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.

Date of Patent:
Oct. 08, 2024

Filed:

Nov. 08, 2019
Applicant:

Nippon Telegraph and Telephone Corporation, Tokyo, JP;

Inventors:

Kosuke Nishida, Tokyo, JP;

Kyosuke Nishida, Tokyo, JP;

Hisako Asano, Tokyo, JP;

Junji Tomita, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06N 5/04 (2023.01); G06F 40/20 (2020.01); G06N 3/045 (2023.01);
U.S. Cl.
CPC ...
G06N 5/04 (2013.01); G06F 40/20 (2020.01); G06N 3/045 (2023.01);
Abstract

There is provided a learning device for learning a neural network used for search of external knowledge in order to increase search accuracy of external knowledge required for arithmetic processing. With an input sentence Q as an input, an external knowledge search unitselects pieces of external knowledge based on similarity degrees between pieces of external knowledge included in an external knowledge databaseand the input sentence Q, using a neural network, and causes the selected pieces of external knowledge to be search results R. A processing unitacquires a response sentence A to the input sentence Q by arithmetic processing with the input sentence Q and the selected pieces of external knowledge as an input. A consideration calculation unitcalculates a consideration v determined from an index indicating correctness of the response sentence A based on a true output T given to the input sentence Q in advance and an index indicating quality of the selected pieces of external knowledge. A learning unitupdates neural network parameters of the second external knowledge search unitusing the consideration v.


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