least one correct answer candidate value is a best answer.
    Type: Application
    Filed: November 18, 2022
    Publication date: March 16, 2023
    Applicant: 42 Maru Inc.
    Inventors: Dong Hwan KIM, Hyun Ok KIM, Woo Tae JEONG
  • Patent number: 11573958
    Abstract: The present invention relates to an in-document search method and device for a query vector, and an object of the present invention is to improve the accuracy of a response by generating sentence data corresponding to data in a table form stored in database. The in-document search method for a query vector includes a step A of receiving a user query from a user terminal, a step B of generating a user query vector for the user query, a step C of extracting candidate table data based on the user query vector in a data storage module, a step D of searching for a response corresponding to the user query vector in the candidate table data, and a step E of providing the response to the user terminal.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: February 7, 2023
    Assignee: 42 Maru Inc.
    Inventors: Dong Hwan Kim, Jin Min Park, Ju Kwan Lee, Hyuk Sung Kwon, Hyeong Jin Jang
  • Patent number: 11531818
    Abstract: A machine reading comprehension (MRC) question and answer providing method includes receiving a user question; analyzing the user question; selecting at least one document from at least one domain corresponding to an analyzed user question and searching for a passage, which is a candidate answer determined as being suitable for the user question, in the selected at least one document; obtaining at least one correct answer candidate value by inputting the user question and a corresponding passage into each of at least one MRC question and answer unit; and determining whether the at least one correct answer candidate value is a best answer.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: December 20, 2022
    Assignee: 42 MARU INC.
    Inventors: Dong Hwan Kim, Hyun Ok Kim, Woo Tae Jeong
  • Patent number: 11373047
    Abstract: Provided is an artificial intelligence (AI) answering system including a user question receiver configured to receive a user question from a user terminal; a first question extender configured to generate a question template by analyzing the user question and determine whether the user question and the generated question template match; a second question extender configured to generate a similar question template by using a natural language processing and a deep learning model when the user question and the generated question template do not match; a training data builder configured to generate training data for training the second question extender by using an neural machine translation (NMT) engine; and a question answering unit configured to transmit a user question result derived through the first question extender or the second question extender to the user terminal.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: June 28, 2022
    Assignee: 42 Maru Inc.
    Inventor: Dong Hwan Kim
  • Patent number: 11315547
    Abstract: Provided is a system for generating speech recognition training data, the system including: a speech data processing module receiving speech data from a user terminal and performing data preprocessing on the received speech data; an auto speech recognition (ASR) interfacing module transmitting the preprocessed speech data to a plurality of ASR engines and acquiring a confidence score and transcription data of the speech data from the plurality of ASR engines; an ASR result evaluating module determining whether the speech data and the transcription data match each other; and a training data managing unit generating training data as a pair of the speech data and the transcription data determined to match each other.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: April 26, 2022
    Assignee: 42 MARU INC.
    Inventors: Dong Hwan Kim, Hyun Ok Kim, You Kyung Kwon
  • Publication number: 20210149900
    Abstract: A semantic triple-based knowledge extension system includes a data updater configured to update existing semantic triple data; a question generating module configured to generate a question by utilizing and combining entity synonyms and attribute synonyms; an actual question obtaining unit configured to obtain actual user questions based on user logs; a semantic triple extractor configured to select a relevant passage candidate group according to characteristics of the question and specify a search target, search for a passage relevant to the corresponding question, and derive a unique instant answer based on a retrieved passage and question data; and a semantic triple conversion module configured to convert a unique instant answer, which is a correct answer, and a question into the form of a semantic triple including an entity, an attribute, and an instant answer.
    Type: Application
    Filed: November 15, 2019
    Publication date: May 20, 2021
    Applicant: 42 Maru Inc.
    Inventors: Dong Hwan KIM, You Kyung KWON, Gil Je SEONG
  • Publication number: 20210149994
    Abstract: A machine reading comprehension (MRC) question and answer providing method includes receiving a user question; analyzing the user question; selecting at least one document from at least one domain corresponding to an analyzed user question and searching for a passage, which is a candidate answer determined as being suitable for the user question, in the selected at least one document; obtaining at least one correct answer candidate value by inputting the user question and a corresponding passage into each of at least one MRC question and answer unit; and determining whether the at least one correct answer candidate value is a best answer.
    Type: Application
    Filed: November 15, 2019
    Publication date: May 20, 2021
    Applicant: 42 Maru Inc.
    Inventors: Dong Hwan KIM, Hyun Ok KIM, Woo Tae JEONG
  • Patent number: 10832004
    Abstract: Provided is an artificial intelligence (AI) answering system including a user question receiver configured to receive a user question from a user terminal; a first question extender configured to generate a question template by analyzing the user question and determine whether the user question and the generated question template match; a second question extender configured to generate a similar question template by using a natural language processing and a deep learning model when the user question and the generated question template do not match; a training data builder configured to generate training data for training the second question extender by using an neural machine translation (NMT) engine; and a question answering unit configured to transmit a user question result derived through the first question extender or the second question extender to the user terminal.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: November 10, 2020
    Assignee: 42 Maru Inc.
    Inventor: Dong Hwan Kim
  • Publication number: 20200090640
    Abstract: Provided is a system for generating speech recognition training data, the system including: a speech data processing module receiving speech data from a user terminal and performing data preprocessing on the received speech data; an auto speech recognition (ASR) interfacing module transmitting the preprocessed speech data to a plurality of ASR engines and acquiring a confidence score and transcription data of the speech data from the plurality of ASR engines; an ASR result evaluating module determining whether the speech data and the transcription data match each other; and a training data managing unit generating training data as a pair of the speech data and the transcription data determined to match each other.
    Type: Application
    Filed: September 19, 2019
    Publication date: March 19, 2020
    Applicant: 42 Maru Inc.
    Inventors: Dong Hwan KIM, Hyun Ok KIM, You Kyung KWON