The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 2025
Filed:
Nov. 20, 2019
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Hojin Choi, Daejeon, KR;
Kyojoong Oh, Daejeon, KR;
Youngjun Lee, Daejeon, KR;
Soohwan Park, Seoul, KR;
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Abstract
In a method of responding based on sentence paraphrase recognition for dialog system, main keywords of a domain and patterns thereof are recognized and extracted based on a morpheme analysis result in a pre-processing process. Question domains/sub-categories/dialogue-acts are classified using the morpheme analysis result and the extracted main keywords and patterns. Learning a model is performed using classification features of the classified question domains, sub-categories, and dialogue-acts as semantic features of query sentences, and sentence semantic vectors are extracted by measuring similarity between the vectors. A language model of letters is trained and similarity in expression and structure is analyzed by extracting a sentence expression vector based on the letter. An answer to a similar question is provided by generating a vector containing semantic and expressive information about an input query sentence based on analyzed semantic and expressive similarities, and finding a similar query sentence from FAQ knowledge using a paraphrase recognition technology. In a dialog system for automatic Q & A service such as a chatbot for customer consultation, it is possible to provide related answers by exploring question-and-answer knowledge (questions) that have similar meanings and intentions of input sentences (query) through paraphrase recognition technology.