Patent ID: 11934782
Assignee: NAVER CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 21:
22. A question answering method comprising:
selecting candidate paragraphs from a knowledge database to extend a present reasoning path for answering a question, wherein selecting the candidate paragraphs is based on lexical relevance of the candidate paragraphs to the question and based on lexical relevance of the candidate paragraphs to paragraphs of the present reasoning path;
determining a token representation of the question, token representations of the paragraphs of the present reasoning path, and token representations of candidate paragraphs for extending the present reasoning path, respectively;
transforming, by a neural network module, the token representation of the question, the token representations of the paragraphs of the present reasoning path, and the token representations of the candidate paragraphs into vector representations; and
appending, by the neural network module, a first variable to the vector representations to produce a second variable;
determining, by the neural network module, a score for the present reasoning path based on the second variable;
selectively add ones of the candidate paragraphs to the present reasoning path, wherein selectively adding ones of the candidate paragraphs to the present reasoning path is based on optimizing the score;
determining a likelihood that the present reasoning path allows inferring an answer to the question; and
selectively determining an answer to the question based on multiple different portions of the present reasoning path when the determined likelihood is greater than a predetermined value.